Cal. Health & Safety Code § 18605

The department shall adopt regulations to govern the use and occupancy of manufactured homes, mobilehomes, and recreational vehicles. These regulations shall establish minimum requirements to protect the health and safety of the occupants and the public, and shall also provide for the repair or abatement of any unsafe or unsanitary condition of the manufactured home, mobilehome, or recreational vehicle or of the electrical, mechanical, or plumbing installations therein.