UNITED STATES
                       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): March 15, 2005

                      CHASE BANK, USA NATIONAL ASSOCIATION
                     on behalf of the Chase USA Master Trust
                  (formerly known as "Providian Master Trust")
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

                                       333-55817
         United States                 333-39856                 22-2382028
--------------------------------   ---------------------     -------------------
  (State or other jurisdiction         (Commission              (IRS Employer
       of incorporation)               File Number)          Identification No.)

White Clay Center, Building 200, Newark, DE                  19711
-----------------------------------------------------------------------
(Address of principal executive offices)                   (Zip Code)

Registrant's telephone number, including area code: (302) 575-5000

--------------------------------------------------------------
(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

|_|   Written communications pursuant to Rule 425 under the Securities Act (17
      CFR 230.425)

|_|   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)

|_|   Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

|_|   Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))
<PAGE>

Section 8 - Other Events

Item 8.01 Other Events.

Chase USA Master Trust is the issuer of a number of outstanding series of asset
backed securities.

On or about March 15, 2005, Chase Bank USA, National Association (f/k/a Chase
Manhattan Bank USA, National Association) ("Chase USA") distributed monthly
payments to the holders of the Chase USA Master Trust Series 2000-1 and Series
2000-2. Chase USA furnished copies of monthly certificateholders' reports for
each of those series as required by the Pooling and Servicing Agreement. Copies
of those monthly certificateholders' reports are being filed as an exhibit to
this current report on Form 8-K.

The Office of the Comptroller of the Currency ("OCC") has recently provided new
interpretive guidance to Chase USA and other OCC regulated banks that will
result in an increase in the minimum payments due on a portion of the accounts
in Chase USA's servicing portfolio when fully implemented by Chase USA. The OCC
guidance is intended to be responsive to concerns raised by the Federal
Financial Institutions Examination Council that minimum payment requirements
currently used by credit card lenders increase credit risk and mask portfolio
quality and that credit card lenders ought to require minimum payments that
amortize outstanding account balances over a reasonable period of time.

Chase USA expects to implement the increased minimum payment requirement in
stages commencing in the third quarter of 2005 with full implementation expected
by the end of the first quarter of 2006. Chase USA expects that such change in
the minimum payment requirement is likely to result in an increase in
delinquencies and charge-offs in the accounts in the Chase USA Master Trust,
although Chase USA cannot predict with any degree of certainty the effect of any
such increase.

Section 9 - Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

(c) Exhibits.

Exhibit No.    Description
-----------    -----------

  99.1         Monthly Reports with respect to the March 15, 2005 distribution.
<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.

                                     CHASE USA MASTER TRUST

                                     By: CHASE BANK USA,
                                     NATIONAL ASSOCIATION, as Servicer


                                     By: /s/ Patricia M. Garvey
                                         ---------------------------------
                                     Name: Patricia M. Garvey
                                     Title: Vice President
                                     Date: March 18, 2005
<PAGE>

                                INDEX TO EXHIBITS

Exhibit No.   Description
-----------   -----------

 99.1         Monthly Reports with respect to the distribution to
              certificateholders on March 15, 2005.
{"company-data": {"conformed-name": "PROVIDIAN MASTER TRUST", "cik": "0000899290", "assigned-sic": "6189", "irs-number": "020118519", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-22305", "film-number": "05700118"}, "business-address": {"street1": "201 MISSION STREET", "city": "SAN FRANCISCO", "state": "CA", "zip": "94105", "phone": "6032864348"}, "mail-address": {"street1": "295 MAIN ST", "city": "TILTON", "state": "NH", "zip": "03276"}, "former-company": {"former-conformed-name": "FIRST DEPOSIT MASTER TRUST", "date-changed": "19950629"}}
UNITED STATES
                       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): March 15, 2005

                      CHASE BANK, USA NATIONAL ASSOCIATION
                     on behalf of the Chase USA Master Trust
                  (formerly known as "Providian Master Trust")
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

                                       333-55817
         United States                 333-39856                 22-2382028
--------------------------------   ---------------------     -------------------
  (State or other jurisdiction         (Commission              (IRS Employer
       of incorporation)               File Number)          Identification No.)

White Clay Center, Building 200, Newark, DE                  19711
-----------------------------------------------------------------------
(Address of principal executive offices)                   (Zip Code)

Registrant's telephone number, including area code: (302) 575-5000

--------------------------------------------------------------
(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):

|_|   Written communications pursuant to Rule 425 under the Securities Act (17
      CFR 230.425)

|_|   Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR
      240.14a-12)

|_|   Pre-commencement communications pursuant to Rule 14d-2(b) under the
      Exchange Act (17 CFR 240.14d-2(b))

|_|   Pre-commencement communications pursuant to Rule 13e-4(c) under the
      Exchange Act (17 CFR 240.13e-4(c))
Section 8 - Other Events

Item 8.01 Other Events.

Chase USA Master Trust is the issuer of a number of outstanding series of asset
backed securities.

On or about March 15, 2005, Chase Bank USA, National Association (f/k/a Chase
Manhattan Bank USA, National Association) ("Chase USA") distributed monthly
payments to the holders of the Chase USA Master Trust Series 2000-1 and Series
2000-2. Chase USA furnished copies of monthly certificateholders' reports for
each of those series as required by the Pooling and Servicing Agreement. Copies
of those monthly certificateholders' reports are being filed as an exhibit to
this current report on Form 8-K.

The Office of the Comptroller of the Currency ("OCC") has recently provided new
interpretive guidance to Chase USA and other OCC regulated banks that will
result in an increase in the minimum payments due on a portion of the accounts
in Chase USA's servicing portfolio when fully implemented by Chase USA. The OCC
guidance is intended to be responsive to concerns raised by the Federal
Financial Institutions Examination Council that minimum payment requirements
currently used by credit card lenders increase credit risk and mask portfolio
quality and that credit card lenders ought to require minimum payments that
amortize outstanding account balances over a reasonable period of time.

Chase USA expects to implement the increased minimum payment requirement in
stages commencing in the third quarter of 2005 with full implementation expected
by the end of the first quarter of 2006. Chase USA expects that such change in
the minimum payment requirement is likely to result in an increase in
delinquencies and charge-offs in the accounts in the Chase USA Master Trust,
although Chase USA cannot predict with any degree of certainty the effect of any
such increase.

Section 9 - Financial Statements and Exhibits

Item 9.01 Financial Statements and Exhibits.

(c) Exhibits.

Exhibit No.    Description
-----------    -----------

  99.1         Monthly Reports with respect to the March 15, 2005 distribution.
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.

                                     CHASE USA MASTER TRUST

                                     By: CHASE BANK USA,
                                     NATIONAL ASSOCIATION, as Servicer

                                     By: /s/ Patricia M. Garvey
                                         ---------------------------------
                                     Name: Patricia M. Garvey
                                     Title: Vice President
                                     Date: March 18, 2005
INDEX TO EXHIBITS

Exhibit No.   Description
-----------   -----------

 99.1         Monthly Reports with respect to the distribution to
              certificateholders on March 15, 2005.