Standard&Poor's Ratings Services assigned its 'AA+' long-term rating to Charlotte, N.C.'s series 2015B transit certificates of participation (COPs). At the same time, Standard&Poor's affirmed its 'AAA' rating on the city's existing general obligation (GO) bonds and its 'AA+' rating on the city's appropriations and general fund-backed bonds. The outlook on all the ratings is stable. The rating on the COPs reflects: The security provided by the installment financing agreement and master indenture; and Charlotte's very strong general creditworthiness The 'AAA' GO rating reflects our opinion of the city's: Strong economy, as the center of the broad and diverse Charlotte-Concord-Gastonia metropolitan statistical area (MSA); Very strong budgetary flexibility, with reserves exceeding 15% of expenditures; Strong budgetary performance