Standard&Poor's Ratings Services affirmed its 'A/A-1' rating on Montgomery County Higher Education&Health Authority, Pa.'s variable-rate demand revenue bonds (Pennsylvania Higher Education&Health Loan Program) series 1997A, due to the bank facility being extended to Oct. 1, 2012. The long-term and short-term components of the rating are based on Manufacturers&Traders Trust Co. Criteria: Methodology And Assumptions: Approach To Evaluating Letter Of Credit-Supported Debt, July 6, 2009