S&P Global Ratings assigned its 'AA+' long-term rating on the Board of Public Buildings, Mo.'s series A 2020 special obligation refunding bonds, issued for the state of Missouri. At the same time, S&P Global Ratings affirmed its 'AAA' long-term rating on Missouri's general obligation (GO) bonds outstanding, and its 'AA+' rating on the state's appropriation-backed debt outstanding. The outlook on all ratings is stable. The 'AA+' long-term rating on the series A 2020 bonds and the state's appropriation-backed debt outstanding is based on the application of S&P Global Ratings' "Issue Credit Ratings Linked To U.S. Public Finance Obligors? Creditworthiness" criteria (published Nov. 20, 2019). The series A 2020 special obligation refunding bonds and previously issued parity debt are secured and