EXHIBIT 4.2


                                                                                                     EXECUTION COPY





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                                               BA CREDIT CARD TRUST

                                                     as Issuer


                                              SUPPLEMENTAL INDENTURE

                                 with respect to Additional Class B(2007-4) Notes

                                             dated as of June 22, 2007

                                                        to

                                          CLASS B(2007-4) TERMS DOCUMENT

                                             dated as of May 15, 2007

                                                        to

                                AMENDED AND RESTATED BASERIES INDENTURE SUPPLEMENT

                                             dated as of June 10, 2006

                                                        to

                                       SECOND AMENDED AND RESTATED INDENTURE

                                           dated as of October 20, 2006


                                               THE BANK OF NEW YORK

                                               as Indenture Trustee



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                                                     ARTICLE I
                              Definitions and Other Provisions of General Application

Section 1.01.     Definitions....................................................................................1

Section 1.02.     Governing Law; Submission to Jurisdiction; Agent for Service of Process........................2

Section 1.03.     Counterparts...................................................................................2

Section 1.04.     Ratification of Indenture and Indenture Supplement.............................................2

Section 1.05.     Full Force and Effect of Terms Document........................................................3

                                                    ARTICLE II
                                       The Additional Class B(2007-4) Notes

Section 2.01.     Terms and Issuance.............................................................................4

Section 2.02.     Modification of Defined Terms..................................................................4

Section 2.03.     Form of Delivery of Additional Class B(2007-4) Notes; Depository; Denominations................4

Section 2.04.     Delivery and Payment for the Additional Class B(2007-4) Notes..................................4

                                                    ARTICLE III
                                          Representations and Warranties

Section 3.01.     Issuer's Representations and Warranties........................................................5





                  THIS SUPPLEMENTAL INDENTURE WITH RESPECT TO ADDITIONAL CLASS B(2007-4) NOTES (this
"Supplemental Indenture"), by and between BA CREDIT CARD TRUST, a statutory trust created under the laws of the
State of Delaware (the "Issuer"), having its principal office at Rodney Square North, 1100 North Market Street,
Wilmington, Delaware 19890, and THE BANK OF NEW YORK, a New York banking corporation, as Indenture Trustee (the
"Indenture Trustee"), is made and entered into as of June 22, 2007 and hereby modifies and supplements the Class
B(2007-4) Terms Document (the "Terms Document") entered into by the Issuer and the Indenture Trustee as of May
15, 2007.

                  WHEREAS, the Issuer has created, pursuant to the Terms Document, a tranche of Class B Notes
known as the Class B(2007-4) Notes;

                  WHEREAS, pursuant to Section 310(a) of the Indenture, the Issuer shall issue the Additional
Class B(2007-4) Notes that shall be identical in all material respects to all other Outstanding Class B(2007-4)
Notes and will be equally and ratably entitled to the benefits of the Indenture, the Indenture Supplement and the
Terms Document as all other Outstanding Class B(2007-4) Notes without preference, priority or distinction.

                  NOW, THEREFORE, in connection with the issuance of the Additional Class B(2007-4) Notes, the
Issuer and the Indenture Trustee enter into this Supplemental Indenture.

                                                     ARTICLE I

                              Definitions and Other Provisions of General Application

                  Section 1.01.     Definitions.  For all purposes of this Supplemental Indenture, except as
otherwise expressly provided or unless the context otherwise requires:

                  (a)      the terms defined in this Article have the meanings assigned to them in this Article,
and include the plural as well as the singular;

                  (b)      all other terms used herein which are defined in the Amended and Restated BAseries
Indenture Supplement, dated as of June 10, 2006 (the "Indenture Supplement"), between the Issuer and the
Indenture Trustee, the Second Amended and Restated Indenture, dated as of October 20, 2006 (the "Indenture"),
between the Issuer and the Indenture Trustee, as acknowledged and accepted by FIA, as Servicer, or the Terms
Document, either directly or by reference therein and are not modified by Section 2.2 hereof, have the meanings
assigned to them therein;

                  (c)      all accounting terms not otherwise defined herein have the meanings assigned to them
in accordance with generally accepted accounting principles and, except as otherwise herein expressly provided,
the term "generally accepted accounting principles" with respect to any computation required or permitted
hereunder means such accounting principles as are generally accepted in the United States of America at the date
of such computation;






                  (d)      all references in this Supplemental Indenture to designated "Articles," "Sections" and
other subdivisions are to the designated Articles, Sections and other subdivisions of this Supplemental Indenture
as originally executed;

                  (e)      the words "herein," "hereof" and "hereunder" and other words of similar import refer
to this Supplemental Indenture as a whole and not to any particular Article, Section or other subdivision;

                  (f)      in the event that any term or provision contained herein shall conflict with or be
inconsistent with any term or provision contained in the Indenture Supplement, the Indenture or the Terms
Document, the terms and provisions of this Supplemental Indenture shall be controlling;

                  (g)      each capitalized term defined herein shall relate only to the Class   B(2007-4) Notes
and no other tranche of Notes issued by the Issuer; and

                  (h)      "including" and words of similar import will be deemed to be followed by "without
limitation."

