Association of
Bay Area Governments
Bay Area Air Quality Management District Bay Conservation and Development Commission Metropolitan Transportation Commission
Preserving the Bay Area's quality
of life through collaborative planning

One Bay Area is a joint initiative of the San Francisco Bay Area’s four main regional government agencies.

The Association of Bay Area Governments (ABAG)

In 1961 elected officials from the Bay Area’s cities, towns, and counties formed ABAG to address common issues from a regional perspective. As the council of governments for the Bay Area’s nine counties and 101 cities and towns, ABAG leads through advocacy, collaboration, planning, research and housing. It addresses regional economic, social, and environmental challenges through programs such as FOCUS, a development and conservation strategy that promotes more compact land use patterns, and the San Francisco Bay Trail Project.

The Bay Area Air Quality Management District (BAAQMD or “the Air District”)

The California Legislature created the Air District in 1955 as the first regional air pollution control agency in the country. It is the public agency entrusted with regulating stationary sources of air pollution in the nine counties that surround San Francisco Bay. The Air District monitors and enforces air quality targets and issues Spare the Air alerts when pollution levels are unhealthy.

The Bay Conservation and Development Commission (BCDC)

BCDC was created by the California Legislature in 1965 in response to broad public concern over the health of San Francisco Bay. Its mission is to protect and enhance the Bay and to encourage its responsible use. BCDC is responsible for issuing permits for most work in the Bay or within 100 feet of the shoreline, including filling, dredging and shoreline development. One of its current projects is to plan for climate-induced sea level rise.

The Metropolitan Transportation Commission (MTC)

Created by the state Legislature in 1970, MTC is the Bay Area’s transportation planning, coordinating and financing agency. It regularly updates the Regional Transportation Plan, a comprehensive blueprint for the development of mass transit, highway, airport, seaport, railroad, bicycle and pedestrian facilities. MTC also manages a variety of operational programs such as FasTrak, Clipper, and the 511 Traveler Information System.