June 1, 2017 2017-XF0547 District of Columbia series 2017A general obligation refunding bonds JPMorgan Chase Bank N.A. FMSbonds Inc. JPMorgan Securities LLC S&P Global Ratings assigned the above-mentioned ratings to the floater and residual receipts (collectively the receipts), reflecting S&P Global Ratings' opinion of the likelihood the trust will have sufficient assets to pay timely interest and full principal when due on the receipts. Trust assets include all distributions of principal; interest; and premiums, if any, from the underlying securities and the liquidity facility, which is in place to support tender payments on the floaters. The long-term component of our rating on the floaters reflects the ratings on the underlying securities and addresses full and timely interest and principal payments