<PAGE>

                                                                     Exhibit 4.2

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                             INTERIM TRUST AGREEMENT

                                     between

                                SLM FUNDING LLC,
                                as the Depositor

                                       and

                            CHASE MANHATTAN BANK USA,
                              NATIONAL ASSOCIATION,
                    not in its individual capacity but solely
                     as the Interim Eligible Lender Trustee

                             Dated as of May 1, 2004

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

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                                TABLE OF CONTENTS

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ARTICLE I Definitions and Usage...................................................................................     1

ARTICLE II Appointment of Interim Eligible Lender Trustee.........................................................     1
     SECTION 2.1       Appointment of Interim Eligible Lender Trustee.............................................     1
     SECTION 2.2       Declaration of Trust.......................................................................     2
     SECTION 2.3       Title to Interim Trust Loans ..............................................................     2

ARTICLE III Representations and Warranties of the Depositor.......................................................     2

ARTICLE IV Authority and Duties of Interim Eligible Lender Trustee................................................     3
     SECTION 4.1       General Authority..........................................................................     3
     SECTION 4.2       General Duties.............................................................................     3
     SECTION 4.3       No Duties Except as Specified in this Agreement............................................     3
     SECTION 4.4       No Action Except Under Specified Documents.................................................     3
     SECTION 4.5       Restrictions...............................................................................     3

ARTICLE V Concerning the Interim Eligible Lender Trustee..........................................................     3
     SECTION 5.1       Acceptance of Trust and Duties.............................................................     3
     SECTION 5.2       Representations and Warranties.............................................................     4
     SECTION 5.3       Not Acting in Individual Capacity..........................................................     5
     SECTION 5.4       Interim Eligible Lender Trustee Not Liable for the Interim Trust
                       Loans......................................................................................     5

ARTICLE VI Compensation of Interim Eligible Lender Trustee........................................................     5

ARTICLE VII Termination of Interim Trust Agreement................................................................     5

ARTICLE VIII Successor Interim Eligible Lender Trustees...........................................................     6
     SECTION 8.1       Eligibility Requirements for Interim Eligible Lender Trustee...............................     6
     SECTION 8.2       Resignation or Removal of Interim Eligible Lender Trustee..................................     6
     SECTION 8.3       Successor Interim Eligible Lender Trustee..................................................     7
     SECTION 8.4       Merger or Consolidation of Interim Eligible Lender Trustee.................................     7

ARTICLE IX Miscellaneous..........................................................................................     7
     SECTION 9.1       Supplements and Amendments. ...............................................................     7
     SECTION 9.2       Notices....................................................................................     8
     SECTION 9.3       Severability...............................................................................     8
     SECTION 9.4       Separate Counterparts......................................................................     8
     SECTION 9.5       Successors and Assigns.....................................................................     8
     SECTION 9.6       Headings...................................................................................     8
     SECTION 9.7       Governing Law..............................................................................     9
</TABLE>

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                             INTERIM TRUST AGREEMENT

         INTERIM TRUST AGREEMENT (the "Agreement"), dated as of May 1, 2004,
between SLM FUNDING LLC, a Delaware limited liability company (the "Depositor"),
and CHASE MANHATTAN BANK USA, NATIONAL ASSOCIATION, a national banking
association, not in its individual capacity but solely as Interim Eligible
Lender Trustee (the "Interim Eligible Lender Trustee").

         WHEREAS, the Depositor is a limited liability company established for
the purpose of purchasing Loans from the Student Loan Marketing Association,
among others, for immediate resale to special purpose trusts established for the
purpose of financing the purchase of such Loans;

         WHEREAS, the Depositor has entered into a Purchase Agreement with the
Student Loan Marketing Association and a Sale Agreement with SLM Student Loan
Trust 2004-4 for the purpose of effecting such purchase and resale; and

         WHEREAS, the Interim Eligible Lender Trustee is an "eligible lender"
within the meaning of Section 435(d) of the Higher Education Act and is willing
to hold legal title to such Loans (collectively, the "Interim Trust Loans") on
behalf and for the benefit of the Depositor.

         NOW, THEREFORE, the Depositor and the Interim Eligible Lender Trustee
hereby agree as follows:

                                    ARTICLE I

                              DEFINITIONS AND USAGE

                  Except as otherwise specified herein or as the context may
otherwise require, capitalized terms used but not otherwise defined herein are
defined in Appendix A-1 hereto, which also contains rules as to usage that shall
be applicable herein.

