California Code, Health and Safety Code - HSC § 18022

(a) The director, and other representatives of the department designated by him or her, shall enforce those provisions of law committed to the administration of the department pursuant to this part.

(b) Any person designated in subdivision (a) may inspect any manufactured home, mobilehome, commercial coach, or truck camper of a type required to be registered under this code, or any component part thereof, in any garage, repair shop, parking lot, new or used sales facility, manufacturer's facility, display facility, or any other establishment engaged in the business of selling, repairing, or displaying manufactured homes, mobilehomes, commercial coaches, or truck campers, or the integral parts thereof, for the purpose of investigating the title and registration of the manufactured home, mobilehome, commercial coach, or truck camper, or the sales practices thereof.