SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                              --------------------

                                    FORM 8-K


                                 CURRENT REPORT

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934



      Date of Report (Date of earliest event reported): September 15, 1998
                      ------------------------------------


                          CITIBANK (SOUTH DAKOTA), N.A.
                                  ON BEHALF OF
                       CITIBANK CREDIT CARD MASTER TRUST I
          (Issuer in respect of the Citibank Credit Card Master Trust I

      9 1/4% Class B Credit Card Participation Certificates, Series 1991-3
      7.875% Class A Credit Card Participation Certificates, Series 1991-6
      8.350% Class B Credit Card Participation Certificates, Series 1991-6
       5.95% Class A Credit Card Participation Certificates, Series 1993-2
       6.15% Class B Credit Card Participation Certificates, Series 1993-2
       5.50% Class A Credit Card Participation Certificates, Series 1993-3
       5.70% Class B Credit Card Participation Certificates, Series 1993-3
       7.25% Class A Credit Card Participation Certificates, Series 1994-2
       7.50% Class B Credit Card Participation Certificates, Series 1994-2
       6.80% Class A Credit Card Participation Certificates, Series 1994-3
       7.00% Class B Credit Card Participation Certificates, Series 1994-3
       8.25% Class A Credit Card Participation Certificates, Series 1994-4
       8.25% Class A Credit Card Participation Certificates, Series 1995-1
       8.45% Class B Credit Card Participation Certificates, Series 1995-1

                                                       (cover page 1 of 2 pages)
                                       1
<PAGE>

       7.85% Class A Credit Card Participation Certificates, Series 1995-3
       6.70% Class A Credit Card Participation Certificates, Series 1995-8
       6.85% Class B Credit Card Participation Certificates, Series 1995-8
       6.55% Class A Credit Card Participation Certificates, Series 1995-9
       6.65% Class B Credit Card Participation Certificates, Series 1995-9
      5.90% Class A Credit Card Participation Certificates, Series 1995-10
      6.05% Class B Credit Card Participation Certificates, Series 1995-10
  Floating Rate Class A Credit Card Participation Certificates, Series 1995-11
    Zero Coupon Class A Credit Card Participation Certificates, Series 1996-1
    Zero Coupon Class B Credit Card Participation Certificates, Series 1996-1
   Floating Rate Class A Credit Card Participation Certificates, Series 1996-5
   Floating Rate Class B Credit Card Participation Certificates, Series 1996-5
   Floating Rate Class A Credit Card Participation Certificates, Series 1996-6
   Floating Rate Class B Credit Card Participation Certificates, Series 1996-6
       6.55% Class A Credit Card Participation Certificates, Series 1997-2
       6.70% Class B Credit Card Participation Certificates, Series 1997-2
      6.839% Class A Credit Card Participation Certificates, Series 1997-3
      6.989% Class B Credit Card Participation Certificates, Series 1997-3
   Floating Rate Class A Credit Card Participation Certificates, Series 1997-4
   Floating Rate Class B Credit Card Participation Certificates, Series 1997-4
    Zero Coupon Class A Credit Card Participation Certificates, Series 1997-6
    Zero Coupon Class B Credit Card Participation Certificates, Series 1997-6
       6.35% Class A Credit Card Participation Certificates, Series 1997-7
       6.45% Class B Credit Card Participation Certificates, Series 1997-7
   Floating Rate Class A Credit Card Participation Certificates, Series 1997-8
  Floating Rate Class A Credit Card Participation Certificates, Series 1997-10
  Floating Rate Class B Credit Card Participation Certificates, Series 1997-10
       5.75% Class A Credit Card Participation Certificates, Series 1998-1
      5.875% Class B Credit Card Participation Certificates, Series 1998-1
       6.05% Class A Credit Card Participation Certificates, Series 1998-2
       6.20% Class B Credit Card Participation Certificates, Series 1998-2
       5.80% Class A Credit Card Participation Certificates, Series 1998-3
       5.95% Class B Credit Card Participation Certificates, Series 1998-3
       5.85% Class A Credit Card Participation Certificates, Series 1998-6
       6.00% Class B Credit Card Participation Certificates, Series 1998-6
   Floating Rate Class A Credit Card Participation Certificates, Series 1998-7
   Floating Rate Class B Credit Card Participation Certificates, Series 1998-7
                       (collectively, the "Certificates"))
               (Exact name of registrant as specified in charter)



                            UNITED STATES OF AMERICA
                 (State or other jurisdiction of incorporation)

                                   46-0358360
                      (I.R.S. Employer Identification No.)


      33-41055, 33-43576, 33-62180, 33-77802, 33-84834, 33-97664, 33-99328
                                  and 333-38803
                              (Commission File No.)


    701 EAST 60TH STREET, NORTH
     SIOUX FALLS, SOUTH DAKOTA                              57117
(Address of principal executive offices)                  (Zip Code)


        Registrant's telephone number, including area code (605) 331-2626


                                 NOT APPLICABLE
          (Former name or former address, if changed since last report)


                            (cover page 2 of 2 pages)


                                       2
<PAGE>

ITEM 5. OTHER EVENTS.

     Set forth below is the monthly report and servicer's  certificate  for each
Series  referenced on the cover page of this Form 8-K (each, a "Monthly Report")
for the Due Period  ending  August 26,  1998 and the related  Distribution  Date
delivered  pursuant to Section 5.02 of the applicable  Series  Supplement to the
Pooling and Servicing Agreement (together, the "Agreement") relating to Citibank
Credit Card Master Trust I, among Citibank (South  Dakota),  N.A., as Seller and
Servicer,  Citibank (Nevada), National Association, as Seller, and Bankers Trust
Company (as  successor to Yasuda Bank and Trust Company  (U.S.A.)),  as Trustee.
Each Monthly Report contains information  relating to the distribution,  if any,
to Certificateholders of the related Series on the referenced  Distribution Date
as well as information  relating to the  Receivables and the Accounts from which
the Receivables have arisen.  Capitalized terms used but not defined herein have
the meanings set forth in the Agreement.

                                       3
<PAGE>
 


                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                       CITIBANK CREDIT CARD MASTER TRUST I
                    For the Due Period Ending August 26, 1998

 ==============================================================================

This Certificate relates to the Due Period ending August 26, 1998 and the
related Distribution Date.

