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): June 15, 1999
                      ------------------------------------


                          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
       5.95% Class A Credit Card Participation Certificates, Series 1993-2
       6.15% Class B Credit Card Participation Certificates, Series 1993-2
       7.25% Class A Credit Card Participation Certificates, Series 1994-2
       7.50% Class B Credit Card Participation Certificates, Series 1994-2
       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
       7.85% Class A Credit Card Participation Certificates, Series 1995-3
       6.55% Class A Credit Card Participation Certificates, Series 1995-9
       6.65% Class B Credit Card Participation Certificates, Series 1995-9
    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

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

      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
      5.30% Class A Credit Card Participation Certificates, Series 1998-9
      5.55% Class B Credit Card Participation Certificates, Series 1998-9
      5.50% Class A Credit Card Participation Certificates, Series 1999-1
      5.75% Class B Credit Card Participation Certificates, Series 1999-1
      5.875% Class A Credit Card Participation Certificates, Series 1999-2
      6.15% Class B Credit Card Participation Certificates, Series 1999-2
   Floating Rate Class A Credit Card Participation Certificates, Series 1999-3
   Floating Rate Class B Credit Card Participation Certificates, Series 1999-3
      6.10% Class A Credit Card Participation Certificates, Series 1999-5
      6.30% Class B Credit Card Participation Certificates, Series 1999-5
                       (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  May 25, 1999 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 May 25, 1999

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

This Certificate relates to the Due Period ending May 25, 1999 and the related
Distribution Date.

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

1. Portfolio Yield ........................................            12.74%

       Yield Component  ...................................            17.83%

       Credit Loss Component  .............................             5.09%

2. New Purchase Rate  .....................................            20.21%

3. Total Payment Rate  ....................................            20.66%

4. Principal Payment  Rate  ................................           19.74%

5. Aggregate Amount of Principal Receivables in the Trust :

     Beginning of Due Period  ............................  $  43,694,523,202

     Average  ............................................  $  43,501,015,942

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

     End of Due Period  ..................................  $  43,428,491,281

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  ..........................................  $  40,163,726,726
         5-34 days delinquent  ...........................  $   2,371,666,887
        35-64 days delinquent  ...........................  $     607,789,232
        65-94 days delinquent  ...........................  $     371,857,677
       95-124 days delinquent  ...........................  $     262,416,401
      125-154 days delinquent  ...........................  $     217,406,363
      155-184 days delinquent  ...........................  $     182,119,487

      Current  ...........................................             90.92%
         5-34 days delinquent  ...........................              5.37%
        35-64 days delinquent  ...........................              1.38%
        65-94 days delinquent  ...........................              0.84%
       95-124 days delinquent  ...........................              0.59%
      125-154 days delinquent  ...........................              0.49%
      155-184 days delinquent  ...........................              0.41%

                                       4
<PAGE>

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

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

                 CITIBANK CREDIT CARD MASTER TRUST I - GROUP 1
                    For the Due Period Ending May 25, 1999

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

                                             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                              12.74%             12.68%
  2. Weighted Average Certificate Rate             5.80%              5.78%
  3. Weighted Average Investor Fee Rates
         Fixed Servicing Fee                       0.36%              0.37%
         Others                                    0.08%              0.08%
  4. Surplus Finance Charge Collections            6.50%              6.45%
  5. Required Surplus Finance Charge Amount        0.00%              0.00%
  6. Aggregate Surplus Finance Charge Amount       6.50%              6.45%
     minus Required Surplus Finance Charge Amount

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

  1. Total Investor Collections                 $ 7,216,866,190 $ 7,215,276,357
         Principal Collections                  $ 6,752,231,060 $ 6,752,231,060
         Finance Charge Collections             $   464,635,130 $   463,045,297
  2. Investor Default Amount                    $   133,671,731 $   133,671,731
  3. Investor Monthly Interest                  $   164,350,112 $   163,943,662
  4. Investor Monthly Fees
         Fixed Servicing Fees                   $    10,152,690 $    10,544,849
         Others                                 $     2,567,275 $     2,568,226
  5. Surplus Finance Charge Collections         $   153,893,322 $   152,316,829
  6. Required Surplus Finance Charge Collections$             0 $             0
  7. Aggregate Surplus Finance Charge Amount    $   153,893,322 $   152,316,829
     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 April 28, 1999 to May 25, 1999, 28 days, or
     May 6 , 1999 to June 6 , 1999, 32 days (standard basis).

