Cal. Civ. Code § SPS 326.38

SPS 326.38 Dispute procedures.
(1) If a manufactured home community occupant disputes a manufactured home community operator or manufactured home community contractor’s request for a deposit, or advises the manufactured home community’s designated office prior to the disconnection of service that all or any part of any billing as rendered is in dispute, or that any matter related to the disconnection or refusal of service is in dispute, the manufactured home community operator or manufactured home community contractor shall do all of the following:
(a) Investigate the dispute promptly and completely.
(b) Advise the manufactured home community occupant of the results of the investigation.
(2)
(a) After the manufactured home community occupant has pursued the available remedies with the manufactured home community operator or manufactured home community contractor, the manufactured home community occupant may request that the department informally review the disputed issue and recommend terms of settlement.
(b) A request for informal review may be made in any reasonable manner, including written, electronic or telephone request directed to the department. The department may request in writing or by telephone the manufactured home community operator or manufactured home community contractor to provide investigative information regarding the dispute.
(c) A manufactured home community operator or manufactured home community contractor shall respond to the department request for an investigation promptly. Based on information provided by the manufactured home community operator or manufactured home community contractor and the manufactured home community occupant, the department shall make an informal determination for settlement of the dispute and communicate that determination to both parties. Either party to the dispute may request and receive the department determination, and the basis for it, in writing. The department shall inform any manufactured home community occupant disputing an informal determination of the right to pursue a formal review.
(d) At least 7 business days shall elapse between the date the department telephones or mails notice of terms of settlement and disconnection.
(3)
(a) After informal review, any party to the dispute may make a written request for a formal review by the department. To avoid disconnection pending a formal review, the manufactured home community occupant shall request in writing a formal review by the department within 7 business days of the issuance of the informal determination. All other requests for formal review shall be made within 30 calendar days of the date the department telephones or provides written notice of terms of the settlement after informal review. If a party to a dispute requests written confirmation of the department decision, the 30-day period begins from the date of that mailing.
(b) The department shall base its formal determination on the request for formal review and the department’s informal dispute file. Within 45 calendar days from the date that a request for formal review is made, the department shall draft a memorandum based on the information it has received from the manufactured home community operator or manufactured home community contractor and the manufactured home community occupant. A copy of the memorandum shall be provided to the parties no less than 15 business days prior to consideration by the department. The department shall inform both parties in writing of the date of consideration. Either party to the dispute may file a response to the department memorandum. A response shall be filed with the department no less than 2 business days prior to the date scheduled for consideration by the department. The department shall inform both parties in writing of its formal review decision.
(4) Either party to the dispute may request that the department reconsider its formal determination under this section. A request for reconsideration shall comply with s. 227.49, Stats., and shall be received by the department within 20 days after the date the department mailed the determination. A request for reconsideration shall include any additional information or arguments that the party believes were not considered in the original dispute. The department may review and reaffirm its original decision, issue a new decision, or decide to hold a hearing on the matter for the gathering of additional information.
(5)
(a) If the department decides under sub. (4) to conduct a hearing, the department may impose conditions on granting the hearing. If either party fails to meet a condition, the department may or may not hold a hearing on the dispute.
(b) The hearing shall conform to the procedures of ch. 227, Stats.
(c) The hearing shall be held not less than 10 days following mailing of the notice of hearing and a decision shall be rendered within 30 days following the conclusion of the hearing.
(6) Manufactured home community water and sewer service shall not be disconnected or refused because of any disputed matter while the disputed matter is being pursued in accordance with the provisions of this section. The manufactured home community operator or manufactured home community contractor shall inform the manufactured home community occupant that pursuing a disputed matter does not relieve the manufactured home community occupant of the obligation of paying charges that are not in dispute, prevent disconnection of water and sewer service for nonpayment of undisputed charges, or prevent the application of a late payment charge to amounts in dispute and later determined to be correct.