California Code, Government Code - GOV § 65863.8

(a) A local agency to which application has been made for the conversion of a mobilehome park to another use shall, at least 30 days prior to a hearing or any other action on the application, inform the applicant in writing of the provisions of Section 798.56 of the Civil Code and all applicable local requirements which impose upon the applicant a duty to notify residents and mobilehome owners of the mobilehome park of the proposed change in use, and shall specify therein the manner in which the applicant shall verify that residents and mobilehome owners of the mobilehome park have been notified of the proposed change in use. Neither a hearing on the application, nor any other action thereon, shall be taken by the local agency before the applicant has satisfactorily verified that the residents and mobilehome owners have been so notified, in the manner prescribed by law or local regulation.

(b) Notwithstanding Section 65803, this section shall also apply to a charter city.