                                   ARTICLE II

                 APPOINTMENT OF INTERIM ELIGIBLE LENDER TRUSTEE

         SECTION 2.1 APPOINTMENT OF INTERIM ELIGIBLE LENDER TRUSTEE. The
Depositor hereby appoints the Interim Eligible Lender Trustee, effective as of
the date hereof, as trustee, to have all the rights, powers and duties set forth
herein, including, without limitation:

         a.       To hold legal title to the Interim Trust Loans on behalf and
                  for the benefit of the Depositor;

         b.       To enter into and perform its obligations as the Interim
                  Eligible Lender Trustee under the Purchase Agreement, the Sale
                  Agreement and this Agreement; and

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         c.       To engage in those activities, including entering into
                  agreements, that are necessary, suitable or convenient to
                  accomplish the foregoing or are incidental thereto or
                  connected therewith.

         SECTION 2.2 DECLARATION OF TRUST. The Interim Eligible Lender Trustee
hereby declares that it will hold the Interim Trust Loans in trust upon and
subject to the conditions set forth herein for the use and benefit of the
Depositor, subject to the obligations of the Interim Eligible Lender Trustee
under the Purchase Agreement and the Sale Agreement. Effective as of the date
hereof, the Interim Eligible Lender Trustee shall have all rights, powers and
duties set forth herein with respect to accomplishing the purposes of this
Agreement.

         SECTION 2.3 TITLE TO INTERIM TRUST LOANS. Legal title to all of the
Interim Trust Loans shall be vested at all times in the Interim Eligible Lender
Trustee on behalf of and for the benefit of the Depositor.

                                  ARTICLE III

                 REPRESENTATIONS AND WARRANTIES OF THE DEPOSITOR

                  The Depositor hereby represents and warrants to the Interim
Eligible Lender Trustee that:

         1.       It is duly organized and validly existing as a Delaware
                  limited liability company in good standing under the laws of
                  the State of Delaware, with power and authority to own its
                  properties and to conduct its business as such properties are
                  currently owned and such business is presently conducted.

         2.       It has all necessary power and authority to execute and
                  deliver this Agreement and to carry out its terms; and the
                  execution, delivery and performance of this Agreement has been
                  duly authorized by the Depositor by all necessary action.

         3.       This Agreement constitutes a legal, valid and binding
                  obligation of the Depositor enforceable in accordance with its
                  terms, subject to applicable bankruptcy, insolvency,
                  reorganization and similar laws relating to creditors' rights
                  generally and subject to general principles of equity.

         4.       The consummation of the transactions contemplated by this
                  Agreement and the fulfillment of the terms hereof do not
                  conflict with, result in any breach of any of the terms and
                  provisions of, or constitute (with or without notice or lapse
                  of time or both) a default under, the certificate of formation
                  or limited liability company operating agreement of the
                  Depositor, or any indenture, agreement or other instrument to
                  which the Depositor is a party or by which it is bound; nor
                  result in the creation or imposition of any Lien upon any of
                  its properties pursuant to the terms of any such indenture,
                  agreement or other instrument (other than as contemplated by
                  the Basic Documents); nor violate any law or any order, rule
                  or regulation applicable to the Depositor of any court or of
                  any Federal or state

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                  regulatory body, administrative agency or other governmental
                  instrumentality having jurisdiction over the Depositor or its
                  properties.

                                   ARTICLE IV

             AUTHORITY AND DUTIES OF INTERIM ELIGIBLE LENDER TRUSTEE

         SECTION 4.1 GENERAL AUTHORITY. The Interim Eligible Lender Trustee is
authorized and directed to execute and deliver the Purchase Agreement, the Sale
Agreement and this Agreement and each certificate or other document attached as
an exhibit to or contemplated by such agreements, in each case, in such form as
the Depositor shall approve as evidenced conclusively by the Interim Eligible
Lender Trustee's execution thereof. The Interim Eligible Lender Trustee is also
authorized and directed on behalf and for the benefit of the Depositor to
acquire and hold legal title to the Interim Trust Loans and to take all actions
required of the Interim Eligible Lender Trustee pursuant to the Purchase
Agreement, the Sale Agreement and this Agreement.