                                       5
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

               Citibank Credit Card Master Trust I, Series 1993-2
                     For the Due Period Ending May 25, 1999

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

    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  ......$   11,156,250

  3b   Balance in the Class B Interest Funding Account  ......$      738,000

  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.

                                       6
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

               Citibank Credit Card Master Trust I, Series 1993-2
                     For the Due Period Ending May 25, 1999

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

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.

                                       7
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1993-2
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending May 25, 1999

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

    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  ......$   11,358,333

  3b   Balance in the Class B Interest Funding Account  ......$      750,000

  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.

                                       9
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending May 25, 1999

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

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.

                                       10
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$      217,103

  3a.  Balance in the Class A Interest Funding Account  ......$    5,156,250

  3b   Balance in the Class B Interest Funding Account  ......$      217,103

  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 1994-4
                    For the Due Period Ending May 25, 1999

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

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   .................$      217,103

   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  ......$      217,103

   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 1994-4
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       14
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending May 25, 1999

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

    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  ......$   21,484,375

  3b   Balance in the Class B Interest Funding Account  ......$    1,408,333

  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.

                                       15
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending May 25, 1999

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

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.

                                       16
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       17
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$      177,819

  3a.  Balance in the Class A Interest Funding Account  ......$   16,354,167

  3b   Balance in the Class B Interest Funding Account  ......$      177,819

  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.

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

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

                 Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending May 25, 1999

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

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   .................$      177,819

   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  ......$      177,819

   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 1995-3
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       20
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending May 25, 1999

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

    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  ......$    5,458,333

  3b   Balance in the Class B Interest Funding Account  ......$      354,667

  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.

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

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

                 Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending May 25, 1999

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

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 1995-9
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       23
<PAGE>

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

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

                 Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending May 25, 1999

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

    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.......................$  903,848,651

  1b.  Class B Accreted Invested Amount.......................$   57,698,436

  2a.  Class A Monthly Accretion..............................$    4,361,589

  2b.  Class B Monthly Accretion..............................$      285,495

  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  .....................$   67,304,555

  4b.  Percent of Class B Accreted Invested Amount ...........       116.65%

  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 1996-1
                    For the Due Period Ending May 25, 1999

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

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.

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

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

                 Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending May 25, 1999

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

    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.

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

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

                 Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending May 25, 1999

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

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.

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

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

                 Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending May 25, 1999

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

    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.


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

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

                 Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending May 25, 1999

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

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.


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

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

                 Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending May 25, 1999

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

    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 June 10, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending May 25, 1999

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

    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  ......$   16,375,000

  3b   Balance in the Class B Interest Funding Account  ......$    1,072,000

  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.

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

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

                 Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending May 25, 1999

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

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.

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

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

                 Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending May 25, 1999

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

    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  ......$    9,118,667

  3b   Balance in the Class B Interest Funding Account  ......$      594,997

  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.


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

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

                 Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending May 25, 1999

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

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 1997-3
                    For the Due Period Ending May 25, 1999

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

    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 June 10, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       38
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending May 25, 1999

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

    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.


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

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

                 Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending May 25, 1999

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

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.


                                       40
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending May 25, 1999

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

    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 June 10, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       41
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending May 25, 1999

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

    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.......................$  718,013,230

  1b.  Class B Accreted Invested Amount.......................$   45,603,478

  2a.  Class A Monthly Accretion..............................$    3,783,401

  2b.  Class B Monthly Accretion..............................$      245,848

  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  .....................$   53,595,519

  4b.  Percent of Class B Accreted Invested Amount ...........       117.53%

  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 1997-6
                    For the Due Period Ending May 25, 1999

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

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.


                                       43
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       44
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending May 25, 1999

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

    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  ......$   13,229,167

  3b   Balance in the Class B Interest Funding Account  ......$      860,000

  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.

                                       45
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending May 25, 1999

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

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 1997-7
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       47
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$    3,038,958

  2b.  Class B Monthly Interest ..............................$      197,297

  3a.  Balance in the Class A Interest Funding Account  ......$    9,640,833

  3b   Balance in the Class B Interest Funding Account  ......$      197,297

  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 Master Trust I, Series 1997-8
                    For the Due Period Ending May 25, 1999

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

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   .................$    9,640,833

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      197,297

   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  ......$    9,640,833

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      197,297

   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 Master Trust I, Series 1997-8
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       50
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$    1,974,618

  2b.  Class B Monthly Interest ..............................$      130,500

  3a.  Balance in the Class A Interest Funding Account  ......$    1,974,618

  3b   Balance in the Class B Interest Funding Account  ......$      130,500

  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.

