Standard&Poor's Ratings Services assigned its 'AA+' rating to Denver City and County, Colo.'s series 2012A (tax-exempt) and 2012B (taxable) refunding certificates of participation (COPs). Standard&Poor's also affirmed its 'AAA' rating on the city's general obligation (GO) bonds outstanding. Finally, Standard&Poor's affirmed its 'AA+' rating and underlying rating (SPUR) on various city COPs and lease-secured obligations. The outlook is stable. The short-term rating change to 'A-1' from 'A-1+' on Denver's series 2008A1, 2008A2, and 2008A3 COPs reflects the rating change on JPMorgan Chase Bank N.A. The ratings reflect our view of Denver's: Position as the center of a large and diverse metropolitan economy that serves as a regional trade and employment center, Steady maintenance of