         SECTION 4.2 GENERAL DUTIES. It shall be the duty of the Interim
Eligible Lender Trustee to discharge (or cause to be discharged) all its
responsibilities as the Interim Eligible Lender Trustee pursuant to the terms of
the Purchase Agreement, the Sale Agreement and this Agreement.

         SECTION 4.3 NO DUTIES EXCEPT AS SPECIFIED IN THIS AGREEMENT. The
Interim Eligible Lender Trustee shall not have any duty or obligation to manage,
make any payment with respect to, register, record, sell, service, dispose of or
otherwise deal with the Interim Trust Loans, or to otherwise take or refrain
from taking any action under, or in connection with, any document contemplated
hereby to which the Interim Eligible Lender Trustee is a party, except as
expressly provided by the terms of the Purchase Agreement, the Sale Agreement or
this Agreement; and no implied duties or obligations shall be read into this
Agreement, the Purchase Agreement or the Sale Agreement against the Interim
Eligible Lender Trustee.

         SECTION 4.4 NO ACTION EXCEPT UNDER SPECIFIED DOCUMENTS. The Interim
Eligible Lender Trustee shall not otherwise deal with the Interim Trust Loans
except in accordance with the powers granted to and the authority conferred upon
the Interim Eligible Lender Trustee pursuant to this Agreement, the Purchase
Agreement and the Sale Agreement.

         SECTION 4.5 RESTRICTIONS. The Interim Eligible Lender Trustee shall not
take any action that is inconsistent with the purposes of the Trust set forth in
the Basic Documents.

                                    ARTICLE V

                 CONCERNING THE INTERIM ELIGIBLE LENDER TRUSTEE

         SECTION 5.1 ACCEPTANCE OF TRUST AND DUTIES. The Interim Eligible Lender
Trustee accepts the trust hereby created and agrees to perform its duties
hereunder with respect to such trust but only upon the terms of this Agreement.
The Interim Eligible Lender Trustee

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shall not be answerable or accountable hereunder or under the Purchase Agreement
or the Sale Agreement under any circumstances, except (i) for its own willful
misconduct or negligence or (ii) in the case of the inaccuracy of any
representation or warranty contained in Section 5.2 below expressly made by the
Interim Eligible Lender Trustee. In particular, but not by way of limitation
(and subject to the exceptions set forth in the preceding sentence):

         1.       The Interim Eligible Lender Trustee shall not be liable for
                  any error of judgment made by a responsible officer of the
                  Interim Eligible Lender Trustee.

         2.       No provision of this Agreement, the Purchase Agreement or the
                  Sale Agreement shall require the Interim Eligible Lender
                  Trustee to expend or risk funds or otherwise incur any
                  financial liability in the performance of any of its rights or
                  powers hereunder or under the Purchase Agreement or the Sale
                  Agreement, if the Interim Eligible Lender Trustee shall have
                  reasonable grounds for believing that repayment of such funds
                  or adequate indemnity against such risk or liability is not
                  reasonably assured or provided to it.

         3.       The Interim Eligible Lender Trustee shall not be responsible
                  for or in respect of the validity or sufficiency of this
                  Agreement or for the due execution hereof by the Depositor or
                  for the form, character, genuineness, sufficiency, value or
                  validity of any of the Interim Trust Loans or for or in
                  respect of the validity or sufficiency of the Purchase
                  Agreement or the Sale Agreement.

         SECTION 5.2 REPRESENTATIONS AND WARRANTIES. The Interim Eligible Lender
Trustee hereby represents and warrants to the Depositor that:

         1.       It is duly organized and validly existing in good standing
                  under the laws of its governing jurisdiction and has an office
                  located within the State of Delaware, at which it will act as
                  trustee for the Trust. It has all requisite power and
                  authority to execute, deliver and perform its obligations
                  under the Purchase Agreement, the Sale Agreement and this
                  Agreement.

         2.       It has taken all action necessary to authorize the execution
                  and delivery by it of the Purchase Agreement, the Sale
                  Agreement and this Agreement, and the Purchase Agreement, the
                  Sale Agreement and this Agreement have been executed and
                  delivered by one of its officers who is duly authorized to
                  execute and deliver the same on its behalf.

