S&P Global Ratings assigned its 'AAA' rating and stable outlook to Virginia Public School Authority's series 2018 special obligation school financing bonds, issued for Prince William County. At the same time, S&P Global Ratings affirmed its 'AAA' rating on the county's general obligation (GO) bonds outstanding and its 'AA+' rating on the county's appropriation-backed debt outstanding. The outlook is stable. The series 2018 bonds are secured by principal and interest payments on the local school bonds issued by Prince William County and held by the authority. The local school bonds are a general obligation of the county. The authority assigned all of its rights to receive payments on the local school bonds to the state treasurer, who will act as