Standard&Poor's Ratings Services assigned its A+/A-1, AA+/A-1+, AA/A-1+, and AA/A-1+ ratings to District of Columbia's multimodal general obligation refunding bonds series 2008A, 2008B, 2008C, and 2008D, respectively. The ratings are based on letters of credit (LOCs) provided by Allied Irish Banks PLC and Bank of America N.A. for series 2008A and 2008B, respectively. Dexia Credit Local provided the LOC for series 2008C and 2008D. All series of bonds are variable-rate demand bonds issued initially in the weekly rate mode, but may convert to other modes. While in the weekly rate mode, the bondholders have tender options with seven-days' notice, and interest is paid monthly on the first business day of each month. The debt service and purchase price