A.   Information Regarding the portfolio
     -----------------------------------

1. Portfolio Yield ........................................            13.25%

       Yield Component  ...................................            18.95%

       Credit Loss Component  .............................             5.70%

2. New Purchase Rate  .....................................            20.49%

3. Total Payment Rate  ....................................            21.29%

4. Principal Payment  Rate  ................................           20.30%

5. Aggregate Amount of Principal Receivables in the Trust :

     Beginning of Due Period  ............................  $  38,125,694,204

     Average  ............................................  $  37,837,734,517

     Lump Sum Addition  ..................................  $               0

     End of Due Period  ..................................  $  37,784,911,130

6. Delinquencies (Aggregate outstanding balances in the Accounts that
   were delinquent by the time periods listed below as of the close of
   business of the month preceding the Distribution Date, as a percentage
   of aggregate Receivables as of the last day of the Due Period) :

       Current  ..........................................  $  34,228,857,605
         5-34 days delinquent  ...........................  $   2,462,472,884
        35-64 days delinquent  ...........................  $     678,011,625
        65-94 days delinquent  ...........................  $     364,926,415
       95-124 days delinquent  ...........................  $     261,981,522
      125-154 days delinquent  ...........................  $     217,057,774
      155-184 days delinquent  ...........................  $     173,116,950

      Current  ...........................................             89.17%
         5-34 days delinquent  ...........................              6.41%
        35-64 days delinquent  ...........................              1.77%
        65-94 days delinquent  ...........................              0.95%
       95-124 days delinquent  ...........................              0.68%
      125-154 days delinquent  ...........................              0.57%
      155-184 days delinquent  ...........................              0.45%


                                       4
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                  CITIBANK CREDIT CARD MASTER TRUST I - GROUP 1
                    For the Due Period Ending August 26, 1998

==============================================================================

                                             Current Due   Current Due
                                            Period on an   Period on a
                                        Actual Basis (1)   Standard Basis (1)
B. Information Regarding Group 1
   -----------------------------
  (Percentage Basis)

  1. Portfolio Yield                              13.25%             13.25%
  2. Weighted Average Certificate Rate             6.20%              6.20%
  3. Weighted Average Investor Fee Rates
         Fixed Servicing Fee                       0.39%              0.39%
         Others                                    0.11%              0.11%
  4. Surplus Finance Charge Collections            6.55%              6.55%
  5. Required Surplus Finance Charge Amount        0.00%              0.00%
  6. Aggregate Surplus Finance Charge Amount       6.55%              6.55%
     minus Required Surplus Finance Charge Amount

C. Information Regarding Group 1
   -----------------------------
  (Dollars Basis)

  1. Total Investor Collections                 $ 6,929,377,688 $ 6,929,377,688
         Principal Collections                  $ 6,478,017,698 $ 6,478,017,698
         Finance Charge Collections             $   451,359,990 $   451,359,990
  2. Investor Default Amount                    $   136,257,567 $   136,257,567
  3. Investor Monthly Interest                  $   158,149,955 $   158,149,955
  4. Investor Monthly Fees
         Fixed Servicing Fees                   $     9,900,601 $     9,900,601
         Others                                 $     2,868,011 $     2,867,318
  5. Surplus Finance Charge Collections         $   144,183,856 $   144,184,549
  6. Required Surplus Finance Charge Collections$             0 $             0
  7. Aggregate Surplus Finance Charge Amount    $   144,183,856 $   144,184,549
     minus Required Surplus Finance Charge Amount

(1)  Values for Current Due Period on an Actual Basis reflect, in the case
     of a first due period close of a series, activity from the series cut-off
     or close dates until the first due period end, or, as in the case of
     Investor Monthly Interest and certain fees, until the first distribution
     date. Values for Current Due Period on a Standard Basis reflect activity
     for the entire current period, as if all series had already been
     outstanding prior to the first day of such period.

     All percents are based on actual cash revenue or expense for the period,
     converted to an annualized percent using daycounts appropriate for the
     item, either 30/360, actual/360, or actual/actual. Depending on the item,
     cash expenses may accrue from July 29, 1998 to August 26, 1998, 29 days, or
     August 6 , 1998 to September 7 , 1998, 33 days (standard basis).

                                       5
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-3
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1991-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1991-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$            0

  1b.  Class B Invested Amount         .......................$            0

  2a.  Class A Monthly Interest ..............................$            0

  2b.  Class B Monthly Interest ..............................$      420,104

  3a.  Balance in the Class A Interest Funding Account  ......$            0

  3b   Balance in the Class B Interest Funding Account  ......$    1,680,417

  4a.  Available Cash Collateral Amount  .....................$   68,880,000

  4b.  Percent of Class B Invested Amount          ...........         0.00%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$   54,500,000

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$  109,000,000

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       6
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$  110,680,417

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$  109,000,000

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$    1,680,417

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  875,000,000

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  109,000,000

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       7
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-3
                    For the Due Period Ending August 26, 1998

==============================================================================
     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1991-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       8
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1991-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1991-6
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  141,666,667

  1b.  Class B Invested Amount         .......................$  105,500,000

  2a.  Class A Monthly Interest ..............................$    1,394,531

  2b.  Class B Monthly Interest ..............................$      734,104

  3a.  Balance in the Class A Interest Funding Account  ......$   22,312,500

  3b   Balance in the Class B Interest Funding Account  ......$    2,936,417

  4a.  Available Cash Collateral Amount  .....................$   66,885,000

  4b.  Percent of Class B Invested Amount          ...........        63.40%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$   70,833,333

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$  708,333,333

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       9
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-6
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  708,333,333

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       10
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1991-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       11
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-2
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1993-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.
D. Information Regarding Series 1993-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,718,750

  2b.  Class B Monthly Interest ..............................$      246,000

  3a.  Balance in the Class A Interest Funding Account  ......$   22,312,500

  3b   Balance in the Class B Interest Funding Account  ......$    1,476,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       12
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-2
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   22,312,500

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$    1,476,000

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   22,312,500

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$    1,476,000

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       13
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-2
                    For the Due Period Ending August 26, 1998

==============================================================================
     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1993-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify as follows:  1. Capitalized  terms used in this
Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       14
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1993-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.
D. Information Regarding Series 1993-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  250,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    1,432,292

  2b.  Class B Monthly Interest ..............................$      228,000

  3a.  Balance in the Class A Interest Funding Account  ......$    6,875,000

  3b   Balance in the Class B Interest Funding Account  ......$      456,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$   62,500,000

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$  500,000,000

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       15
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  500,000,000

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       16
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1993-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:
           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       17
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.
D. Information Regarding Series 1994-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  940,000,000

  1b.  Class B Invested Amount         .......................$   60,000,000

  2a.  Class A Monthly Interest ..............................$    5,679,167

  2b.  Class B Monthly Interest ..............................$      375,000

  3a.  Balance in the Class A Interest Funding Account  ......$   28,395,833

  3b   Balance in the Class B Interest Funding Account  ......$    1,875,000

  4a.  Available Cash Collateral Amount  .....................$   70,000,000

  4b.  Percent of Class B Invested Amount          ...........       116.67%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       18
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       19
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       20
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1994-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,833,333

  2b.  Class B Monthly Interest ..............................$      186,667

  3a.  Balance in the Class A Interest Funding Account  ......$   14,166,667

  3b   Balance in the Class B Interest Funding Account  ......$      933,333

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       21
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       22
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       23
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-4  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1994-4
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    5,156,250

