The California Department of Transportation (Caltrans) is an executive department of the U.S. state of California. The department is part of the cabinet-level California State Transportation Agency (CalSTA). Caltrans is headquartered in Sacramento.
Caltrans manages the state's highway system, which includes the California Freeway and Expressway System, supports public transportation systems throughout the state and provides funding and oversight for three state-supported Amtrak intercity rail routes (Capitol Corridor, Pacific Surfliner and San Joaquins) which are collectively branded as Amtrak California.
In 2015, Caltrans released a new mission statement: "Provide a safe, sustainable, integrated and efficient transportation system to enhance California’s economy and livability.
For administrative purposes, Caltrans divides the State of California into 12 districts, supervised by district offices. Most districts cover multiple counties; District 12 (Orange County) is the only district with one county. The largest districts by population are District 4 (San Francisco Bay Area) and District 7 (Los Angeles and Ventura counties). Like most state agencies, Caltrans maintains its headquarters in Sacramento, which is covered by District 3.