Standard&Poor's Ratings Services assigned its 'AA+' rating to Denver City and County's series 2015A certificates of participation (COPs). In addition, Standard&Poor's affirmed its 'AAA' rating on the city's GO bonds outstanding. Finally, Standard&Poor's affirmed its 'AA+' rating and underlying rating (SPUR) on various city certificates of participation (COPs) and lease-secured obligations. The outlook is stable. The COPs represent an interest in base rentals to be made by the city for the use and occupancy of certain leased premises. The city's lease revenue bonds are secured by lease payments to be made by the city for the use and occupancy of certain leased premises. The city's COPs and lease payments are subject to annual appropriation