  2b.  Class B Monthly Interest ..............................$      256,100

  3a.  Balance in the Class A Interest Funding Account  ......$   20,625,000

  3b   Balance in the Class B Interest Funding Account  ......$      256,100

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       24
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      256,100

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      256,100

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       25
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-4  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       26
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-1
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    4,296,875

  2b.  Class B Monthly Interest ..............................$      281,667

  3a.  Balance in the Class A Interest Funding Account  ......$    8,593,750

  3b   Balance in the Class B Interest Funding Account  ......$      563,333

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       27
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       28
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       29
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    4,088,542

  2b.  Class B Monthly Interest ..............................$      210,217

  3a.  Balance in the Class A Interest Funding Account  ......$    4,088,542

  3b   Balance in the Class B Interest Funding Account  ......$      210,217

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       30
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      210,217

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      210,217

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       31
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       32
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-8
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-8  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-8
   -----------------------------------

  1a.  Class A Invested Amount         .......................$            0

  1b.  Class B Invested Amount         .......................$            0

  2a.  Class A Monthly Interest ..............................$    2,233,333

  2b.  Class B Monthly Interest ..............................$      145,791

  3a.  Balance in the Class A Interest Funding Account  ......$   13,400,000

  3b   Balance in the Class B Interest Funding Account  ......$      874,745

  4a.  Available Cash Collateral Amount  .....................$   29,787,800

  4b.  Percent of Class B Invested Amount          ...........         0.00%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$  400,000,000

  8b.  Class B Monthly Principal for the Distribution Date (2)$   25,540,000

  9a.  Balance in the Class A Principal Funding Account  .....$  400,000,000

  9b.  Balance in the Class B Principal Funding Account  .....$   25,540,000

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       33
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-8
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$  413,400,000

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$   26,414,745

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$  400,000,000

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$   25,540,000

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   13,400,000

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      874,745

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  400,000,000

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$   25,540,000

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       34
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-8
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-8  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       35
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-9  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-9
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,729,167

  2b.  Class B Monthly Interest ..............................$      177,333

  3a.  Balance in the Class A Interest Funding Account  ......$   13,645,833

  3b   Balance in the Class B Interest Funding Account  ......$      886,667

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       36
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       37
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-9  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       38
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-10
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1995-10  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-10
   ------------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,687,500

  2b.  Class B Monthly Interest ..............................$      242,000

  3a.  Balance in the Class A Interest Funding Account  ......$    3,687,500

  3b   Balance in the Class B Interest Funding Account  ......$      242,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       39
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-10
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       40
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-10
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1995-10  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       41
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-11
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1995-11  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-11
   ------------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    3,040,104

  2b.  Class B Monthly Interest ..............................$      197,600

  3a.  Balance in the Class A Interest Funding Account  ......$    3,040,104

  3b   Balance in the Class B Interest Funding Account  ......$      197,600

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       42
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-11
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      197,600

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      197,600

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       43
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-11
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1995-11  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       44
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1996-1
   -----------------------------------

  1a.  Class A Accreted Invested Amount.......................$  865,524,950

  1b.  Class B Accreted Invested Amount.......................$   55,191,414

  2a.  Class A Monthly Accretion..............................$    4,176,656

  2b.  Class B Monthly Accretion..............................$      273,090

  3a.  Balance in the Class A Interest Funding Account  ......$            0

  3b   Balance in the Class B Interest Funding Account  ......$            0

  4a.  Available Cash Collateral Amount  .....................$   64,484,524

  4b.  Percent of Class B Accreted Invested Amount ...........       116.84%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       45
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       46
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       47
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-5  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1996-5
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    4,293,188

  2b.  Class B Monthly Interest ..............................$      281,480

  3a.  Balance in the Class A Interest Funding Account  ......$   12,879,563

  3b   Balance in the Class B Interest Funding Account  ......$      844,440

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       48
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   12,879,563

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      844,440

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   12,879,563

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      844,440

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       49
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-5  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       50
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1996-6
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  940,000,000

  1b.  Class B Invested Amount         .......................$   60,000,000

  2a.  Class A Monthly Interest ..............................$    5,071,927

  2b.  Class B Monthly Interest ..............................$      333,865

  3a.  Balance in the Class A Interest Funding Account  ......$   15,215,780

  3b   Balance in the Class B Interest Funding Account  ......$    1,001,595

  4a.  Available Cash Collateral Amount  .....................$   70,000,000

  4b.  Percent of Class B Invested Amount          ...........       116.67%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       51
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   15,215,780

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$    1,001,595

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   15,215,780

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$    1,001,595

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       52
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer



                                       53
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    4,093,750

  2b.  Class B Monthly Interest ..............................$      268,000

  3a.  Balance in the Class A Interest Funding Account  ......$    4,093,750

  3b   Balance in the Class B Interest Funding Account  ......$      268,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       54
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       55
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       56
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-1
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  250,000,000

  1b.  Class B Invested Amount         .......................$   16,000,000

  2a.  Class A Monthly Interest ..............................$    1,302,083

  2b.  Class B Monthly Interest ..............................$       81,117

  3a.  Balance in the Class A Interest Funding Account  ......$    9,114,583

  3b   Balance in the Class B Interest Funding Account  ......$       81,117

  4a.  Available Cash Collateral Amount  .....................$   18,620,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       57
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-1
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       58
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       59
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  400,000,000

  1b.  Class B Invested Amount         .......................$   25,540,000

  2a.  Class A Monthly Interest ..............................$    2,279,667

  2b.  Class B Monthly Interest ..............................$      148,749

  3a.  Balance in the Class A Interest Funding Account  ......$    2,279,667

  3b   Balance in the Class B Interest Funding Account  ......$      148,749

  4a.  Available Cash Collateral Amount  .....................$   29,787,800

  4b.  Percent of Class B Invested Amount          ...........       116.63%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       60
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       61
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       62
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending August 26, 1998

==============================================================================
     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-4  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-4
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    4,254,000

  2b.  Class B Monthly Interest ..............................$      279,356

  3a.  Balance in the Class A Interest Funding Account  ......$   12,762,000

  3b   Balance in the Class B Interest Funding Account  ......$      838,068

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       63
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   12,762,000

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      838,068

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   12,762,000

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      838,068

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       64
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-4  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer



                                       65
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-5
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-5  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-5
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  567,375,887

  1b.  Class B Invested Amount         .......................$   36,342,987

  2a.  Class A Monthly Interest ..............................$    3,128,842

  2b.  Class B Monthly Interest ..............................$      182,714

  3a.  Balance in the Class A Interest Funding Account  ......$    6,257,683

  3b   Balance in the Class B Interest Funding Account  ......$      377,610

  4a.  Available Cash Collateral Amount  .....................$   42,260,321

  4b.  Percent of Class B Invested Amount          ...........       116.28%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       66
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-5
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       67
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-5
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-5  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 14, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       68
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-6
   -----------------------------------

