Standard&Poor's Ratings Services affirmed its 'A+/A-1' rating on District of Columbia's series A pooled loan program revenue bonds, due to the bank facility being extended to Aug. 15, 2012. The long-term and short-term components of the rating are based on Bank of America N.A. Criteria: Methodology And Assumptions: Approach To Evaluating Letter Of Credit-Supported Debt, July 6, 2009