S&P Global Ratings assigned its 'A-1' short-term rating to District of Columbia's series 2019 general obligation (GO) commercial paper (CP) bond anticipation notes. The CP rating reflects the issuer credit rating on Barclays Bank PLC, the letter of credit (LOC) provider. The LOC fully supports all note payment obligations. The CP program has an authorized $500 million of 2019 notes with a maximum maturity of 150 days. The CP notes' aggregate amount and accrued interest due on each series cannot exceed the respective LOC's stated amount, and amounts due on each notes' maturity date will be funded with money available under the LOC. When evaluating CP notes, we consider various risk factors. The LOC covers 150 days' interest accruals at