         3.       Neither the execution nor the delivery by it of the Purchase
                  Agreement, the Sale Agreement or this Agreement, nor the
                  consummation by it of the transactions contemplated thereby or
                  hereby nor compliance by it with any of the terms or
                  provisions thereof or hereof will contravene any Federal or
                  Delaware state law, governmental rule or regulation governing
                  the banking or trust powers of the Interim Eligible Lender
                  Trustee or any judgment or order binding on it, or constitute
                  any default under its charter documents or by-laws or any
                  indenture, mortgage, contract, agreement or instrument to
                  which it is a party or by which any

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                  of its properties may be bound.

         4.       It is and will maintain its status as an "eligible lender" (as
                  such term is defined in Section 435(d) of the Higher Education
                  Act) for purposes of holding legal title to the Interim Trust
                  Loans as contemplated by this Agreement, the Purchase
                  Agreement and the Sale Agreement.

         SECTION 5.3 NOT ACTING IN INDIVIDUAL CAPACITY. Except as provided in
this Article V, in accepting the trust hereby created, Chase Manhattan Bank USA,
National Association acts solely as Interim Eligible Lender Trustee hereunder
and not in its individual capacity.

         SECTION 5.4 INTERIM ELIGIBLE LENDER TRUSTEE NOT LIABLE FOR THE INTERIM
TRUST LOANS. The Interim Eligible Lender Trustee makes no representations as to
the validity or sufficiency of this Agreement, the Purchase Agreement or the
Sale Agreement, or of any Interim Trust Loan or related documents. The Interim
Eligible Lender Trustee shall at no time have any responsibility for or with
respect to the sufficiency of the Interim Trust Loans; the validity or
completeness of the assignment to the Interim Eligible Lender Trustee of legal
title to any Interim Trust Loan on behalf and for the benefit of the Depositor;
the performance or enforcement (except as expressly set forth in the Purchase
Agreement or the Sale Agreement) of any Interim Trust Loan; the compliance by
the Depositor or the Servicer with any warranty or representation made under any
Basic Document or in any related document or the accuracy of any such warranty
or representation or any action or inaction of the Administrator, the Indenture
Trustee or the Servicer or any subservicer taken in the name of the Interim
Eligible Lender Trustee.

                                   ARTICLE VI

                 COMPENSATION OF INTERIM ELIGIBLE LENDER TRUSTEE

         The Interim Eligible Lender Trustee shall receive as compensation for
its services hereunder such fees as have been separately agreed upon before the
date hereof between the Depositor and the Interim Eligible Lender Trustee, and
the Interim Eligible Lender Trustee shall be entitled to be reimbursed by the
Depositor, to the extent provided in such separate agreement, for its other
reasonable expenses hereunder.

                                  ARTICLE VII

                     TERMINATION OF INTERIM TRUST AGREEMENT

                  This Agreement (other than Article VI) and the trust created
hereby shall terminate and be of no further force or effect upon the earlier of
(i) the termination of the Trust pursuant to Section 9.1 of the Trust Agreement
and (ii) the expiration of 21 years from the death of the last survivor of the
descendants of Joseph P. Kennedy, the late Ambassador of the United States to
the Court of St. James, living on the date hereof.

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                                  ARTICLE VIII

                   SUCCESSOR INTERIM ELIGIBLE LENDER TRUSTEES

         SECTION 8.1 ELIGIBILITY REQUIREMENTS FOR INTERIM ELIGIBLE LENDER
TRUSTEE. The Interim Eligible Lender Trustee shall at all times be a corporation
or banking association (i) qualifying as an "eligible lender" as such term is
defined in Section 435(d) of the Higher Education Act for purposes of holding
legal title to the Interim Trust Loans on behalf and for the benefit of the
Depositor, with a valid lender identification number with respect to the Interim
Trust Loans from the Department; and (ii) being authorized to exercise corporate
trust powers and hold legal title to the Interim Trust Loans. In case at any
time the Interim Eligible Lender Trustee shall cease to be eligible in
accordance with the provisions of this Section, the Interim Eligible Lender
Trustee shall resign immediately in the manner and with the effect specified in
Section 8.2.

