California Code, Vehicle Code - VEH § 21107.9

(a) Any city or county, or city and county, may, by ordinance or resolution, find and declare that there are privately owned and maintained roads within a mobilehome park, as defined in Section 18214 of the Health and Safety Code, or within a manufactured housing community, as defined in Section 18801 of the Health and Safety Code, within the city or county, or city and county, that are generally not held open for use by the public for vehicular travel. Upon enactment of the ordinance or resolution, the provisions of this code shall apply to the privately owned and maintained roads within a mobilehome park or manufactured housing community if appropriate signs are erected at the entrance or entrances to the mobilehome park or manufactured housing community of the size, shape, and color as to be readily legible during daylight hours from a distance of 100 feet, to the effect that the roads within the park or community are subject to the provisions of this code. The city or county, or city and county, may impose reasonable conditions and may authorize the owners of the mobilehome park or manufactured housing community to erect traffic signs, markings, or devices which conform to the uniform standards and specifications adopted by the Department of Transportation.

(b) No ordinance or resolution shall be enacted unless there is first filed with the city or county a petition requested by the owner or owners of any privately owned and maintained roads within a mobilehome park or manufactured housing community, who are responsible for maintaining the roads.

(c) No ordinance or resolution shall be enacted without a public hearing thereon and 10 days' prior written notice to all owners of the roads within a mobilehome park or manufactured housing community proposed to be subject to the ordinance or resolution. At least seven days prior to the public hearing, the owner or manager of the mobilehome park or manufactured housing community shall post a written notice about the hearing in a conspicuous area in the park or community clubhouse, or if no clubhouse exists, in a conspicuous public place in the park or community.

(d) For purposes of this section, the prima facie speed limit on any road within a mobilehome park or manufactured housing community shall be 15 miles per hour. This section does not preclude a mobilehome park or manufactured housing community from requesting a higher or lower speed limit if an engineering and traffic survey has been conducted within the community supporting that request.

(e) The department is not required to provide patrol or enforce any provision of this code on any privately owned and maintained road within a mobilehome park or manufactured housing community, except those provisions applicable to private property other than by action under this section.