Standard&Poor's Ratings Services assigned its 'AA/A-1+' rating to Colorado Housing&Finance Authority's (CHFA) class II series 2013B bonds under its single family mortgage bond indenture, and affirmed all ratings on outstanding class I bonds and class II bonds within the indenture. The outlook on all ratings is stable. The ratings reflect our opinion of the: Substantial overcollateralization, which exceeds 114% on the senior class I bonds and 108% on the class II bonds; Very strong credit quality of the Federal Housing Authority (FHA)-insured, conventionally insured, other insured, and uninsured mortgage loans backing the bonds; Sufficiency of reserves to cover potential credit and liquidity shortfalls; and High quality investments. Partly offsetting these strengths is our view of the