The Tucson Regional Clean Cities Coalition promotes the use of clean fuels and clean-fuel vehicles in partnership with the U.S. Department of Energy's Clean Cities Program. The coalition coordinates with member jurisdictions to develop clean-fueling infrastructure, advance the understanding of the benefits of clean-fuel vehicles and work to develop Clean Corridors on interstate highways and trade routes.

The coalition meets the first month of each quarter on the third Wednesday of the month from 2 p.m. to 4 p.m.