  1a.  Class A Accreted Invested Amount.......................$  684,842,663

  1b.  Class B Accreted Invested Amount.......................$   43,449,330

  2a.  Class A Monthly Accretion..............................$    3,608,617

  2b.  Class B Monthly Accretion..............................$      234,235

  3a.  Balance in the Class A Interest Funding Account  ......$            0

  3b   Balance in the Class B Interest Funding Account  ......$            0

  4a.  Available Cash Collateral Amount  .....................$   51,145,899

  4b.  Percent of Class B Accreted Invested Amount ...........       117.71%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       69
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       70
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       71
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-7  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-7
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    3,307,292

  2b.  Class B Monthly Interest ..............................$      215,000

  3a.  Balance in the Class A Interest Funding Account  ......$    3,307,292

  3b   Balance in the Class B Interest Funding Account  ......$      215,000

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       72
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       73
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-7  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       74
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-8  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-8
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,454,323

  2b.  Class B Monthly Interest ..............................$      225,838

  3a.  Balance in the Class A Interest Funding Account  ......$   10,958,542

  3b   Balance in the Class B Interest Funding Account  ......$      225,838

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       75
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   10,958,542

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      225,838

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   10,958,542

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      225,838

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       76
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-8  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       77
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1997-10  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-10
   ------------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,271,920

  2b.  Class B Monthly Interest ..............................$      149,527

  3a.  Balance in the Class A Interest Funding Account  ......$    2,271,920

  3b   Balance in the Class B Interest Funding Account  ......$      149,527

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       78
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$    2,271,920

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      149,527

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$    2,271,920

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      149,527

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       79
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1997-10  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer



                                       80
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-1
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,593,750

  2b.  Class B Monthly Interest ..............................$      235,000

  3a.  Balance in the Class A Interest Funding Account  ......$    7,187,500

  3b   Balance in the Class B Interest Funding Account  ......$      470,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       81
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       82
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       83
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending August 26, 1998

==============================================================================
     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,520,833

  2b.  Class B Monthly Interest ..............................$      165,333

  3a.  Balance in the Class A Interest Funding Account  ......$    5,041,667

  3b   Balance in the Class B Interest Funding Account  ......$      330,667

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       84
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       85
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       86
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    3,020,833

  2b.  Class B Monthly Interest ..............................$      198,333

  3a.  Balance in the Class A Interest Funding Account  ......$    3,020,833

  3b   Balance in the Class B Interest Funding Account  ......$      198,333

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       87
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       88
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       89
<PAGE>

                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.


D. Information Regarding Series 1998-6
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,656,250

  2b.  Class B Monthly Interest ..............................$      240,000

  3a.  Balance in the Class A Interest Funding Account  ......$   18,525,000

  3b   Balance in the Class B Interest Funding Account  ......$    1,216,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       90
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.


                                       91
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer


                                       92
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-7  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-7
   -----------------------------------

  1a.  Class A Invested Amount         .......................$1,250,000,000

  1b.  Class B Invested Amount         .......................$   80,000,000

  2a.  Class A Monthly Interest ..............................$    5,689,870

  2b.  Class B Monthly Interest ..............................$      371,563

  3a.  Balance in the Class A Interest Funding Account  ......$    5,689,870

  3b   Balance in the Class B Interest Funding Account  ......$      371,563

  4a.  Available Cash Collateral Amount  .....................$   93,100,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.


                                       93
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$    5,689,870

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      371,563

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$    5,689,870

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      371,563

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.



                                       94
<PAGE>

                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-7  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.


                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998


                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,


                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer



                                       95
<PAGE>

         

                                   SIGNATURES

                 Pursuant to the requirements of the Securities  Exchange Act of
1934,  the  registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized.


                                CITIBANK (SOUTH DAKOTA), N.A.,
                                as Servicer
                                Citibank Credit Card Master Trust I



                          By: /s/ Eugene D. Rowenhorst
                             ----------------------------------------------
                              Eugene D. Rowenhorst
                              Senior Vice President


Date: September 14, 1998



                                       96
<PAGE>
[{"type": "8-K", "sequence": "1", "description": "CITIBANK CREDIT CARD MASTER TRUST I", "secsgml_size_bytes": 242714}]
{"company-data": {"conformed-name": "CITIBANK SOUTH DAKOTA N A", "cik": "0000839947", "assigned-sic": "6189", "irs-number": "460358360", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-17797", "film-number": "98710439"}, "business-address": {"street1": "701 E 60TH ST N", "city": "SIOUX FALLS", "state": "SD", "zip": "57117", "phone": "6053312626"}, "mail-address": {"street1": "CITIBANK N A LEGAL AFFAIRS OFFICE", "street2": "425 PARK AVENUE 2ND FLOOR", "city": "NEW YORK", "state": "NY", "zip": "10043"}}
SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                              --------------------

                                    FORM 8-K

                                 CURRENT REPORT

     Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

      Date of Report (Date of earliest event reported): September 15, 1998
                      ------------------------------------

                          CITIBANK (SOUTH DAKOTA), N.A.
                                  ON BEHALF OF
                       CITIBANK CREDIT CARD MASTER TRUST I
          (Issuer in respect of the Citibank Credit Card Master Trust I

      9 1/4% Class B Credit Card Participation Certificates, Series 1991-3
      7.875% Class A Credit Card Participation Certificates, Series 1991-6
      8.350% Class B Credit Card Participation Certificates, Series 1991-6
       5.95% Class A Credit Card Participation Certificates, Series 1993-2
       6.15% Class B Credit Card Participation Certificates, Series 1993-2
       5.50% Class A Credit Card Participation Certificates, Series 1993-3
       5.70% Class B Credit Card Participation Certificates, Series 1993-3
       7.25% Class A Credit Card Participation Certificates, Series 1994-2
       7.50% Class B Credit Card Participation Certificates, Series 1994-2
       6.80% Class A Credit Card Participation Certificates, Series 1994-3
       7.00% Class B Credit Card Participation Certificates, Series 1994-3
       8.25% Class A Credit Card Participation Certificates, Series 1994-4
       8.25% Class A Credit Card Participation Certificates, Series 1995-1
       8.45% Class B Credit Card Participation Certificates, Series 1995-1

