Cars, trucks, and other on-road vehicles are major source of onshore smog-forming air pollution in our county; they are also a major source of greenhouse gases contributing to global climate change. APCD does not regulate vehicles or fuels as they are under the jurisdiction of the California Air Resources Board (CARB). APCD does address this pollution in several ways:

Land Use and Environmental Review

Land use decisions often impact transportation. The California Environmental Quality Act (CEQA) requires state and local government agencies to identify and reduce, if feasible, the significant, negative environmental impacts of land use decisions. The District has a number of responsibilities under CEQA described in more detail on our Land Use and CEQA Environmental Review webpage. 

Outreach and Incentive Programs

APCD works on cooperative outreach efforts to promote alternative transportation and fuels for cleaner air. Other pages on this site describe these programs in more detail:

Alternative Transportation Options

The APCD is the host agency for the Central Coast Clean Cities Coalition (C5), a non-profit organization with the mission of advancing use of alternative fuel vehicles and infrastructure across California’s Central Coast.


Traffic Solutions is a division of Santa Barbara County Association of Governments that encourages alternative commute choices. For more information about their work and details about upcoming alternative transportation events, such as Commuter Challenge, Bike Challenge, and CycleMAYnia.