**WASHINGTON MUTUAL BANK********Certification Regarding Compliance with Applicable Servicing Criteria**1.Washington Mutual Bank (the "Asserting Party") is responsible for assessing compliance with the servicing criteria applicable to it under paragraph (d) of Item 1122 of Regulation AB (12 CFR part 229.1122(d)), as of and for the 12-month period ending December 31, 2007 (the "Reporting Period"), as set forth in Appendix A hereto.  The transactions covered by this  Certification are those securitizations of pools of mortgage loans that were completed on or after January 1, 2006 and prior to January 1, 2008 for which the Asserting Party performed servicing functions set forth in Item 1122(d) and that included one or more classes of publicly offered securities registered  with the Securities and Exchange Commission pursuant to the Securities Act of 1933 (the "Platform"); 2.Except as set forth in paragraph 3 below, the Asserting Party used the criteria set forth in paragraph (d) of Item 1122 of Regulation AB  (12 CFR part 229.1122(d)) to assess the compliance with the applicable servicing criteria; 3.The criteria listed in the column titled "Inapplicable Servicing Criteria" on Appendix A hereto are inapplicable to the Asserting Party based on the activities it performs, directly or through its Vendors, with respect to the Platform; 4.The Asserting Party has complied, in all material respects, with the applicable servicing criteria as of December 31, 2007 and for the Reporting Period****with respect to the Platform taken as a whole except as described on Appendix B hereto; 5.Deloitte & Touc he LLP, a registered public accounting firm, has issued an attestation report on  the Asserting Party's assessment of compliance with the applicable servicing criteria for the Reporting Period. Dated as of:  February 13, 2008  WASHINGTON MUTUAL  BANK By:   /s/ H. John Berens Name:  H. John Berens Title:    Senior Vice PresidentAPPENDIX A **SERVICING CRITERIA****APPLICABLE****SERVICING CRITERIA********INAPPLICABLE****SERVICING****CRITERIA********Reference****Criteria****Performed****Directly****by****the Asserting****Party****Performed****by****Vendor(s)****for which****the****Asserting****Party is the****Responsible****Party****Performed by subservicer(s)****or vendor(s)****for which the****Asserting****Party is NOT****the****Responsible****Party****NOT****performed by****the Asserting****Party or by****subservicer(s)****or vendor(s)****retained by the****Asserting Party****General Servicing Considerations**1122(d)(1)(i) Policies and procedures are instituted to monitor any performance or other triggers and events of default in accordance with the transaction agreements. ******X******************1122(d)(1)(ii) If any material servicing activities are outsourced to third parties, policies and procedures are instituted to monitor the third party's performance and compliance with such servicing activities.  ******X**************1122(d)(1)(iii) Any requirements in the transaction agreements to maintain a back-up servicer for the pool assets are maintained. **************X****1******1122(d)(1)(iv) A fidelity bond and errors and omissions policy is in effect on the party participating in the servicing function throughout the reporting period in the amount of coverage required by and otherwise in accordance with the terms of the transaction agreements. ******X****************Cash Collection and Administration******************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. ******X**************1122(d)(2)(ii) Disbursements made via wire transfer on behalf of an obligor or to an investor are made only by authorized personnel. ******X**************1122(d)(2)(iii) Advances of funds or guarantees regarding collections, cash flows or distributions, and any interest or other fees charged for such advances, are made, reviewed and approved as specified in the transaction agreements. ******X**************1122(d)(2)(iv) The related accounts for the transaction, such as cash reserve accounts or accounts established as a form of overcollateralization, are separately maintained (e.g., with respect to commingling of cash) as set forth in the transaction agreements. ******X**************1122(d)(2)(v) Each custodial account is maintained at a federally insured depository institution as set forth in the transaction agreements. For purposes of this criterion, "federally insured depository institution" with respect to a foreign financial institution means a foreign financial institution that meets the requirements of Rule 13k-1(b)(1) of the Securities Exchange Act. ******X**************1122(d)(2)(vi) Unissued checks are safeguarded so as to prevent unauthorized access. ******X************X******1 No transaction agreements require the Asserting Party to maintain a back-up servicer.  **SERVICING CRITERIA****APPLICABLE****SERVICING CRITERIA********INAPPLICABLE****SERVICING****CRITERIA********Reference****Criteria****Performed****Directly****by****the Asserting****Party****Performed****by****Vendor(s)****for which****the****Asserting****Party is the****Responsible****Party****Performed by subservicer(s)****or vendor(s)****for which the****Asserting****Party is NOT****the****Responsible****Party****NOT****performed by****the Asserting****Party or by****subservicer(s)****or vendor(s)****retained by the****Asserting Party**1122(d)(2)(vii) Reconciliations are prepared on a monthly basis for all asset-backed securities related bank accounts, including custodial accounts and related bank clearing accounts. These reconciliations are (A) mathematically accurate; (B) prepared within 30 calendar days after the bank statement cutoff date, or such other number of days specified in the transaction