                                                       (cover page 1 of 2 pages)
                                       1
7.85% Class A Credit Card Participation Certificates, Series 1995-3
       6.70% Class A Credit Card Participation Certificates, Series 1995-8
       6.85% Class B Credit Card Participation Certificates, Series 1995-8
       6.55% Class A Credit Card Participation Certificates, Series 1995-9
       6.65% Class B Credit Card Participation Certificates, Series 1995-9
      5.90% Class A Credit Card Participation Certificates, Series 1995-10
      6.05% Class B Credit Card Participation Certificates, Series 1995-10
  Floating Rate Class A Credit Card Participation Certificates, Series 1995-11
    Zero Coupon Class A Credit Card Participation Certificates, Series 1996-1
    Zero Coupon Class B Credit Card Participation Certificates, Series 1996-1
   Floating Rate Class A Credit Card Participation Certificates, Series 1996-5
   Floating Rate Class B Credit Card Participation Certificates, Series 1996-5
   Floating Rate Class A Credit Card Participation Certificates, Series 1996-6
   Floating Rate Class B Credit Card Participation Certificates, Series 1996-6
       6.55% Class A Credit Card Participation Certificates, Series 1997-2
       6.70% Class B Credit Card Participation Certificates, Series 1997-2
      6.839% Class A Credit Card Participation Certificates, Series 1997-3
      6.989% Class B Credit Card Participation Certificates, Series 1997-3
   Floating Rate Class A Credit Card Participation Certificates, Series 1997-4
   Floating Rate Class B Credit Card Participation Certificates, Series 1997-4
    Zero Coupon Class A Credit Card Participation Certificates, Series 1997-6
    Zero Coupon Class B Credit Card Participation Certificates, Series 1997-6
       6.35% Class A Credit Card Participation Certificates, Series 1997-7
       6.45% Class B Credit Card Participation Certificates, Series 1997-7
   Floating Rate Class A Credit Card Participation Certificates, Series 1997-8
  Floating Rate Class A Credit Card Participation Certificates, Series 1997-10
  Floating Rate Class B Credit Card Participation Certificates, Series 1997-10
       5.75% Class A Credit Card Participation Certificates, Series 1998-1
      5.875% Class B Credit Card Participation Certificates, Series 1998-1
       6.05% Class A Credit Card Participation Certificates, Series 1998-2
       6.20% Class B Credit Card Participation Certificates, Series 1998-2
       5.80% Class A Credit Card Participation Certificates, Series 1998-3
       5.95% Class B Credit Card Participation Certificates, Series 1998-3
       5.85% Class A Credit Card Participation Certificates, Series 1998-6
       6.00% Class B Credit Card Participation Certificates, Series 1998-6
   Floating Rate Class A Credit Card Participation Certificates, Series 1998-7
   Floating Rate Class B Credit Card Participation Certificates, Series 1998-7
                       (collectively, the "Certificates"))
               (Exact name of registrant as specified in charter)

                            UNITED STATES OF AMERICA
                 (State or other jurisdiction of incorporation)

                                   46-0358360
                      (I.R.S. Employer Identification No.)

      33-41055, 33-43576, 33-62180, 33-77802, 33-84834, 33-97664, 33-99328
                                  and 333-38803
                              (Commission File No.)

    701 EAST 60TH STREET, NORTH
     SIOUX FALLS, SOUTH DAKOTA                              57117
(Address of principal executive offices)                  (Zip Code)

        Registrant's telephone number, including area code (605) 331-2626

                                 NOT APPLICABLE
          (Former name or former address, if changed since last report)

                            (cover page 2 of 2 pages)

                                       2
ITEM 5. OTHER EVENTS.

     Set forth below is the monthly report and servicer's  certificate  for each
Series  referenced on the cover page of this Form 8-K (each, a "Monthly Report")
for the Due Period  ending  August 26,  1998 and the related  Distribution  Date
delivered  pursuant to Section 5.02 of the applicable  Series  Supplement to the
Pooling and Servicing Agreement (together, the "Agreement") relating to Citibank
Credit Card Master Trust I, among Citibank (South  Dakota),  N.A., as Seller and
Servicer,  Citibank (Nevada), National Association, as Seller, and Bankers Trust
Company (as  successor to Yasuda Bank and Trust Company  (U.S.A.)),  as Trustee.
Each Monthly Report contains information  relating to the distribution,  if any,
to Certificateholders of the related Series on the referenced  Distribution Date
as well as information  relating to the  Receivables and the Accounts from which
the Receivables have arisen.  Capitalized terms used but not defined herein have
the meanings set forth in the Agreement.

                                       3
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                       CITIBANK CREDIT CARD MASTER TRUST I
                    For the Due Period Ending August 26, 1998

 ==============================================================================

This Certificate relates to the Due Period ending August 26, 1998 and the
related Distribution Date.

A.   Information Regarding the portfolio
     -----------------------------------

1. Portfolio Yield ........................................            13.25%

       Yield Component  ...................................            18.95%

       Credit Loss Component  .............................             5.70%

2. New Purchase Rate  .....................................            20.49%

3. Total Payment Rate  ....................................            21.29%

4. Principal Payment  Rate  ................................           20.30%

5. Aggregate Amount of Principal Receivables in the Trust :

     Beginning of Due Period  ............................  $  38,125,694,204

     Average  ............................................  $  37,837,734,517

     Lump Sum Addition  ..................................  $               0

     End of Due Period  ..................................  $  37,784,911,130

6. Delinquencies (Aggregate outstanding balances in the Accounts that
   were delinquent by the time periods listed below as of the close of
   business of the month preceding the Distribution Date, as a percentage
   of aggregate Receivables as of the last day of the Due Period) :

       Current  ..........................................  $  34,228,857,605
         5-34 days delinquent  ...........................  $   2,462,472,884
        35-64 days delinquent  ...........................  $     678,011,625
        65-94 days delinquent  ...........................  $     364,926,415
       95-124 days delinquent  ...........................  $     261,981,522
      125-154 days delinquent  ...........................  $     217,057,774
      155-184 days delinquent  ...........................  $     173,116,950

      Current  ...........................................             89.17%
         5-34 days delinquent  ...........................              6.41%
        35-64 days delinquent  ...........................              1.77%
        65-94 days delinquent  ...........................              0.95%
       95-124 days delinquent  ...........................              0.68%
      125-154 days delinquent  ...........................              0.57%
      155-184 days delinquent  ...........................              0.45%

                                       4
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                  CITIBANK CREDIT CARD MASTER TRUST I - GROUP 1
                    For the Due Period Ending August 26, 1998

==============================================================================

                                             Current Due   Current Due
                                            Period on an   Period on a
                                        Actual Basis (1)   Standard Basis (1)
B. Information Regarding Group 1
   -----------------------------
  (Percentage Basis)

  1. Portfolio Yield                              13.25%             13.25%
  2. Weighted Average Certificate Rate             6.20%              6.20%
  3. Weighted Average Investor Fee Rates
         Fixed Servicing Fee                       0.39%              0.39%
         Others                                    0.11%              0.11%
  4. Surplus Finance Charge Collections            6.55%              6.55%
  5. Required Surplus Finance Charge Amount        0.00%              0.00%
  6. Aggregate Surplus Finance Charge Amount       6.55%              6.55%
     minus Required Surplus Finance Charge Amount

