Cal. Gov. Code § 8628
During a state of emergency the Governor may direct all agencies of the state government to utilize and employ state personnel, equipment, and facilities for the performance of any and all activities designed to prevent or alleviate actual and threatened damage due to the emergency; and he may direct such agencies to provide supplemental services and equipment to political subdivisions to restore any services which must be restored in order to provide for the health and safety of the citizens of the affected area. Any agency so directed by the Governor may expend any of the moneys which have been appropriated to it in performing such activities, irrespective of the particular purpose for which the money was appropriated.
Ca. Gov. Code § 8628