Item 1. Business. Not Applicable. Item 1A.
Item 1A. Risk Factors. Item 1B.
Item 1B. Unresolved Staff Comments. Item 2.
Item 2. Properties. Item 3.
Item 3. Legal Proceedings. There were no legal proceedings. Item 4.
Item 4. Submission of Matters to a Vote of Security Holders. There were no matters submitted to a vote of the Security Holders. Not Applicable. Not Applicable. Not Applicable. 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. No established public trading market for the Certificates exists. 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. Not Applicable. PART II Not Applicable. Not Applicable. Not Applicable. Not Applicable. Not Applicable. Not Applicable. There are approximately holders of record as of the end of the reporting year. Fifty-seven (57) 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 Not Applicable. Not Applicable. Not Applicable. Not Applicable. Not Applicable.
SIGNATURES 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. By (Signature and Title): Date (Registrant): Credit Suisse First Boston Mortgage Securities Corp. 03-29-06 /s/ Bruce Kaiserman Bruce Kaiserman Vice President a) 1. Not Applicable. Item 15.
Item 15. Exhibits, Financial Statement Schedules. 2. Not Applicable.
3. Exhibits. b) See (a) 3 above.
c) Not Applicable. PART IV 31.1 Sarbanes-Oxley Certification
99.1 Independent Accountant's Servicing Report for the year ended December 31, 2005 99.2 Report of Management as to compliance with minimum servicing standards for the year ended December 31, 2005 99.3 Annual Statement of Compliance for the year ended December 31, 2005 a) Select Portfolio Servicing, Inc., as Servicer
b) Wells Fargo Home Mortgage, Inc., as Servicer a) Select Portfolio Servicing, Inc., as Servicer
b) Wells Fargo Home Mortgage, Inc., as Servicer a) Select Portfolio Servicing, Inc., as Servicer
b) Wells Fargo Home Mortgage, Inc., as Servicer
Exhibit Index 31.1 Sarbanes-Oxley Certification
99.1 Independent Accountant's Servicing Report for the year ended December 31, 2005 99.2 Report of Management as to compliance with minimum servicing standards for the year ended December 31, 2005 99.3 Annual Statement of Compliance for the year ended December 31, 2005 a) Select Portfolio Servicing, Inc., as Servicer
b) Wells Fargo Home Mortgage, Inc., as Servicer a) Select Portfolio Servicing, Inc., as Servicer
b) Wells Fargo Home Mortgage, Inc., as Servicer a) Select Portfolio Servicing, Inc., as Servicer
b) Wells Fargo Home Mortgage, Inc., as Servicer