         SECTION 8.2 RESIGNATION OR REMOVAL OF INTERIM ELIGIBLE LENDER TRUSTEE.
The Interim Eligible Lender Trustee may at any time resign and be discharged
from the trust hereby created by giving written notice thereof to the Depositor.
Upon receiving such notice of resignation, the Depositor shall promptly appoint
a successor Interim Eligible Lender Trustee meeting the eligibility requirements
of Section 8.1 by written instrument, in duplicate, one copy of which instrument
shall be delivered to the resigning Interim Eligible Lender Trustee and one copy
to the successor Interim Eligible Lender Trustee. If no successor Interim
Eligible Lender Trustee shall have been so appointed and have accepted
appointment within 30 days after the giving of such notice of resignation, the
resigning Interim Eligible Lender Trustee may petition any court of competent
jurisdiction for the appointment of a successor Interim Eligible Lender Trustee;
provided, however, that such right to appoint or to petition for the appointment
of any such successor shall in no event relieve the resigning Interim Eligible
Lender Trustee from any obligations otherwise imposed on it under this
Agreement, the Purchase Agreement or the Sale Agreement until such successor has
in fact assumed such appointment.

         If at any time the Interim Eligible Lender Trustee shall cease to be or
shall be likely to cease to be eligible in accordance with the provisions of
Section 8.1 and shall fail to resign after written request therefor by the
Depositor, then the Depositor may remove the Interim Eligible Lender Trustee. If
the Depositor shall remove the Interim Eligible Lender Trustee under the
authority of the immediately preceding sentence, the Depositor shall promptly
appoint a successor Interim Eligible Lender Trustee by written instrument, in
duplicate, one copy of which instrument shall be delivered to the outgoing
Interim Eligible Lender Trustee so removed and one copy to the successor Interim
Eligible Lender Trustee together with payment of all fees owed to the outgoing
Interim Eligible Lender Trustee.

         Any resignation or removal of the Interim Eligible Lender Trustee and
appointment of a successor Interim Eligible Lender Trustee pursuant to any of
the provisions of this Section shall not become effective until acceptance of
appointment by the successor Interim Eligible Lender Trustee pursuant to Section
8.3 and payment of all fees and expenses owed to the outgoing Interim Eligible
Lender Trustee.

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         SECTION 8.3 SUCCESSOR INTERIM ELIGIBLE LENDER TRUSTEE. Any successor
Interim Eligible Lender Trustee appointed pursuant to Section 8.2 shall execute,
acknowledge and deliver to the Depositor and to its predecessor Interim Eligible
Lender Trustee an instrument accepting such appointment under this Agreement,
and thereupon the resignation or removal of the predecessor Interim Eligible
Lender Trustee shall become effective and such successor Interim Eligible Lender
Trustee, without any further act, deed or conveyance, shall become fully vested
with all the rights, powers, duties and obligations of its predecessor under
this Agreement, with like effect as if originally named as Interim Eligible
Lender Trustee. The predecessor Interim Eligible Lender Trustee shall upon
payment of its fees and expenses deliver to the successor Interim Eligible
Lender Trustee all documents, statements, moneys and properties held by it under
this Agreement and shall assign, if permissible, to the successor Interim
Eligible Lender Trustee any lender identification number obtained from the
Department with respect to the Interim Trust Loans; and the Depositor and the
predecessor Interim Eligible Lender Trustee shall execute and deliver such
instruments and do such other things as may reasonably be required for fully and
certainly vesting and confirming in the successor Interim Eligible Lender
Trustee all such rights, powers, duties and obligations.

         No successor Interim Eligible Lender Trustee shall accept such
appointment as provided in this Section unless at the time of such acceptance
such successor Interim Eligible Lender Trustee shall be eligible pursuant to
Section 8.1.

         SECTION 8.4 MERGER OR CONSOLIDATION OF INTERIM ELIGIBLE LENDER TRUSTEE.
Any corporation into which the Interim Eligible Lender Trustee may be merged or
converted or with which it may be consolidated, or any corporation or banking
association resulting from any merger, conversion or consolidation to which the
Interim Eligible Lender Trustee shall be a party, or any corporation succeeding
to all or substantially all the corporate trust business of the Interim Eligible
Lender Trustee, shall, without the execution or filing of any instrument or any
further act on the part of any of the parties hereto, anything herein to the
contrary notwithstanding, be the successor of the Interim Eligible Lender
Trustee hereunder; provided that such corporation or banking association shall
be eligible pursuant to Section 8.1.

