S&P Global Ratings assigned its 'AA' long-term rating to Sioux City, Iowa's series 2016A general obligation (GO) bonds, series 2016B taxable GO refunding bonds, and series 2016C GO refunding bonds. At the same time, we affirmed our 'AA' long-term rating and underlying rating (SPUR) on the city's GO bonds outstanding. The outlook is stable. A pledge of the city's full faith and credit and an agreement to levy ad valorem property taxes without limit as to rate or amount secures the 2016A, 2016B, and 2016C bonds. Bond proceeds will be used for the following purposes: Series 2016A bonds are being issued to provide funds for the city's 2016-2017 capital improvement program (CIP) and to current refund series 2006A, 2007A, and