Standard&Poor's Ratings Services assigned its 'AA' long-term rating to the Portage Local Development Finance Authority, Mich.'s series 2015 tax-increment refunding bonds (taxable). At the same time, Standard&Poor's affirmed its 'AA' long-term rating and underlying rating (SPUR) on the city of Portage's GO debt and the authority's GO debt previously issued for the city. The outlook is stable. The city's full-faith-and-credit and limited ad valorem property tax GO pledge secures the payment of principal of, and interest on, the 2015 tax-increment refunding bonds. The authority has pledged tax-increment revenue, but we rate the bonds based on the GO pledge as we view it as the stronger pledge. We understand the proceeds of the bonds will be used