C. Information Regarding Group 1
   -----------------------------
  (Dollars Basis)

  1. Total Investor Collections                 $ 6,929,377,688 $ 6,929,377,688
         Principal Collections                  $ 6,478,017,698 $ 6,478,017,698
         Finance Charge Collections             $   451,359,990 $   451,359,990
  2. Investor Default Amount                    $   136,257,567 $   136,257,567
  3. Investor Monthly Interest                  $   158,149,955 $   158,149,955
  4. Investor Monthly Fees
         Fixed Servicing Fees                   $     9,900,601 $     9,900,601
         Others                                 $     2,868,011 $     2,867,318
  5. Surplus Finance Charge Collections         $   144,183,856 $   144,184,549
  6. Required Surplus Finance Charge Collections$             0 $             0
  7. Aggregate Surplus Finance Charge Amount    $   144,183,856 $   144,184,549
     minus Required Surplus Finance Charge Amount

(1)  Values for Current Due Period on an Actual Basis reflect, in the case
     of a first due period close of a series, activity from the series cut-off
     or close dates until the first due period end, or, as in the case of
     Investor Monthly Interest and certain fees, until the first distribution
     date. Values for Current Due Period on a Standard Basis reflect activity
     for the entire current period, as if all series had already been
     outstanding prior to the first day of such period.

     All percents are based on actual cash revenue or expense for the period,
     converted to an annualized percent using daycounts appropriate for the
     item, either 30/360, actual/360, or actual/actual. Depending on the item,
     cash expenses may accrue from July 29, 1998 to August 26, 1998, 29 days, or
     August 6 , 1998 to September 7 , 1998, 33 days (standard basis).

                                       5
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-3
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1991-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1991-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$            0

  1b.  Class B Invested Amount         .......................$            0

  2a.  Class A Monthly Interest ..............................$            0

  2b.  Class B Monthly Interest ..............................$      420,104

  3a.  Balance in the Class A Interest Funding Account  ......$            0

  3b   Balance in the Class B Interest Funding Account  ......$    1,680,417

  4a.  Available Cash Collateral Amount  .....................$   68,880,000

  4b.  Percent of Class B Invested Amount          ...........         0.00%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$   54,500,000

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$  109,000,000

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       6
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$  110,680,417

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$  109,000,000

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$    1,680,417

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  875,000,000

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  109,000,000

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       7
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-3
                    For the Due Period Ending August 26, 1998

==============================================================================
     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1991-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       8
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1991-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1991-6
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  141,666,667

  1b.  Class B Invested Amount         .......................$  105,500,000

  2a.  Class A Monthly Interest ..............................$    1,394,531

  2b.  Class B Monthly Interest ..............................$      734,104

  3a.  Balance in the Class A Interest Funding Account  ......$   22,312,500

  3b   Balance in the Class B Interest Funding Account  ......$    2,936,417

  4a.  Available Cash Collateral Amount  .....................$   66,885,000

  4b.  Percent of Class B Invested Amount          ...........        63.40%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$   70,833,333

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$  708,333,333

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       9
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-6
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  708,333,333

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       10
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1991-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1991-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       11
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-2
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1993-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.
D. Information Regarding Series 1993-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,718,750

  2b.  Class B Monthly Interest ..............................$      246,000

  3a.  Balance in the Class A Interest Funding Account  ......$   22,312,500

  3b   Balance in the Class B Interest Funding Account  ......$    1,476,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       12
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-2
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   22,312,500

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$    1,476,000

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   22,312,500

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$    1,476,000

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       13
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-2
                    For the Due Period Ending August 26, 1998

==============================================================================
     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1993-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify as follows:  1. Capitalized  terms used in this
Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       14
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1993-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.
D. Information Regarding Series 1993-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  250,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    1,432,292

  2b.  Class B Monthly Interest ..............................$      228,000

  3a.  Balance in the Class A Interest Funding Account  ......$    6,875,000

  3b   Balance in the Class B Interest Funding Account  ......$      456,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$   62,500,000

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$  500,000,000

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       15
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  500,000,000

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       16
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1993-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1993-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:
           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       17
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.
D. Information Regarding Series 1994-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  940,000,000

  1b.  Class B Invested Amount         .......................$   60,000,000

  2a.  Class A Monthly Interest ..............................$    5,679,167

  2b.  Class B Monthly Interest ..............................$      375,000

  3a.  Balance in the Class A Interest Funding Account  ......$   28,395,833

  3b   Balance in the Class B Interest Funding Account  ......$    1,875,000

  4a.  Available Cash Collateral Amount  .....................$   70,000,000

  4b.  Percent of Class B Invested Amount          ...........       116.67%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       18
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       19
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       20
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1994-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,833,333

  2b.  Class B Monthly Interest ..............................$      186,667

  3a.  Balance in the Class A Interest Funding Account  ......$   14,166,667

  3b   Balance in the Class B Interest Funding Account  ......$      933,333

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       21
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       22
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       23
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-4  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1994-4
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    5,156,250

  2b.  Class B Monthly Interest ..............................$      256,100

  3a.  Balance in the Class A Interest Funding Account  ......$   20,625,000

  3b   Balance in the Class B Interest Funding Account  ......$      256,100

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       24
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      256,100

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      256,100

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       25
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1994-4  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       26
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-1
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    4,296,875

  2b.  Class B Monthly Interest ..............................$      281,667

  3a.  Balance in the Class A Interest Funding Account  ......$    8,593,750

  3b   Balance in the Class B Interest Funding Account  ......$      563,333

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       27
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       28
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       29
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    4,088,542

  2b.  Class B Monthly Interest ..............................$      210,217

  3a.  Balance in the Class A Interest Funding Account  ......$    4,088,542

  3b   Balance in the Class B Interest Funding Account  ......$      210,217

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       30
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      210,217

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      210,217

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       31
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       32
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-8
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-8  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-8
   -----------------------------------

  1a.  Class A Invested Amount         .......................$            0

  1b.  Class B Invested Amount         .......................$            0

  2a.  Class A Monthly Interest ..............................$    2,233,333

  2b.  Class B Monthly Interest ..............................$      145,791

  3a.  Balance in the Class A Interest Funding Account  ......$   13,400,000

  3b   Balance in the Class B Interest Funding Account  ......$      874,745

  4a.  Available Cash Collateral Amount  .....................$   29,787,800

  4b.  Percent of Class B Invested Amount          ...........         0.00%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$  400,000,000

  8b.  Class B Monthly Principal for the Distribution Date (2)$   25,540,000

  9a.  Balance in the Class A Principal Funding Account  .....$  400,000,000

  9b.  Balance in the Class B Principal Funding Account  .....$   25,540,000

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       33
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-8
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$  413,400,000

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$   26,414,745

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$  400,000,000

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$   25,540,000

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   13,400,000

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      874,745

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$  400,000,000

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$   25,540,000

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       34
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-8
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-8  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       35
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-9  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-9
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,729,167