agreements; (C) reviewed and approved by someone other than the person who prepared the reconciliation; and (D) contain explanations for reconciling items. These reconciling items are resolved within 90 calendar days of their original identification, or such other number of days specified in the transaction agreements. ******X****************Investor Remittances and Reporting******************1122(d)(3)(i) Reports to investors, including those to be filed with the Commission, are maintained in accordance with the transaction agreements and applicable Commission requirements. Specifically, such reports (A) are prepared in accordance with timeframes and other terms set forth in the transaction agreements; (B) provide information calculated in accordance with the terms specified in the transaction agreements; (C) are filed with the Commission as required by its rules and regulations; and (D) agree with investors' or the trustee's records as to the total unpaid principal balance and number of pool assets serviced by the Servicer. ******X****2****************X****3******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.  ******X**************1122(d)(3)(iii) Disbursements made to an investor are posted within two business days to the Servicer's investor records, or such other number of days specified in the transaction agreements. ******X**************1122(d)(3)(iv) Amounts remitted to investors per the investor reports agree with cancelled checks, or other form of payment, or custodial bank statements. ******X****************Pool Asset Administration******************1122(d)(4)(i) Collateral or security on pool assets is maintained as required by the transaction agreements or related mortgage loan documents. ******X**************1122(d)(4)(ii) Pool asset s and related documents are safeguarded as required by the transaction agreements ******X**************2 The Asserting Party perfoms the servicing functions described in Items 1122(d)(3)(i)(A) and (B).  With regard to section (D) of criteria (3)(i), it is not the Asserting Party's practice to regularly tie-out balances to investors' or trustee's records.  Loan counts and balances are periodically reconciled upon request by a master servicer.   3 The Asserting Party does not perform the servicing function described in Item 1122(d)(3)(i)(C). **SERVICING CRITERIA****APPLICABLE****SERVICING CRITERIA********INAPPLICABLE****SERVICING****CRITERIA********Reference****Criteria****Performed****Directly****by****the Asserting****Party****Performed****by****Vendor(s)****for which****the****Asserting****Party is the****Responsible****Party****Performed by subservicer(s)****or vendor(s)****for which the****Asserting****Party is NOT****the****Responsible****Party****NOT****performed by****the Asserting****Party or by****subservicer(s)****or vendor(s)****retained by the****Asserting Party**1122(d)(4)(iii) Any additions, removals or substitutions to the asset pool are made, reviewed and approved in accordance with any conditions or requirements in the transaction agreements.  ******X**************1122(d)(4)(iv) Payments on pool assets, including any payoffs, made in accordance with the related pool asset  documents are posted to the Servicer's obligor records maintained no more than two business days after receipt, or such other number of days specified in the transaction agreements, and allocated to principal, interest or other items (e.g., escrow) in accordance with the related pool asset documents. ******X**************1122(d)(4)(v) The Servicer's records regarding the pool assets agree with the Servicer's records with respect to an obligor's unpaid principal balance. ******X**************1122(d)(4)(vi) Changes with respect to the terms or status of an obligor's  pool assets (e.g., loan modifications or re-agings) are made, reviewed and approved by authorized personnel in accordance with the transaction agreements and related pool asset documents.  ******X**************1122(d)(4)(vii) Loss mitigation or recovery actions (e.g., forbearance plans, modifications and deeds in lieu of foreclosure, foreclosures and repossessions, as applicable) are initiated, conducted and concluded in accordance with the timeframes or other requirements established by the transaction agreements. ******X**************1122(d)(4)(viii) Records documenting collection efforts are maintained during the period a pool asset is delinquent in accordance with the transaction agreements. Such records are maintained on at least a monthly basis, or such other period specified in the transaction agreements, and describe the entity's activities in monitoring delinquent pool asset s including, for example, phone calls, letters and payment rescheduling plans in cases where delinquency is deemed temporary (e.g., illness or unemployment). ******X**************1122(d)(4)(ix) Adjustments to interest rates or rates of return for pool asset s with variable rates are computed based on the related pool asset  documents. ******X**************1122(d)(4)(x) Regarding any funds held in trust for an obligor (such as escrow accounts): (A) such funds are analyzed, in accordance with the obligor's pool asset documents, on at least an annual basis, or such other period specified in the transaction agreements; (B) interest on such funds is paid, or credited, to obligors in accordance with applicable pool asset  documents and state laws; and (C) such funds are returned to the obligor within 30 calendar days of full repayment of the related pool assets, or such other number of days specified in the transaction agreements. ******X**************1122(d)(4)(xi) Payments made on behalf of an obligor (such as tax or insurance payments) are made on or before the related penalty or expiration