SAN FRANCISCO (Standard&Poor's CreditWire) May 11, 2001--Standard&Poor's has assigned its double-'A' rating to Colorado Housing and Finance Authority's (CHFA) $35.46 million single-family program senior bonds series 2001B, and $18.00 million taxable single-family program senior bonds series 2001B. Standard&Poor's also assigned its single-'A'-plus rating to the authority's $2.48 million single-family program subordinate bonds series 2001B. The bonds are scheduled to sell on May 16, 2001. The outlook is stable. The rating on CHFA's Senior series 2001B single-family program bonds is based upon the following factors: - - The very high quality of the mortgage collateral, consisting primarily of FHA-insured and VA-guaranteed mortgage loans, - - A conscientious and experienced state housing finance authority overseeing the