  2b.  Class B Monthly Interest ..............................$      177,333

  3a.  Balance in the Class A Interest Funding Account  ......$   13,645,833

  3b   Balance in the Class B Interest Funding Account  ......$      886,667

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       36
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       37
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1995-9  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       38
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-10
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1995-10  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-10
   ------------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,687,500

  2b.  Class B Monthly Interest ..............................$      242,000

  3a.  Balance in the Class A Interest Funding Account  ......$    3,687,500

  3b   Balance in the Class B Interest Funding Account  ......$      242,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       39
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-10
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       40
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-10
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1995-10  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       41
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-11
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1995-11  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1995-11
   ------------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    3,040,104

  2b.  Class B Monthly Interest ..............................$      197,600

  3a.  Balance in the Class A Interest Funding Account  ......$    3,040,104

  3b   Balance in the Class B Interest Funding Account  ......$      197,600

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       42
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-11
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      197,600

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      197,600

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       43
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1995-11
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1995-11  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       44
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1996-1
   -----------------------------------

  1a.  Class A Accreted Invested Amount.......................$  865,524,950

  1b.  Class B Accreted Invested Amount.......................$   55,191,414

  2a.  Class A Monthly Accretion..............................$    4,176,656

  2b.  Class B Monthly Accretion..............................$      273,090

  3a.  Balance in the Class A Interest Funding Account  ......$            0

  3b   Balance in the Class B Interest Funding Account  ......$            0

  4a.  Available Cash Collateral Amount  .....................$   64,484,524

  4b.  Percent of Class B Accreted Invested Amount ...........       116.84%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       45
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       46
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       47
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-5  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1996-5
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    4,293,188

  2b.  Class B Monthly Interest ..............................$      281,480

  3a.  Balance in the Class A Interest Funding Account  ......$   12,879,563

  3b   Balance in the Class B Interest Funding Account  ......$      844,440

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       48
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   12,879,563

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      844,440

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   12,879,563

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      844,440

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       49
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-5  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       50
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1996-6
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  940,000,000

  1b.  Class B Invested Amount         .......................$   60,000,000

  2a.  Class A Monthly Interest ..............................$    5,071,927

  2b.  Class B Monthly Interest ..............................$      333,865

  3a.  Balance in the Class A Interest Funding Account  ......$   15,215,780

  3b   Balance in the Class B Interest Funding Account  ......$    1,001,595

  4a.  Available Cash Collateral Amount  .....................$   70,000,000

  4b.  Percent of Class B Invested Amount          ...........       116.67%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       51
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   15,215,780

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$    1,001,595

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   15,215,780

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$    1,001,595

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       52
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

                Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1996-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       53
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    4,093,750

  2b.  Class B Monthly Interest ..............................$      268,000

  3a.  Balance in the Class A Interest Funding Account  ......$    4,093,750

  3b   Balance in the Class B Interest Funding Account  ......$      268,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       54
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       55
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       56
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-1
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  250,000,000

  1b.  Class B Invested Amount         .......................$   16,000,000

  2a.  Class A Monthly Interest ..............................$    1,302,083

  2b.  Class B Monthly Interest ..............................$       81,117

  3a.  Balance in the Class A Interest Funding Account  ......$    9,114,583

  3b   Balance in the Class B Interest Funding Account  ......$       81,117

  4a.  Available Cash Collateral Amount  .....................$   18,620,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       57
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-1
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       58
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       59
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  400,000,000

  1b.  Class B Invested Amount         .......................$   25,540,000

  2a.  Class A Monthly Interest ..............................$    2,279,667

  2b.  Class B Monthly Interest ..............................$      148,749

  3a.  Balance in the Class A Interest Funding Account  ......$    2,279,667

  3b   Balance in the Class B Interest Funding Account  ......$      148,749

  4a.  Available Cash Collateral Amount  .....................$   29,787,800

  4b.  Percent of Class B Invested Amount          ...........       116.63%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       60
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       61
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       62
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending August 26, 1998

==============================================================================
     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-4  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-4
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    4,254,000

  2b.  Class B Monthly Interest ..............................$      279,356

  3a.  Balance in the Class A Interest Funding Account  ......$   12,762,000

  3b   Balance in the Class B Interest Funding Account  ......$      838,068

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       63
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   12,762,000

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      838,068

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   12,762,000

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      838,068

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       64
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-4  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       65
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-5
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-5  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-5
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  567,375,887

  1b.  Class B Invested Amount         .......................$   36,342,987

  2a.  Class A Monthly Interest ..............................$    3,128,842

  2b.  Class B Monthly Interest ..............................$      182,714

  3a.  Balance in the Class A Interest Funding Account  ......$    6,257,683

  3b   Balance in the Class B Interest Funding Account  ......$      377,610

  4a.  Available Cash Collateral Amount  .....................$   42,260,321

  4b.  Percent of Class B Invested Amount          ...........       116.28%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       66
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-5
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       67
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-5
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-5  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 14, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       68
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-6
   -----------------------------------

  1a.  Class A Accreted Invested Amount.......................$  684,842,663

  1b.  Class B Accreted Invested Amount.......................$   43,449,330

  2a.  Class A Monthly Accretion..............................$    3,608,617

  2b.  Class B Monthly Accretion..............................$      234,235

  3a.  Balance in the Class A Interest Funding Account  ......$            0

  3b   Balance in the Class B Interest Funding Account  ......$            0

  4a.  Available Cash Collateral Amount  .....................$   51,145,899

  4b.  Percent of Class B Accreted Invested Amount ...........       117.71%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       69
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       70
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       71
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-7  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-7
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    3,307,292

  2b.  Class B Monthly Interest ..............................$      215,000

  3a.  Balance in the Class A Interest Funding Account  ......$    3,307,292

  3b   Balance in the Class B Interest Funding Account  ......$      215,000

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       72
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       73
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-7  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       74
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-8  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-8
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,454,323

  2b.  Class B Monthly Interest ..............................$      225,838

  3a.  Balance in the Class A Interest Funding Account  ......$   10,958,542

  3b   Balance in the Class B Interest Funding Account  ......$      225,838

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       75
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$   10,958,542

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      225,838

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$   10,958,542

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      225,838

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       76
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1997-8  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       77
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1997-10  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1997-10
   ------------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,271,920

  2b.  Class B Monthly Interest ..............................$      149,527

  3a.  Balance in the Class A Interest Funding Account  ......$    2,271,920

  3b   Balance in the Class B Interest Funding Account  ......$      149,527

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       78
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$    2,271,920

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      149,527

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$    2,271,920

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      149,527

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       79
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the "Agreement"),  as supplemented by the Series 1997-10  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       80
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-1
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,593,750

  2b.  Class B Monthly Interest ..............................$      235,000

  3a.  Balance in the Class A Interest Funding Account  ......$    7,187,500

  3b   Balance in the Class B Interest Funding Account  ......$      470,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       81
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending August 26, 1998