                                       51
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending May 25, 1999

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

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   .................$    1,974,618

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      130,500

   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  ......$    1,974,618

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      130,500

   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 1997-10
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       53
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending May 25, 1999

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

    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  ......$   17,968,750

  3b   Balance in the Class B Interest Funding Account  ......$    1,175,000

  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 1998-1
                    For the Due Period Ending May 25, 1999

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

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 1998-1
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       56
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending May 25, 1999

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

    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  ......$   12,604,167

  3b   Balance in the Class B Interest Funding Account  ......$      826,667

  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.

                                       57
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending May 25, 1999

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

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 1998-2
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       59
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending May 25, 1999

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

    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  ......$   12,083,333

  3b   Balance in the Class B Interest Funding Account  ......$      793,333

  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.

                                       60
<PAGE>

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

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

                 Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending May 25, 1999

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

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 1998-3
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       62
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending May 25, 1999

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

    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  ......$    7,312,500

  3b   Balance in the Class B Interest Funding Account  ......$      480,000

  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.

                                       63
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending May 25, 1999

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

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.

                                       64
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending May 25, 1999

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

    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 June 10, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       65
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$    4,946,615

  2b.  Class B Monthly Interest ..............................$      323,994

  3a.  Balance in the Class A Interest Funding Account  ......$    4,946,615

  3b   Balance in the Class B Interest Funding Account  ......$      323,994

  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.

                                       66
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending May 25, 1999

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

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   .................$    4,946,615

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      323,994

   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  ......$    4,946,615

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      323,994

   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 1998-7
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       68
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 CITIBANK CREDIT CARD MASTER TRUST I SERIES 1998-9
                    For the Due Period Ending May 25, 1999

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

    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 1998-9 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 1998-9
   -----------------------------------

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

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

  2a.  Class A Monthly Interest ..............................$    3,312,500

  2b.  Class B Monthly Interest ..............................$      222,000

  3a.  Balance in the Class A Interest Funding Account  ......$   19,102,083

  3b   Balance in the Class B Interest Funding Account  ......$    1,280,200

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 1998-9
                    For the Due Period Ending May 25, 1999

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

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 1998-9
                    For the Due Period Ending May 25, 1999

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

    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 1998-9 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 June 7 , 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       71
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1999-1
                    For the Due Period Ending May 25, 1999

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

    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 1999-1 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 1999-1
   -----------------------------------

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

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

  2a.  Class A Monthly Interest ..............................$    3,437,500

  2b.  Class B Monthly Interest ..............................$      230,000

  3a.  Balance in the Class A Interest Funding Account  ......$   13,520,833

  3b   Balance in the Class B Interest Funding Account  ......$      904,667

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 1999-1
                    For the Due Period Ending May 25, 1999

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

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 1999-1
                     For the Due Period Ending May 25, 1999

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

    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 1999-1 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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       74
<PAGE>
                          CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                  Citibank Credit Master Trust I, Series 1999-2
                     For the Due Period Ending May 25, 1999

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

    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 1999-2 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 1999-2
   -----------------------------------

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

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

  2a.  Class A Monthly Interest ..............................$    3,671,875

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

  3a.  Balance in the Class A Interest Funding Account  ......$   13,096,354

  3b   Balance in the Class B Interest Funding Account  ......$      877,400

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 Master Trust I, Series 1999-2
                    For the Due Period Ending May 25, 1999

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

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.


