Item 1. Business. Item 1A.
Item 1A. Risk Factors. Item 1B.
Item 1B. Unresolved Staff Comments. Item 2.
Item 2. Properties. Item 3.
Item 3. Legal Proceedings. Item 4.
Item 4. Submission of Matters to a Vote of Security Holders. Omitted. Omitted. Omitted. Omitted. Omitted. None. Item 5.
Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity
Securities. Item 6.
Item 6. Selected Financial Data. Item 7.
Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operation. Item 7A.
Item 7A. Quantitative and Qualitative Disclosures About Market Risk. Item 8.
Item 8. Financial Statements and Supplementary Data. Item 9.
Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure. Item 9A.
Item 9A. Controls and Procedures. Item 9B.
Item 9B. Other Information. PART II None. Omitted. Omitted. Omitted. Omitted. Omitted. Omitted. Omitted. Item 10.
Item 10. Directors and Executive Officers of the Registrant. Item 11.
Item 11. Executive Compensation. Item 12.
Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters. Item 13.
Item 13. Certain Relationships and Related Transactions. Item 14.
Item 14. Principal Accounting Fees and Services. PART III Omitted. Omitted. Omitted. Omitted. Omitted.
SUBSTITUTE INFORMATION PROVIDED IN ACCORDANCE WITH GENERAL INSTRUCTION J(2) TO FORM 10-K. Item 1112(b) of Regulation AB. None. Item 1114(b)(2) of Regulation AB. None. Item 1117 of Regulation AB. Item 1119 of Regulation AB. None. Item 1122 of Regulation AB. Servicer Compliance Statement. Significant Obligors of Pool Assets (Financial Information). Item 1115(b) of Regulation AB. Credit Enhancement and Other Support, Except for Certain Derivatives
Instruments (Information Regarding Significant Enhancement
Providers Financial Information). Certain Derivatives Instruments (Financial Information). Legal Proceedings. Affiliations and Certain Relationships and Related Transactions. Compliance with Applicable Servicing Criteria Item 1123 of Regulation AB. The registrant knows of no material pending legal proceedings involving the entities contemplated by Item 1117 of
Regulation AB, other than routine litigation incidental to the duties of those respective parties. None. a) J.P. Morgan Trust Company, N.A, as Custodian
b) LaSalle Bank National Association, as Custodian
c) Ocwen Loan Servicing, LLC, as Servicer
d) Select Portfolio Servicing, Inc., as Special Servicer
e) The Bank of New York and The Bank of New York Trust Company, as Successor in interest to J.P.
Morgan Trust Company, as Custodian
f) U.S. Bank National Association, as Trustee
g) Wells Fargo Bank, N.A., as Custodian
h) Wilshire Credit Corporation, as Servicer a) Ocwen Loan Servicing, LLC, as Servicer
b) Select Portfolio Servicing, Inc., as Special Servicer
c) Wilshire Credit Corporation, as Servicer The 1122 statements for Wilshire Credit Corporation have disclosed the following instances of material
noncompliance: for one of the forty-five loan payoffs selected for testing, Wilshire calculated the prepayment
charge in accordance with the related mortgage note, but transposed the numbers when entering the charge into
Wilshire's system, resulting in an overcharge to the borrower. The error has been corrected and the overcharge has
been refunded to the borrower.
a) Exhibits Item 15.
Item 15. Exhibits, Financial Statement Schedules. b) Not applicable. c) Omitted. PART IV 4) 10) Incorporated by reference as Exhibit (4). 31) Rule 13a-14(d)/15d-14(d) Certifications. 33) Reports on assessment of compliance with servicing criteria for asset-backed securities. 34) Attestation reports on assessment of compliance with servicing criteria for asset-backed securities. 35) Servicer compliance statement. The Pooling and Servicing Agreement, dated as of February 1, 2006 by and among Credit Suisse First Boston
Mortgage Securities Corp., as Depositor, DLJ Mortgage Capital, Inc., as Seller, Wilshire Credit Corporation, as Servicer,
Ocwen Loan Servicing, LLC, as Servicer, Select Portfolio Servicing, Inc., as Special Servicer and U.S. Bank National
Association, as Trustee (incorporated herein by reference from Exhibit 4.1 of the Current Report on Form 8-K of the
issuing entity, as filed with the Commission on March 16, 2006). a) J.P. Morgan Trust Company, N.A, as Custodian
b) LaSalle Bank National Association, as Custodian
c) Ocwen Loan Servicing, LLC, as Servicer
d) Select Portfolio Servicing, Inc., as Special Servicer
e) The Bank of New York and The Bank of New York Trust Company, as Successor in interest to J.P.
Morgan Trust Company, as Custodian
f) U.S. Bank National Association, as Trustee
g) Wells Fargo Bank, N.A., as Custodian
h) Wilshire Credit Corporation, as Servicer a) J.P. Morgan Trust Company, N.A, as Custodian
b) LaSalle Bank National Association, as Custodian
c) Ocwen Loan Servicing, LLC, as Servicer
d) Select Portfolio Servicing, Inc., as Special Servicer
e) The Bank of New York and The Bank of New York Trust Company, as Successor in interest to J.P.
Morgan Trust Company, as Custodian
f) U.S. Bank National Association, as Trustee
g) Wells Fargo Bank, N.A., as Custodian
h) Wilshire Credit Corporation, as Servicer a) Ocwen Loan Servicing, LLC, as Servicer
b) Select Portfolio Servicing, Inc., as Special Servicer
c) Wilshire Credit Corporation, as Servicer
SIGNATURES By (Signature and Title): Date 3/29/2007 /s/ Bruce Kaiserman Bruce Kaiserman
Vice President Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this
report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) : Credit Suisse First Boston Mortgage Securities Corp.
EXHIBIT INDEX EXHIBIT DESCRIPTION Exhibit 31 Rule 13a-14(d)/15d-14(d) Certifications.
Exhibit 33 Reports on assessment of compliance with servicing criteria for asset-backed securities. Exhibit 34 Attestation reports on assessment of compliance with servicing criteria for asset-backed securities. Exhibit 35 Servicer compliance statement. a) J.P. Morgan Trust Company, N.A, as Custodian
b) LaSalle Bank National Association, as Custodian
c) Ocwen Loan Servicing, LLC, as Servicer
d) Select Portfolio Servicing, Inc., as Special Servicer
e) The Bank of New York and The Bank of New York Trust Company, as Successor in interest to J.P.
Morgan Trust Company, as Custodian
f) U.S. Bank National Association, as Trustee
g) Wells Fargo Bank, N.A., as Custodian
h) Wilshire Credit Corporation, as Servicer a) J.P. Morgan Trust Company, N.A, as Custodian
b) LaSalle Bank National Association, as Custodian
c) Ocwen Loan Servicing, LLC, as Servicer
d) Select Portfolio Servicing, Inc., as Special Servicer
e) The Bank of New York and The Bank of New York Trust Company, as Successor in interest to J.P.
Morgan Trust Company, as Custodian
f) U.S. Bank National Association, as Trustee
g) Wells Fargo Bank, N.A., as Custodian
h) Wilshire Credit Corporation, as Servicer a) Ocwen Loan Servicing, LLC, as Servicer
b) Select Portfolio Servicing, Inc., as Special Servicer
c) Wilshire Credit Corporation, as Servicer