                                   ARTICLE IX

                                  MISCELLANEOUS

         SECTION 9.1 SUPPLEMENTS AND AMENDMENTS. This Agreement may be amended
by the Depositor and the Interim Eligible Lender Trustee, with prior written
notice to the Rating Agencies, without the consent of any of the Noteholders, to
cure any ambiguity, to correct or supplement any provisions in this Agreement or
for the purpose of adding any provisions to or changing in any manner or
eliminating any of the provisions in this Agreement; provided, however, that
such action shall not, as evidenced by an Opinion of Counsel, adversely affect
in any material respect the interests of any Noteholder.

         This Agreement may also be amended from time to time by the Depositor
and the Interim Eligible Lender Trustee, with prior written notice to the Rating
Agencies and with the consent of the Noteholders evidencing not less than a
majority of the Outstanding Amount of the Notes, for

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the purpose of adding any provisions to or changing in any manner or eliminating
any of the provisions of this Agreement; provided, however, that no such
amendment shall reduce the aforesaid percentage of the Outstanding Amount of the
Notes required to consent to any such amendment, without the consent of all the
outstanding Noteholders.

         Promptly after the execution of any such amendment or consent, the
Interim Eligible Lender Trustee shall furnish written notification of the
substance of such amendment or consent to the Indenture Trustee and each of the
Rating Agencies.

         It shall not be necessary for the consent of the Noteholders pursuant
to this Section to approve the particular form of any proposed amendment or
consent, but it shall be sufficient if such consent shall approve the substance
thereof. The manner of obtaining such consents and of evidencing the
authorization of the execution thereof shall be subject to such reasonable
requirements as the Interim Eligible Lender Trustee may prescribe.

         Prior to the execution of any amendment to this Agreement, the Interim
Eligible Lender Trustee shall be entitled to receive and rely upon an Opinion of
Counsel stating that the execution of such amendment is authorized or permitted
by this Agreement. The Interim Eligible Lender Trustee may, but shall not be
obligated to, enter into any such amendment which affects the Interim Eligible
Lender Trustee's own rights, duties or immunities under this Agreement or
otherwise.

         SECTION 9.2 NOTICES. Unless otherwise expressly specified or permitted
by the terms hereof, all notices shall be in writing and shall be deemed given
upon receipt by the intended recipient or three Business Days after mailing if
mailed by certified mail, postage prepaid (except that notice to the Interim
Eligible Lender Trustee shall be deemed given only upon actual receipt by the
Interim Eligible Lender Trustee), if to the Interim Eligible Lender Trustee,
addressed to its Corporate Trust Office; if to the Depositor, addressed to SLM
Funding LLC, 11600 Sallie Mae Drive, MDC V1764, Reston, Virginia 20193, or, as
to each party, at such other address as shall be designated by such party in a
written notice to each other party.

         SECTION 9.3 SEVERABILITY. Any provision of this Agreement that is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

         SECTION 9.4 SEPARATE COUNTERPARTS. This Agreement may be executed by
the parties hereto in separate counterparts, each of which when so executed and
delivered shall be an original, but all such counterparts shall together
constitute but one and the same instrument.

         SECTION 9.5 SUCCESSORS AND ASSIGNS. All covenants and agreements
contained herein shall be binding upon and to the benefit of, the Depositor and
its successors and the Interim Eligible Lender Trustee and its successors, all
as herein provided.

         SECTION 9.6 HEADINGS. The headings of the various Articles and Sections
herein

                                       8
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are for convenience of reference only and shall not define or limit any of the
terms or provisions hereof.

         SECTION 9.7 GOVERNING LAW. This Agreement shall be governed by and
construed in accordance with the laws of the State of Delaware, without
reference to its conflict of law provisions, and the obligations, rights and
remedies of the parties hereunder shall be determined in accordance with such
laws.

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<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Interim Trust
Agreement to be duly executed by their respective officers hereunto duly
authorized, as of the day and year first above written.

                                          CHASE MANHATTAN BANK USA, NATIONAL
                                          ASSOCIATION,
                                          not in its individual capacity but
                                          solely as the Interim Eligible Lender
                                          Trustee

                                          By: /s/ JOHN J. CASHIN
                                              Name: John J. Cashin
                                              Title: Vice President

                                          SLM FUNDING LLC,
                                          as the Depositor

                                          By: /s/ MARK L. HELEEN
                                              Name: Mark L. Heleen
                                              Title: Vice President

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