                                       76
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Master Trust I, Series 1999-2
                    For the Due Period Ending May 25, 1999

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

    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 1999-2 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 June 10, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer


                                       77
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card MasterTrust I Series 1999-3
                    For the Due Period Ending May 25, 1999

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

    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 1999-3 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 1999-3
   -----------------------------------

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

  1b.  Class B Invested Amount         .......................$   80,000,000

  2a.  Class A Monthly Interest ..............................$    5,092,813

  2b.  Class B Monthly Interest ..............................$      338,829

  3a.  Balance in the Class A Interest Funding Account  ......$   14,224,753

  3b   Balance in the Class B Interest Funding Account  ......$      946,384

  4a.  Available Cash Collateral Amount  .....................$   79,800,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 MasterTrust I Series 1999-3
                    For the Due Period Ending May 25, 1999

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

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   .................$   14,224,753

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      946,384

   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  ......$   14,224,753

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      946,384

   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 MasterTrust I Series 1999-3
                    For the Due Period Ending May 25, 1999

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

    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 1999-3 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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       80
<PAGE>
                         CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I Series 1999-5
                    For the Due Period Ending May 25, 1999

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

    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 1999-5 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 1999-5
   -----------------------------------

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

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

  2a.  Class A Monthly Interest ..............................$    4,193,750

  2b.  Class B Monthly Interest ..............................$      277,200

  3a.  Balance in the Class A Interest Funding Account  ......$    4,193,750

  3b   Balance in the Class B Interest Funding Account  ......$      277,200

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 1999-5
                    For the Due Period Ending May 25, 1999

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

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 1999-5
                    For the Due Period Ending May 25, 1999

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

    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 1999-5 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 June 15, 1999

           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 7th day of
                 June 1999


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


                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       83
<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: June 10, 1999




                                       84
<PAGE>
[{"type": "8-K", "sequence": "1", "description": "CITIBANK CREDIT CARD MASTER TRUST I", "secsgml_size_bytes": 209595}]
{"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": "99645621"}, "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): June 15, 1999
                      ------------------------------------

                          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
       5.95% Class A Credit Card Participation Certificates, Series 1993-2
       6.15% Class B Credit Card Participation Certificates, Series 1993-2
       7.25% Class A Credit Card Participation Certificates, Series 1994-2
       7.50% Class B Credit Card Participation Certificates, Series 1994-2
       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
       7.85% Class A Credit Card Participation Certificates, Series 1995-3
       6.55% Class A Credit Card Participation Certificates, Series 1995-9
       6.65% Class B Credit Card Participation Certificates, Series 1995-9
    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

                                                       (cover page 1 of 2 pages)
                                       1
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
      5.30% Class A Credit Card Participation Certificates, Series 1998-9
      5.55% Class B Credit Card Participation Certificates, Series 1998-9
      5.50% Class A Credit Card Participation Certificates, Series 1999-1
      5.75% Class B Credit Card Participation Certificates, Series 1999-1
      5.875% Class A Credit Card Participation Certificates, Series 1999-2
      6.15% Class B Credit Card Participation Certificates, Series 1999-2
   Floating Rate Class A Credit Card Participation Certificates, Series 1999-3
   Floating Rate Class B Credit Card Participation Certificates, Series 1999-3
      6.10% Class A Credit Card Participation Certificates, Series 1999-5
      6.30% Class B Credit Card Participation Certificates, Series 1999-5
                       (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  May 25, 1999 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 May 25, 1999

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

This Certificate relates to the Due Period ending May 25, 1999 and the related
Distribution Date.

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

1. Portfolio Yield ........................................            12.74%

       Yield Component  ...................................            17.83%

       Credit Loss Component  .............................             5.09%

2. New Purchase Rate  .....................................            20.21%

3. Total Payment Rate  ....................................            20.66%

4. Principal Payment  Rate  ................................           19.74%

5. Aggregate Amount of Principal Receivables in the Trust :

     Beginning of Due Period  ............................  $  43,694,523,202

     Average  ............................................  $  43,501,015,942

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

     End of Due Period  ..................................  $  43,428,491,281

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  ..........................................  $  40,163,726,726
         5-34 days delinquent  ...........................  $   2,371,666,887
        35-64 days delinquent  ...........................  $     607,789,232
        65-94 days delinquent  ...........................  $     371,857,677
       95-124 days delinquent  ...........................  $     262,416,401
      125-154 days delinquent  ...........................  $     217,406,363
      155-184 days delinquent  ...........................  $     182,119,487

      Current  ...........................................             90.92%
         5-34 days delinquent  ...........................              5.37%
        35-64 days delinquent  ...........................              1.38%
        65-94 days delinquent  ...........................              0.84%
       95-124 days delinquent  ...........................              0.59%
      125-154 days delinquent  ...........................              0.49%
      155-184 days delinquent  ...........................              0.41%

