June 21, 2018 2018-XF2616 Illinois Regional Transportation Authority's series 2018B general obligation (GO) bonds 2018-XF2617 Illinois Regional Transportation Authority's series 2018B GO bonds 2018-XF2618 Illinois Regional Transportation Authority's series 2018B GO bonds Morgan Stanley Bank N.A. FMSbonds Inc. Morgan Stanley&Co. 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