Standard&Poor's Ratings Services confirmed its 'AA-/A-1+' rating on Iowa Finance Authority's (Mississippi Valley Regional Blood Center project) series 2003 variable-rate demand purchase revenue bonds, due to the bank facility being extended to Feb. 6, 2015. The long-term and short-term components of the rating are based on the rating on the letter of credit provider, Wells Fargo Bank N.A. Criteria: Methodology And Assumptions: Approach To Evaluating Letter Of Credit-Supported Debt, July 6, 2009