Standard&Poor's Ratings Services affirmed its 'AAA' rating on Southern California Home Financing Authority's single-family mortgage revenue bonds series 2001C-1B and 2001C-TB. The bonds are secured by Ginnie Mae mortgage-backed securities and Fannie Mae pass-through certificates. The rating continues to reflect: The sufficiency of revenues from mortgage debt service payments and investment earnings to pay full and timely debt service on the bonds until maturity; Extremely strong investment quality; and An asset-to-liability ratio of 143.54%% as of Aug. 21, 2008. The rating reflects the strong credit quality of the assets and credit support underlying the issue. The assets consist of Ginnie Mae guaranteed mortgage-backed securities and Fannie Mae pass-through certificates, which are 'AAA' eligible under Standard&Poor's rating