The part of the government in charge of freeways in Southern California.

The California State Department of Transportation is responsible, as the owner/operator of the state highway system for its safe operation and maintenance. Proposes projects for the ITIP (see p. 12). Caltrans also is responsible for the SHOPP (see p. 7), Toll Bridge, and Aeronautics programs. Caltrans is the implementing agency for most state highway projects and for the Intercity Rail program.

The California Department of Transportation (Caltrans) is the state agency responsible for the safe operation and maintenance of the California highway system.