The California Department of Corrections and Rehabilitation (CDCR) is the penal law enforcement agency of the government of California responsible for the operation of the California state prison and parole systems. Its headquarters are in Sacramento.

The government of California is the governmental structure of the U.S. state of California as established by the California Constitution. California uses the separation of powers system to structure its government. It is composed of three branches: the executive, consisting of the governor of California and the other constitutionally elected and appointed officers and offices; the legislative, consisting of the California State Legislature, which includes the Assembly and the Senate; and the judicial, consisting of the Supreme Court of California and lower courts. There is also local government, consisting of counties, cities, special districts, and school districts, as well as government entities and offices that operate independently on a constitutional, statutory, or common law basis. The state also allows direct participation of the electorate by initiative, referendum, recall and ratification.