 | This article needs to be updated. (November 2023) |
AC Transit is a public transit agency that operates 131 bus lines throughout the East Bay region of California. The agency also administers the Dumbarton Express lines, but operation of those lines was transferred to MV Transportation on December 19, 2011. AC Transit provides extensive local bus service to 17 cities in Alameda and Contra Costa counties and the city of Milpitas in Santa Clara County. Transbay bus service is also provided to San Francisco in San Francisco County, San Mateo in San Mateo County, and Palo Alto and Santa Clara in Santa Clara County.