dates, as indicated on the appropriate bills or notices for such payments, provided that such support has been received by the Servicer at least 30 calendar days prior to these dates, or such other number of days specified in the transaction agreements. ******X********X******1122(d)(4)(xii) Any late payment penalties in connection with any payment to be made on behalf of an obligor are paid from the Servicer's funds and not charged to the obligor, unless the late payment was due to the obligor's error or omission. ******X********X********SERVICING CRITERIA****APPLICABLE****SERVICING CRITERIA********INAPPLICABLE****SERVICING****CRITERIA********Reference****Criteria****Performed****Directly****by****the Asserting****Party****Performed****by****Vendor(s)****for which****the****Asserting****Party is the****Responsible****Party****Performed by subservicer(s)****or vendor(s)****for which the****Asserting****Party is NOT****the****Responsible****Party****NOT****performed by****the Asserting****Party or by****subservicer(s)****or vendor(s)****retained by the****Asserting Party**1122(d)(4)(xiii) Disbursements made on behalf of an obligor are posted within two business days to the obligor's records maintained by the Servicer, or such other number of days specified in the transaction agreements. ******X**************1122(d)(4)(xiv) Delinquencies, charge-offs and uncollectible accounts are recognized and recorded in accordance with the transaction agreements. ******X**************1122(d)(4)(xv) Any external enhancement or other support, identified in Item 1114(a)(1) through (3) or Item 1115 of Regulation AB, is maintained as set forth in the transaction agreements. ******X**************APPENDIX B**1.********Material Instances of Noncompliance by the Asserting Party**The following instances of non-compliance by the Asserting Party have been identified with respect to the following provisions of Regulation AB Item 1122(d): a. Item 1122(d)(2)(vii)(D).  Approximately 532 account reconciliations out of approximately 60,000 statements (or approximately 0.9%) with reconciling items were not resolved within 90 days of their identification, due to the migration of functions to personnel in a separate geographic location.  All such reconciling items have been resolved in the meantime and processes and procedures are in place to provide for on-going compliance with this requirement; b. Item 1122(d)(3)(i)(B) and (3)(ii).  A programming change resulted in the miscalculation of some liquidation proceeds and the  failure to include  other liquidation proceeds, in the aggregate amount of approximately $9,694,614, in the September 2007 distribution with respect to  13 securitizations sub ject to Regulation AB.  The servicer in each of the securitizations remitted the applicable shortfall amount on October 1, 2007 to the applicable Trustee as required by the applicable pooling and servicing agreement.  The programming error was corrected in October 2007; c. Item 1122(d)(3)(ii).  Prepayment fees due to investors in 16 or more securitizations subject to Regulation  AB were calculated incorrectly on certain loans with deferred interest, resulting in a shortfall in the distributions to those investors in an aggregate amount that is not expected to exceed $500,000.  In addition, the servicer has determined that under certain circumstances, the servicer's automated loan servicing system calculates the applicable interest to be used to determine prepayment premiums inconsistently with the requirements of certain mortgage loan notes, which could result in the underpayment of prepayment premiums due to certificateholders in prepayment premium classes under the terms of the applicable transaction agreements. Approximately 15 loans in 8 securitizations subject to Regulation AB have been identified  that may  have been affected in 2007. Any amounts due as the result of these miscalculations will be delivered to the applicable Trustee for distribution to the affected investors once analysis of these matters has been completed and the amounts due in the case of each securitization have been determined.   Processes and procedures are currently being implemented to provide for more accurate calculation of prepayment fees  and the servicer is  making changes to  its automated servicing system to provide for  some of the identifiedvariations in the terms of mortgage note prepayment requirements; d. Item 1122(d)(4)(vii).  With respect to 4 series of mortgage-backed securities, the servicer recently self-identified foreclosure cases initiated in connection with approximately 175 loans where the servicer did not expressly disclose the interests in the loans of the applicable trustees.  To the extent necessary under applicable law and court rules, the servicer will promptly move to amend those foreclosure pleadings.  Investors will be made whole if any direct losses or additional costs and expenses are incurred as a result of the failure to identify the interests of the trusts in the loans in any proceeding in which applicable law or court rules the trusts' interests must be disclosed.  The servicer will conduct further research and if additional loans are identified that were treated similarly, the servicer will make the applicable trusts whole if any losses arise from such treatment; and  e. Item 1122(d)(4)(xiv).    Delinquent second lien mortgage loans were not charged off at 180 days as required by the applicable pooling and servicing agreements in the case of two securitizations subject to Reg AB.  All such mortgage loans were charged off as required upon  identification of the non-compliance.  Processes and procedures have been put in place to provide for on-going compliance with this requirement.