The 'A-1+' short-term rating on Weber County, Utah's variable-rate demand hospital revenue bonds series 2000B, issued for Intermountain Health Care, has been affirmed based on the substitution of the liquidity facilities in the form of standby bond purchase agreements (SBPAs) to US Bank N.A. (AA+/A-1+) from West LB GUARANTEED (AA-/A-1+) on or about Feb. 11, 2009. Following the date of actual substitution, the short-term rating on the bonds will be based solely on the new SBPA provider. The SBPAs provide for principal of, and a maximum of, 35 days' interest on unremarketed tendered bonds. Each SBPA, which is scheduled to expire on Feb. 11, 2012, provides coverage only for bonds during the weekly and daily modes. The bonds can be