                  "Additional Class B(2007-4) Notes" means the $175,000,000 principal amount Class B(2007-4)
Notes described in this Supplemental Indenture, substantially in the form set forth in Exhibit A-2 to the
Indenture Supplement, designated as a Class B(2007-4) Note and duly executed and authenticated in accordance with
the Indenture.

                  "Additional Issuance Date" means June 22, 2007.


                  Section 1.02.     Governing Law; Submission to Jurisdiction; Agent for Service of Process.  This
Supplemental Indenture shall be governed by and construed in accordance with the laws of the State of Delaware,
without regard to principles of conflict of laws.  The parties hereto declare that it is their intention that
this Supplemental Indenture shall be regarded as made under the laws of the State of Delaware and that the laws
of said State shall be applied in interpreting its provisions in all cases where legal interpretation shall be
required.  Each of the parties hereto agrees (a) that this Supplemental Indenture involves at least $100,000.00,
and (b) that this Supplemental Indenture has been entered into by the parties hereto in express reliance upon 6
DEL. C. § 2708.  Each of the parties hereto hereby irrevocably and unconditionally agrees (a) to be subject to
the jurisdiction of the courts of the State of Delaware and of the federal courts sitting in the State of
Delaware, and (b)(1) to the extent such party is not otherwise subject to service of process in the State of
Delaware, to appoint and maintain an agent in the State of Delaware as such party's agent for acceptance of legal
process, and (2) that, to the fullest extent permitted by applicable law, service of process may also be made on
such party by prepaid certified mail with a proof of mailing receipt validated by the United States Postal
Service constituting evidence of valid service, and that service made pursuant to (b)(1) or (2) above shall, to
the fullest extent permitted by applicable law, have the same legal force and effect as if served upon such party
personally within the State of Delaware.


                                                      2



                  Section 1.03.     Counterparts.  This Supplemental Indenture may be executed in any number of
counterparts, each of which so executed will be deemed to be an original, but all such counterparts will together
constitute but one and the same instrument.

                  Section 1.04.     Ratification of Indenture, Indenture Supplement and the Terms Document.  As
supplemented by this Supplemental Indenture, each of the Indenture, the Indenture Supplement and the Terms
Document is in all respects ratified and confirmed and the Indenture as so supplemented by the Indenture
Supplement as so supplemented and the Terms Document and this Supplemental Indenture shall be read, taken and
construed as one and the same instrument.

                  Section 1.05.     Full Force and Effect of Terms Document.  All terms and conditions of the
Terms Document not changed hereby shall remain in full force and effect.

                                                [END OF ARTICLE I]



                                                       3



                                                    ARTICLE II

                                       The Additional Class B(2007-4) Notes

                  Section 2.01.     Terms and Issuance.  The Additional Class B(2007-4) Notes shall be identical
in all material respects to all other Outstanding Class B(2007-4) Notes and will be equally and ratably entitled
to the benefits of the Indenture, the Indenture Supplement and the Terms Document as all other Outstanding Class
B(2007-4) Notes without preference, priority or distinction.  The Additional Class B(2007-4) Notes shall be
issued pursuant to the Indenture, the Indenture Supplement, the Terms Document and this Supplemental Indenture on
the Additional Issuance Date.

                  Section 2.02.     Modification of Defined Terms.  Upon issuance of the Additional Class
B(2007-4) Notes, all references in the Terms Document with respect to the Class B(2007-4) Notes shall include the
Additional Class B(2007-4) Notes and each of the following terms, as used in the Terms Document, shall have the
respective meanings set forth below:

                  "Controlled Accumulation Amount" means $35,416,666.67; provided, however, if the Accumulation
Period Length is determined to be less than twelve (12) months pursuant to Section 3.10(b)(ii) of the Indenture
Supplement, the Controlled Accumulation Amount shall be the amount specified in the definition of "Controlled
Accumulation Amount" in the Indenture Supplement.

