California Code, Health and Safety Code - HSC § 18081

(a) Any person may request, and the department shall furnish, information regarding the current registration and title status of a manufactured home, mobilehome, commercial coach, truck camper, or floating home. The department shall provide forms for these requests, shall establish a standard format for providing the information, and may charge fees to pay the cost of furnishing this information.

(b) Upon receipt of a properly executed request for information and the payment of prescribed fees, the department shall provide the information within five working days by first-class mail to the address indicated on the request. The department may adopt procedures for providing the information by electronic facsimile in addition to mailing that information.

(c) Notwithstanding subdivisions (a) and (b), the home address of the registered owner appearing in the information on current registration and title status maintained by the department is confidential if the owner requests confidentiality of that information, and shall not be disclosed to any person, except a court, a law enforcement agency, the State Board of Equalization, or any governmental agency to which, under any provision of law, information is required to be furnished from records maintained by the department.

(d) The owner requesting confidentiality of his or her home address shall provide the department with a mailing address which is not confidential, which will be open to public inspection, and which may be used for mailings by the department. The owner requesting confidentiality shall declare to the department, under penalty of perjury, that the address provided is a valid, existing and accurate mailing address and shall consent to receive service of process pursuant to subdivision (b) of Section 415.20 and subdivision (a) of Section 415.30 and Section 416.90 of the Code of Civil Procedure at the address.