S&P Global Ratings has assigned its 'AA' rating to the City of Colorado Springs, Colo.'s utilities system revenue refunding bonds series 2017A-1, 2017A-2, and 2017A-3. At the same time, S&P Global Ratings affirmed its 'AA', 'AA/A-1+', and 'AA/A-1' ratings on the system's parity debt outstanding. The outlook is stable. A pledge of net revenues of Colorado Springs Utilities' (CSU) electric, gas, water, wastewater, and streetlight systems secures the bonds. Bond proceeds will advanced refund selected maturities, take out commercial paper notes, and refund and fix series 2004A variable rate demand bonds Total debt outstanding amounted to $2.3 billion, as of fiscal year-end 2016. The 'AA' rating reflects what we consider to be the following credit strengths: Financial metrics that support