California Code, Civil Code - CIV § 798.25

(a) Except as provided in subdivision (d), when the management proposes an amendment to the park's rules and regulations, the management shall meet and consult with the homeowners in the park, their representatives, or both, after written notice has been given to all the homeowners in the park 10 days or more before the meeting. The notice shall set forth the proposed amendment to the park's rules and regulations and shall state the date, time, and location of the meeting.

(b) Except as provided in subdivision (d) following the meeting and consultation with the homeowners, the noticed amendment to the park's rules and regulations may be implemented, as to any homeowner, with the consent of that homeowner, or without the homeowner's consent upon written notice of not less than six months, except for regulations applicable to recreational facilities, which may be amended without homeowner consent upon written notice of not less than 60 days.

(c) Written notice to a homeowner whose tenancy commences within the required period of notice of a proposed amendment to the park's rules and regulations under subdivision (b) or (d) shall constitute compliance with this section where the written notice is given before the inception of the tenancy.

(d) When the management proposes an amendment to the park's rules and regulations mandated by a change in the law, including, but not limited to, a change in a statute, ordinance, or governmental regulation, the management may implement the amendment to the park's rules and regulations, as to any homeowner, with the consent of that homeowner or without the homeowner's consent upon written notice of not less than 60 days. For purposes of this subdivision, the management shall specify in the notice the citation to the statute, ordinance, or regulation, including the section number, that necessitates the proposed amendment to the park's rules and regulations.

(e) Any amendment to the park's rules and regulations that creates a new fee payable by the homeowner and that has not been expressly agreed upon by the homeowner and management in the written rental agreement or lease, shall be void and unenforceable.