Cal. Gov't Code § 8670.18

(a) The administrator may inspect or cause to be inspected on a regular basis all vessels.
(b) The administrator shall evaluate and periodically review the adequacy of the vessel inspection programs conducted by the Coast Guard and any other federal, state, or local agency. The evaluation shall consider all of the following:
1. (1) The frequency and scope of inspections.
2. (2) The continuing commitment of the Coast Guard to conduct frequent vessel inspections.
3. (3) Any new or pending federal legislation that is likely to change the Coast Guard’s inspection programs.
4. (4) Whether it is desirable for the state to contract with the Coast Guard for more frequent or expanded vessel inspections.
5. (5) Whether it is desirable and practical for the state to develop and implement a state vessel inspection program.
(c) If the administrator determines in the report that the Coast Guard inspection program is inadequate, the administrator shall attempt to enter into an agreement with the Coast Guard to remedy the deficiencies.
(d) If, within a reasonable time, the administrator cannot remedy deficiencies in the Coast Guard inspection programs, the administrator shall report to the Legislature concerning the steps the administrator is taking to ensure that an adequate vessel inspection program is in place. The administrator shall adopt regulations for any vessel inspection program established pursuant to this section. Vessel inspections authorized pursuant to this section shall be conducted only for the purposes of determining compliance with relevant federal law and the Lempert-Keene-Seastrand Oil Spill Prevention and Response Act, as defined in Section 8670.1. The administrator shall consult with the Coast Guard regarding state-mandated requirements for vessel inspections.
(e) Any state vessel inspection program established pursuant to this section shall not duplicate the activities of the Coast Guard or other authorized federal agencies. The administrator shall maintain a record of these activities for each vessel inspected. Any violation of Coast Guard regulations shall immediately be reported to the Coast Guard.