SAN FRANCISCO (Standard&Poor's CreditWire) July 19, 2000--Standard&Poor's today assigned its triple-'A' rating to Southern California Home Finance Authority's $50 million single-family mortgage bonds series 2000B-1B and $5 million taxable single-family mortgage bonds series 2000B-TB. The bonds are scheduled to sell July 20, 2000. The rating reflects: -- The extremely high credit quality of the GNMA, Fannie Mae, and FHLMC mortgage-backed securities (MBS); -- 'AAA' rated investments; and -- Cash flow projections demonstrating sufficient revenues to meet debt service fully. The authority is issuing the bonds under a closed-lien indenture to purchase 30-year, fixed-rate MBS backed by single-family mortgages originated to low- and moderate-income residents of Los Angeles and Orange Counties. Each series matures on Nov. 1,