                  "Initial Dollar Principal Amount" means $425,000,000.

                  "Stated Principal Amount" means $425,000,000.

                  Section 2.03.     Form of Delivery of Additional Class B(2007-4) Notes; Depository;
Denominations.

                  (a)      The Additional Class B(2007-4) Notes shall be delivered in the form of a global
Registered Note as provided in Sections 202 and 301(i) of the Indenture, respectively.

                  (b)      The Depository for the Additional Class B(2007-4) Notes shall be The Depository Trust
Company, and the Additional Class B(2007-4) Notes shall initially be registered in the name of Cede & Co., its
nominee.

                  (c)      The Additional Class B(2007-4) Notes will be issued in minimum denominations of $5,000
and multiples of $1,000 in excess of that amount.

                  Section 2.04.     Delivery and Payment for the Additional Class B(2007-4) Notes.  The Issuer
shall execute and deliver the Additional Class B(2007-4) Notes to the Indenture Trustee for authentication, and
the Indenture Trustee shall deliver the Additional Class B(2007-4) Notes when authenticated, each in accordance
with Section 303 of the Indenture.

                                              [END OF ARTICLE II]



                                                      4



                                                    ARTICLE III

                                          Representations and Warranties

                  Section 3.01.     Issuer's Representations and Warranties.  The Issuer makes the following
representations and warranties as to the Collateral Certificate on which the Indenture Trustee is deemed to have
relied in acquiring the Collateral Certificate.  Such representations and warranties speak as of the execution
and delivery of this Supplemental Indenture, but shall survive until the termination of this Supplemental
Indenture.  Such representations and warranties shall not be waived by any of the parties to this Supplemental
Indenture unless the Issuer has obtained written confirmation from each Note Rating Agency that there will be no
Ratings Effect with respect to such waiver.

                  (a)      The Indenture creates a valid and continuing security interest (as defined in the
Delaware UCC) in the Collateral Certificate in favor of the Indenture Trustee, which security interest is prior
to all other liens, and is enforceable as such as against creditors of and purchasers from the Issuer.

                  (b)      The Collateral Certificate constitutes either an "account," a "general intangible," an
"instrument," or a "certificated security," each within the meaning of the Delaware UCC.

                  (c)      At the time of the transfer and assignment of the Collateral Certificate to the
Indenture Trustee pursuant to the Indenture, the Issuer owned and had good and marketable title to the Collateral
Certificate free and clear of any lien, claim or encumbrance of any Person.

                  (d)      The Issuer has caused, within ten days of the execution of the Indenture, the filing
of all appropriate financing statements in the proper filing office in the appropriate jurisdictions under
applicable law in order to perfect the security interest in the Collateral Certificate granted to the Indenture
Trustee pursuant to the Indenture.

                  (e)      Other than the security interest granted to the Indenture Trustee pursuant to the
Indenture, the Issuer has not pledged, assigned, sold, granted a security interest in, or otherwise conveyed the
Collateral Certificate.  The Issuer has not authorized the filing of and is not aware of any financing statements
against the Issuer that include a description of collateral covering the Collateral Certificate other than any
financing statement relating to the security interest granted to the Indenture Trustee pursuant to the Indenture
or any financing statement that has been terminated.  The Issuer is not aware of any judgment or tax lien filings
against the Issuer.

                  (f)      All original executed copies of the Collateral Certificate have been delivered to the
Indenture Trustee.

                  (g)      At the time of the transfer and assignment of the Collateral Certificate to the
Indenture Trustee pursuant to the Indenture, the Collateral Certificate had no marks or notations indicating that
it has been pledged, assigned or otherwise conveyed to any Person other than the Indenture Trustee.



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                                              [END OF ARTICLE III]




                                                      6




                  IN WITNESS WHEREOF, the parties hereto have caused this Terms Document to be duly executed, all
as of the day and year first above written.


                                            BA CREDIT CARD TRUST,
                                            by BA CREDIT CARD FUNDING, LLC,
                                            as Beneficiary and not in its individual capacity


                                                     /s/ Keith W. Landis
                                            By:    ________________________________________
                                                   Keith W. Landis
                                                   Vice President



                                            THE BANK OF NEW YORK, as Indenture Trustee
                                            and not in its individual capacity


                                                     /s/ Bryon Tinnin
                                            By:    ________________________________________
                                                   Name: Bryon Tinnin
                                                   Title:   Vice President





















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