Our analysis is the first to map the air quality and related health benefits for an 80×30 CES. The results show that they are widely distributed across all states in the coterminous U.S. and that the illustrative 80×30 CES has the largest total benefits, climate-related net benefits, and health benefits of eight policies examined. The present value of the estimated climate benefits through 2050 ($637 billion) outweigh the estimated costs ($342 billion).