BOSTON (Standard&Poor's) March 12, 2015--Standard&Poor's Ratings Services has assigned its 'AA+' rating and stable outlook to the Missouri Board of Public Buildings series 2015A special obligation bonds, which are secured by payments from the state that are subject to annual appropriations. At the same time, Standard&Poor's affirmed its 'AAA' rating on Missouri's general obligation (GO) bonds outstanding and its 'AA+' rating on the state's appropriation debt outstanding, with stable outlooks. "We view Missouri's diverse economy and moderate debt as key credit strengths," said Standard&Poor's credit analyst Henry Henderson. The ratings reflect Standard&Poor's assessment of the state's: Very strong budget management framework; Strong reserves in the form of a budget reserve