 ==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       82
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-1  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       83
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending August 26, 1998

==============================================================================
     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-2
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  500,000,000

  1b.  Class B Invested Amount         .......................$   32,000,000

  2a.  Class A Monthly Interest ..............................$    2,520,833

  2b.  Class B Monthly Interest ..............................$      165,333

  3a.  Balance in the Class A Interest Funding Account  ......$    5,041,667

  3b   Balance in the Class B Interest Funding Account  ......$      330,667

  4a.  Available Cash Collateral Amount  .....................$   37,240,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       84
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       85
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-2  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       86
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending August 26, 1998

 ==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-3
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  625,000,000

  1b.  Class B Invested Amount         .......................$   40,000,000

  2a.  Class A Monthly Interest ..............................$    3,020,833

  2b.  Class B Monthly Interest ..............................$      198,333

  3a.  Balance in the Class A Interest Funding Account  ......$    3,020,833

  3b   Balance in the Class B Interest Funding Account  ......$      198,333

  4a.  Available Cash Collateral Amount  .....................$   46,550,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       87
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       88
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-3  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 8 , 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       89
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

==============================================================================

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-6
   -----------------------------------

  1a.  Class A Invested Amount         .......................$  750,000,000

  1b.  Class B Invested Amount         .......................$   48,000,000

  2a.  Class A Monthly Interest ..............................$    3,656,250

  2b.  Class B Monthly Interest ..............................$      240,000

  3a.  Balance in the Class A Interest Funding Account  ......$   18,525,000

  3b   Balance in the Class B Interest Funding Account  ......$    1,216,000

  4a.  Available Cash Collateral Amount  .....................$   55,860,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       90
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$            0

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$            0

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$            0

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$            0

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       91
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-6  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 10, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       92
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-7  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee,  does hereby certify the  information  set forth below.  Capitalized
terms used in this Certificate  have their  respective  meanings as set forth in
the Agreement or Series Supplement, as applicable.

D. Information Regarding Series 1998-7
   -----------------------------------

  1a.  Class A Invested Amount         .......................$1,250,000,000

  1b.  Class B Invested Amount         .......................$   80,000,000

  2a.  Class A Monthly Interest ..............................$    5,689,870

  2b.  Class B Monthly Interest ..............................$      371,563

  3a.  Balance in the Class A Interest Funding Account  ......$    5,689,870

  3b   Balance in the Class B Interest Funding Account  ......$      371,563

  4a.  Available Cash Collateral Amount  .....................$   93,100,000

  4b.  Percent of Class B Invested Amount          ...........       116.38%

  5a.  Class A Investor Charge-offs  .........................$            0

  5b.  Class B Investor Charge-offs  .........................$            0

  6.   Required Amount  ......................................$            0

  7.   Draw on Cash Collateral Account  ......................$            0

  8a.  Class A Monthly Principal for the Distribution Date (2)$            0

  8b.  Class B Monthly Principal for the Distribution Date (2)$            0

  9a.  Balance in the Class A Principal Funding Account  .....$            0

  9b.  Balance in the Class B Principal Funding Account  .....$            0

       -------------------------------------------------------
       (2) Applicable during the Accumulation Period and any
           Early Amortization Period.

                                       93
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending August 26, 1998

==============================================================================

E. Information Regarding Charge-offs and Distributions to Certificateholders(3)
   -------------------------------------------------------------------------

   1a. The total amount of the distribution to Class A
       Certificateholders On the Payment Date   .................$    5,689,870

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      371,563

   2a. The amount of the distribution set forth in item 1(a) above
       in respect of principal on the Class A Certificates   ....$            0

   2b. The amount of the distribution set forth in item 1(b) above
       in respect of principal on the Class B Certificates   ....$            0

   3a. The amount of the distribution set forth in item 1(a) above
       in respect of interest on the Class A Certificates  ......$    5,689,870

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      371,563

   4a. The amount, if any, by which the outstanding principal
       balance of the Class A Certificates exceeds the Class A
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

   4b. The amount, if any, by which the outstanding principal
       balance of the Class B Certificates exceeds the Class B
       Invested Amount as of the end of the Record Date with
       respect to the Payment Date  .............................$            0

       ----------------------------------------------------------
       (3) The following information, as applicable, is included
           only on Payment Date.

                                       94
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

 ==============================================================================

               Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending August 26, 1998

==============================================================================

     The  undersigned,  a duly  authorized  representative  of  Citibank  (South
Dakota), N.A., as Servicer ("Citibank (South Dakota)"),  pursuant to the Pooling
and Servicing  Agreement dated as of May 29, 1991, (as amended and supplemented,
the  "Agreement"),  as supplemented by the Series 1998-7  Supplement (as amended
and  supplemented,  the "Series  Supplement"),  among Citibank  (South  Dakota),
Seller and  Servicer,  Citibank  (Nevada),  National  Association,  Seller,  and
Bankers Trust  Company (as successor to Yasuda Bank and Trust Company  (U.S.A)),
as Trustee, does hereby certify as follows:

           1.    Capitalized terms used in this Certificate have their
                 respective meanings as set forth in the Agreement or
                 Series Supplement, as applicable.

           2.    Citibank (South Dakota) is, as of the date hereof, the
                 Servicer under the Agreement.

           3.    The undersigned is a Servicing Officer.

           4.    This Certificate relates to the Distribution Date
                 occurring on September 15, 1998

           5.    As of the date hereof, to the best knowledge of
                 the undersigned, the Servicer has performed in
                 all material respects all its obligations under
                 the Agreement through the Due Period preceeding
                 such Distribution Date.

           6.    As of date hereof, to the best knowledge of the
                 undersigned, no Amortization Event has been deemed
                 to have occurred on or prior to such Distribution Date.

           7.    As of date hereof, to the best knowledge of the
                 undersigned, no Lien has been place on any of the
                 Receivables other than pursuant to the Agreement.

                 IN WITNESS WHEREOF, the undersigned has duly
                 executed and delivered this Certificate this 9th day of
                 September 1998

                                CITIBANK (SOUTH DAKOTA), N.A.
                                Servicer,

                                By: /s/ Joseph Mecca
                                        Name:    Joseph Mecca
                                        Title:   Servicing Officer

                                       95
SIGNATURES

                 Pursuant to the requirements of the Securities  Exchange Act of
1934,  the  registrant has duly caused this report to be signed on its behalf by
the undersigned hereunto duly authorized.

                                CITIBANK (SOUTH DAKOTA), N.A.,
                                as Servicer
                                Citibank Credit Card Master Trust I

                          By: /s/ Eugene D. Rowenhorst
                             ----------------------------------------------
                              Eugene D. Rowenhorst
                              Senior Vice President

Date: September 14, 1998

                                       96