MANAGEMENT'S ASSERTION OF COMPLIANCE

Management of the Agency and Trust division of Citibank, N.A. (or "Company")
is responsible for assessing compliance with the servicing criteria set forth
in Item 1122(d) of Regulation AB promulgated by the Securities and Exchange
Commission.

Management has determined that the servicing criteria set forth in Item
1122 (d) of Regulation AB are applicable in regard to the servicing platform
for the period as follows:

      Platform:  Publicly-issued (i.e., transaction-level reporting initially
required under the Securities Exchange Act of 1934, as amended) residential
mortgage-backed securities issued on or after January 1, 2006, for which the
Company provides the following servicing functions (the "Platform"):

       -  paying agent, securities administration and trustee; or
       -  securities administration and paying agent; or
       -  paying agent and trustee; or
       -  paying agent

      Applicable Servicing Criteria:  All servicing criteria set forth in Item
      1122(d), to the extent required by Item 1122(d) servicing criteria in
      regards to the activities performed by the Company with respect to the
      Platform as to any transaction, except for the following servicing
      criteria: 1122(d)(1)(i), 1122(d)(1)(iii),1122(d)(1)(iv), 1122(d)(2)(iii),
      1122(d)(4)(i), 1122(d)(4)(ii) and 1122(d)(4)(iv)-1122(d)(4)(xiv), which
      management has determined are not applicable to the activities the
      Company performs with respect to the Platform (the "Applicable
      Servicing Criteria").

      Period:  Twelve months ended December 31, 2007 (the "Period").

With respect to the Platform as of and for the Period, the Company's
management provides the following assertion of compliance with respect to the
Applicable Servicing Criteria:

      -  The Company's management is responsible for assessing the Company's
         compliance with the Applicable Servicing Criteria.

     -   The Company's management has assessed compliance with the Applicable
         Servicing Criteria.  In making this assessment, management used the
         criteria set forth by the Securities and Exchange Commission in
         paragraph (d) of Item 1122 of Regulation AB.

      -  Based on such assessment, other than as set forth on Appendix A
         hereto, the Company has complied, in all material respects, with the
         Applicable Servicing Criteria.

KPMG LLP, a registered public accounting firm, has issued an attestation
report with respect to the Company's compliance with the Applicable Servicing
Criteria as of and for the Period.

                              CITIBANK, N.A.

                              By:/S/Karen Montbach
                                 -----------------------------
                                    Karen Montbach
                              Its:  Managing Director


Dated: February 29, 2008





                                                                 Appendix A

                      Material Instances of Noncompliance

1.  1122(d)(2)(i) Payments on pool assets are deposited into the appropriate
    custodial bank accounts and related bank clearing accounts no more than
    two business days following receipt, or such other number of days specified
    in the transaction agreements.  With respect to certain transactions for
    which the transaction documents require that funds be deposited into the
    custodial bank accounts on the day funds are received by the Company, funds
    were not deposited to the custodial bank accounts in accordance with the
    terms of the transaction documents.  In a sample of selected payments on
    pool assets received by the Company, this finding was identified once.  In
    that instance, the funds received were deposited into the specified
    custodial account on the day after the day they were received.  As the
    one-day delay only impacted investment income to which the Company was
    entitled as compensation for its services as securities administrator,
    management believes that the delay did not affect the amount of any
    payments to any security holder or to any transaction party other than the
    Company.

2.  1122(d)(3)(ii) Amounts due to investors are allocated and remitted in
    accordance with timeframes, distribution priority and other terms set
    forth in the transaction agreements.  With respect to certain remittances
    during the reporting period, amounts due to investors were allocated and
    remitted in accordance with distribution priority and other terms set
    forth in the transaction agreements, but were not paid timely to
    investors.