                                       4
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 CITIBANK CREDIT CARD MASTER TRUST I - GROUP 1
                    For the Due Period Ending May 25, 1999

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

                                             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                              12.74%             12.68%
  2. Weighted Average Certificate Rate             5.80%              5.78%
  3. Weighted Average Investor Fee Rates
         Fixed Servicing Fee                       0.36%              0.37%
         Others                                    0.08%              0.08%
  4. Surplus Finance Charge Collections            6.50%              6.45%
  5. Required Surplus Finance Charge Amount        0.00%              0.00%
  6. Aggregate Surplus Finance Charge Amount       6.50%              6.45%
     minus Required Surplus Finance Charge Amount

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

  1. Total Investor Collections                 $ 7,216,866,190 $ 7,215,276,357
         Principal Collections                  $ 6,752,231,060 $ 6,752,231,060
         Finance Charge Collections             $   464,635,130 $   463,045,297
  2. Investor Default Amount                    $   133,671,731 $   133,671,731
  3. Investor Monthly Interest                  $   164,350,112 $   163,943,662
  4. Investor Monthly Fees
         Fixed Servicing Fees                   $    10,152,690 $    10,544,849
         Others                                 $     2,567,275 $     2,568,226
  5. Surplus Finance Charge Collections         $   153,893,322 $   152,316,829
  6. Required Surplus Finance Charge Collections$             0 $             0
  7. Aggregate Surplus Finance Charge Amount    $   153,893,322 $   152,316,829
     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 April 28, 1999 to May 25, 1999, 28 days, or
     May 6 , 1999 to June 6 , 1999, 32 days (standard basis).

                                       5
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

               Citibank Credit Card Master Trust I, Series 1993-2
                     For the Due Period Ending May 25, 1999

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

    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  ......$   11,156,250

  3b   Balance in the Class B Interest Funding Account  ......$      738,000

  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.

                                       6
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

               Citibank Credit Card Master Trust I, Series 1993-2
                     For the Due Period Ending May 25, 1999

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

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.

                                       7
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1993-2
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending May 25, 1999

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

    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  ......$   11,358,333

  3b   Balance in the Class B Interest Funding Account  ......$      750,000

  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.

                                       9
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending May 25, 1999

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

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.

                                       10
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1994-2
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I, Series 1994-4
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$      217,103

  3a.  Balance in the Class A Interest Funding Account  ......$    5,156,250

  3b   Balance in the Class B Interest Funding Account  ......$      217,103

  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 1994-4
                    For the Due Period Ending May 25, 1999

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

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   .................$      217,103

   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  ......$      217,103

   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 1994-4
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       14
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending May 25, 1999

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

    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  ......$   21,484,375

  3b   Balance in the Class B Interest Funding Account  ......$    1,408,333

  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.

                                       15
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending May 25, 1999

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

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.

                                       16
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-1
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       17
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$      177,819

  3a.  Balance in the Class A Interest Funding Account  ......$   16,354,167

  3b   Balance in the Class B Interest Funding Account  ......$      177,819

  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.

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

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

                 Citibank Credit Card Master Trust I, Series 1995-3
                    For the Due Period Ending May 25, 1999

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

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   .................$      177,819

   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  ......$      177,819

   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 1995-3
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       20
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending May 25, 1999

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

    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  ......$    5,458,333

  3b   Balance in the Class B Interest Funding Account  ......$      354,667

  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.

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

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

                 Citibank Credit Card Master Trust I, Series 1995-9
                    For the Due Period Ending May 25, 1999

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

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 1995-9
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending May 25, 1999

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

    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.......................$  903,848,651

  1b.  Class B Accreted Invested Amount.......................$   57,698,436

  2a.  Class A Monthly Accretion..............................$    4,361,589

  2b.  Class B Monthly Accretion..............................$      285,495

  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  .....................$   67,304,555

  4b.  Percent of Class B Accreted Invested Amount ...........       116.65%

  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 1996-1
                    For the Due Period Ending May 25, 1999

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

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.

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

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

                 Citibank Credit Card Master Trust I, Series 1996-1
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending May 25, 1999

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

    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.

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

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

                 Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending May 25, 1999

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

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.

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

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

                 Citibank Credit Card MasterTrust I,Series 1996-5
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending May 25, 1999

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

    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.

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

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

                 Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending May 25, 1999

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

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.

