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): April 15, 2005

                  CHASE CREDIT CARD OWNER TRUST, SERIES 2001-4
                             (Issuer of Securities)

                      CHASE BANK USA, NATIONAL ASSOCIATION
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

        United States                333-74303-09              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 Bank USA, National Association (f/k/a Chase Manhattan Bank USA, National
Association) is the registrant of the Chase Credit Card Owner Trust, Series
2001-4 ("Series 2001-4"), which issued multiple classes of Asset Backed Notes.
On or about April 15, 2005, JPMorgan Chase Bank, as Paying Agent, made the
distributions to holders of its Notes of Series 2001-4 contemplated by the
related indenture.

A copy of the Monthly Noteholders Statement with respect to such distribution,
delivered pursuant to Section 7.3 of the related indenture, is 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 each of the First USA Master
Trust, the Chase Master Trust and the master owner 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 April 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 BANK USA,
                                      NATIONAL ASSOCIATION, as Administrator


                                      By: /s/  Patricia M. Garvey
                                      -----------------------------------------
                                      Name: Patricia M. Garvey
                                      Title:  Vice President
                                      Date: April 21, 2005

<PAGE>

                                              INDEX TO EXHIBITS


Exhibit No.       Description
-----------       -----------
   99.1           Monthly Reports with respect to the distribution to
                  Noteholders on April 15, 2005.
{"company-data": {"conformed-name": "CHASE CREDIT CARD OWNER TRUST 2001-4", "cik": "0001145632", "assigned-sic": "6189", "irs-number": "222382028", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-49643", "film-number": "05779333"}, "business-address": {"street1": "802 DELAWARE AVE", "street2": "13TH FLOOR", "city": "WILMINGTON", "state": "DE", "zip": "19801", "phone": "3025755033"}, "mail-address": {"street1": "802 DELAWARE AVE 13TH FL", "street2": "802 DELAWARE AVE 13TH FL", "city": "WILMINGTON", "state": "DE", "zip": "19801"}}
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): April 15, 2005

                  CHASE CREDIT CARD OWNER TRUST, SERIES 2001-4
                             (Issuer of Securities)

                      CHASE BANK USA, NATIONAL ASSOCIATION
             ------------------------------------------------------
             (Exact name of registrant as specified in its charter)

        United States                333-74303-09              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 Bank USA, National Association (f/k/a Chase Manhattan Bank USA, National
Association) is the registrant of the Chase Credit Card Owner Trust, Series
2001-4 ("Series 2001-4"), which issued multiple classes of Asset Backed Notes.
On or about April 15, 2005, JPMorgan Chase Bank, as Paying Agent, made the
distributions to holders of its Notes of Series 2001-4 contemplated by the
related indenture.

A copy of the Monthly Noteholders Statement with respect to such distribution,
delivered pursuant to Section 7.3 of the related indenture, is 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 each of the First USA Master
Trust, the Chase Master Trust and the master owner 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 April 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 BANK USA,
                                      NATIONAL ASSOCIATION, as Administrator

                                      By: /s/  Patricia M. Garvey
                                      -----------------------------------------
                                      Name: Patricia M. Garvey
                                      Title:  Vice President
                                      Date: April 21, 2005
INDEX TO EXHIBITS

Exhibit No.       Description
-----------       -----------
   99.1           Monthly Reports with respect to the distribution to
                  Noteholders on April 15, 2005.