Cal. Government Code § 66641.6

(a) The executive director of the commission may issue a complaint to any person or entity on whom administrative civil liability may be imposed pursuant to this article. The complaint shall allege the act or failure to act that constitutes a violation of law, the provision of law authorizing civil liability to be imposed pursuant to this title, and the proposed civil liability. (b) The complaint shall be served by personal notice or certified mail, and shall inform the party so served that a hearing shall be conducted within 60 days after the party has been served. The hearing shall be before the commission. The complainant may waive the right to a hearing, in which case the commission shall not conduct a hearing. (c) After any hearing, the commission may adopt, with or without revision, the proposed decision and order of the executive director. (d) Orders setting administrative civil liability shall become effective and final upon issuance thereof, and any payment shall be made within 30 days. Copies of these orders shall be served by personal service or by registered mail upon the party served with the complaint and upon other persons who appeared at the hearing and requested a copy.