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

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

                 Citibank Credit Card Master Trust I,Series 1996-6
                    For the Due Period Ending May 25, 1999

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

    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 June 10, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending May 25, 1999

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

    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  ......$   16,375,000

  3b   Balance in the Class B Interest Funding Account  ......$    1,072,000

  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.

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

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

                 Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending May 25, 1999

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

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.

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

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

                 Citibank Credit Card Master Trust I, Series 1997-2
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

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

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

                 Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending May 25, 1999

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

    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  ......$    9,118,667

  3b   Balance in the Class B Interest Funding Account  ......$      594,997

  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.

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

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

                 Citibank Credit Card Master Trust I, Series 1997-3
                    For the Due Period Ending May 25, 1999

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

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 1997-3
                    For the Due Period Ending May 25, 1999

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

    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 June 10, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       38
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending May 25, 1999

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

    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.

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

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

                 Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending May 25, 1999

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

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.

                                       40
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-4
                    For the Due Period Ending May 25, 1999

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

    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 June 10, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       41
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending May 25, 1999

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

    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.......................$  718,013,230

  1b.  Class B Accreted Invested Amount.......................$   45,603,478

  2a.  Class A Monthly Accretion..............................$    3,783,401

  2b.  Class B Monthly Accretion..............................$      245,848

  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  .....................$   53,595,519

  4b.  Percent of Class B Accreted Invested Amount ...........       117.53%

  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 1997-6
                    For the Due Period Ending May 25, 1999

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

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.

                                       43
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-6
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       44
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending May 25, 1999

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

    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  ......$   13,229,167

  3b   Balance in the Class B Interest Funding Account  ......$      860,000

  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.

                                       45
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-7
                    For the Due Period Ending May 25, 1999

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

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 1997-7
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       47
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-8
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$    3,038,958

  2b.  Class B Monthly Interest ..............................$      197,297

  3a.  Balance in the Class A Interest Funding Account  ......$    9,640,833

  3b   Balance in the Class B Interest Funding Account  ......$      197,297

  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 Master Trust I, Series 1997-8
                    For the Due Period Ending May 25, 1999

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

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   .................$    9,640,833

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      197,297

   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  ......$    9,640,833

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      197,297

   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 Master Trust I, Series 1997-8
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       50
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$    1,974,618

  2b.  Class B Monthly Interest ..............................$      130,500

  3a.  Balance in the Class A Interest Funding Account  ......$    1,974,618

  3b   Balance in the Class B Interest Funding Account  ......$      130,500

  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.

                                       51
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1997-10
                    For the Due Period Ending May 25, 1999

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

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   .................$    1,974,618

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      130,500

   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  ......$    1,974,618

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      130,500

   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 1997-10
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       53
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-1
                    For the Due Period Ending May 25, 1999

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

    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  ......$   17,968,750

  3b   Balance in the Class B Interest Funding Account  ......$    1,175,000

  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 1998-1
                    For the Due Period Ending May 25, 1999

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

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 1998-1
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       56
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending May 25, 1999

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

    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  ......$   12,604,167

  3b   Balance in the Class B Interest Funding Account  ......$      826,667

  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.

                                       57
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-2
                    For the Due Period Ending May 25, 1999

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

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 1998-2
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       59
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending May 25, 1999

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

    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  ......$   12,083,333

  3b   Balance in the Class B Interest Funding Account  ......$      793,333

  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.

                                       60
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-3
                    For the Due Period Ending May 25, 1999

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

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 1998-3
                    For the Due Period Ending May 25, 1999

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

    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 June 7 , 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       62
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending May 25, 1999

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

    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  ......$    7,312,500

  3b   Balance in the Class B Interest Funding Account  ......$      480,000

  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.

                                       63
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending May 25, 1999

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

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.

                                       64
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-6
                    For the Due Period Ending May 25, 1999

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

    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 June 10, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       65
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending May 25, 1999

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

    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 ..............................$    4,946,615

  2b.  Class B Monthly Interest ..............................$      323,994

  3a.  Balance in the Class A Interest Funding Account  ......$    4,946,615

  3b   Balance in the Class B Interest Funding Account  ......$      323,994

  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.

