S&P Global Ratings assigned its 'AA+' long-term rating to the Contra Costa Transportation Authority, Calif.'s series 2017A limited tax bonds. At the same time, S&P Global Ratings affirmed its 'AA+' long-term rating on the authority's existing parity sales tax bonds. The outlook is stable. The rating reflects our view of the authority's: Strong maximum annual debt service (MADS) coverage of 1.85x and pro forma annual debt service coverage of about 2.4x, Strong 1.75x additional bonds test (ABT), and A broad and diverse economic base firmly integrated into the San Francisco Bay Area metropolitan area. The bonds are limited obligations of the authority payable from the authority's 0.5% retail sales and use tax (Measure J), authorized by voters through March 31,
