S&P Global Ratings' ratings on the St. Louis Regional Airport Authority, Ill.'s general obligation (GO) airport bonds and GO debt certificates is 'A'. The outlook is stable. Debt service on the GO bonds is payable from unlimited ad valorem property taxes. The debt certificates are GOs of the authority, payable from legally available funds without a dedicated debt-service levy. We rate this non ad valorem debt at the same level as the GO bonds because of our view of the availability of the authority's resources and the authority's ability to manage those resources, which supports our view of its overall creditworthiness. The stable outlook reflects S&P Global Ratings' expectation that the authority will likely continue to generate sufficient revenue from