                                       66
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1998-7
                    For the Due Period Ending May 25, 1999

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

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   .................$    4,946,615

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      323,994

   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  ......$    4,946,615

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      323,994

   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 1998-7
                    For the Due Period Ending May 25, 1999

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

    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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       68
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 CITIBANK CREDIT CARD MASTER TRUST I SERIES 1998-9
                    For the Due Period Ending May 25, 1999

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

    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 1998-9 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 1998-9
   -----------------------------------

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

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

  2a.  Class A Monthly Interest ..............................$    3,312,500

  2b.  Class B Monthly Interest ..............................$      222,000

  3a.  Balance in the Class A Interest Funding Account  ......$   19,102,083

  3b   Balance in the Class B Interest Funding Account  ......$    1,280,200

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 1998-9
                    For the Due Period Ending May 25, 1999

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

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 1998-9
                    For the Due Period Ending May 25, 1999

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

    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 1998-9 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 June 7 , 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       71
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I, Series 1999-1
                    For the Due Period Ending May 25, 1999

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

    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 1999-1 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 1999-1
   -----------------------------------

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

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

  2a.  Class A Monthly Interest ..............................$    3,437,500

  2b.  Class B Monthly Interest ..............................$      230,000

  3a.  Balance in the Class A Interest Funding Account  ......$   13,520,833

  3b   Balance in the Class B Interest Funding Account  ......$      904,667

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 1999-1
                    For the Due Period Ending May 25, 1999

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

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 1999-1
                     For the Due Period Ending May 25, 1999

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

    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 1999-1 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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       74
CITIBANK (SOUTH DAKOTA), N.A.
                     CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                  Citibank Credit Master Trust I, Series 1999-2
                     For the Due Period Ending May 25, 1999

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

    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 1999-2 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 1999-2
   -----------------------------------

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

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

  2a.  Class A Monthly Interest ..............................$    3,671,875

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

  3a.  Balance in the Class A Interest Funding Account  ......$   13,096,354

  3b   Balance in the Class B Interest Funding Account  ......$      877,400

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 Master Trust I, Series 1999-2
                    For the Due Period Ending May 25, 1999

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

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.

                                       76
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Master Trust I, Series 1999-2
                    For the Due Period Ending May 25, 1999

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

    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 1999-2 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 June 10, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       77
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card MasterTrust I Series 1999-3
                    For the Due Period Ending May 25, 1999

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

    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 1999-3 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 1999-3
   -----------------------------------

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

  1b.  Class B Invested Amount         .......................$   80,000,000

  2a.  Class A Monthly Interest ..............................$    5,092,813

  2b.  Class B Monthly Interest ..............................$      338,829

  3a.  Balance in the Class A Interest Funding Account  ......$   14,224,753

  3b   Balance in the Class B Interest Funding Account  ......$      946,384

  4a.  Available Cash Collateral Amount  .....................$   79,800,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 MasterTrust I Series 1999-3
                    For the Due Period Ending May 25, 1999

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

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   .................$   14,224,753

   1b. The total amount of the distribution to Class B
       Certificateholders On the Payment Date   .................$      946,384

   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  ......$   14,224,753

   3b. The amount of the distribution set forth in item 1(b) above
       in respect of interest on the Class B Certificates  ......$      946,384

   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 MasterTrust I Series 1999-3
                    For the Due Period Ending May 25, 1999

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

    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 1999-3 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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       80
CITIBANK (SOUTH DAKOTA), N.A.
                    CITIBANK (NEVADA), NATIONAL ASSOCIATION

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

                 Citibank Credit Card Master Trust I Series 1999-5
                    For the Due Period Ending May 25, 1999

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

    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 1999-5 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 1999-5
   -----------------------------------

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

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

  2a.  Class A Monthly Interest ..............................$    4,193,750

  2b.  Class B Monthly Interest ..............................$      277,200

  3a.  Balance in the Class A Interest Funding Account  ......$    4,193,750

  3b   Balance in the Class B Interest Funding Account  ......$      277,200

  4a.  Available Cash Collateral Amount  .....................$   47,880,000

  4b.  Percent of Class B Invested Amount          ...........        99.75%

  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 1999-5
                    For the Due Period Ending May 25, 1999

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

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 1999-5
                    For the Due Period Ending May 25, 1999

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

    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 1999-5 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 June 15, 1999

           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 7th day of
                 June 1999

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

                                By: /s/ Susan Sexton
                                        Name:    Susan Sexton
                                        Title:   Servicing Officer

                                       83
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: June 10, 1999

                                       84