The 'AAA' ratings on Southern California Home Financing Authority's single-family mortgage revenue bonds (guaranteed mortgage-backed securities program) series 2000C-1B and series 2000C-TB have been affirmed. The bonds are secured by Ginnie Mae and Fannie Mae mortgage pass-through certificates. Other rating factors include: The sufficiency of revenues from mortgage debt service payments and investment earnings to pay full and timely debt service on the bonds until maturity, Investments held pursuant to an investment agreement with 'AAA' rated Trinity Funding Co. LLC, and An asset-to-liability ratio of 102.70% as of May 13, 2003. The rating reflects the strong credit quality of the assets and credit support underlying the issue. The assets consist of Ginnie Mae and Fannie Mae guaranteed mortgage pass-through certificates,