Pub. Resources Code, § 3743

(a) An order of the supervisor or a district deputy issued pursuant to this chapter shall provide a clear and concise recitation of the acts or omissions with which the operator is charged. The order shall state all penalties and requirements imposed on the operator in connection with the acts or omissions charged and the order shall provide citations to the provisions of this code and the regulations that support the imposition of the penalties and requirements.

(b) An order of the supervisor or a district deputy shall be in writing and shall be served on the operator by personal service or by certified mail.

(c) When the supervisor or a district deputy makes or gives any written direction concerning the drilling, testing, or other operations in any well drilled, in process of drilling, or being abandoned, and the operator, owner, or representative of either, serves written notice, either personally or by mail, addressed to the supervisor, or to the district deputy at his or her office in the district, requesting that a definite order be made upon the subject, the supervisor or the district deputy shall, within five days after receipt of the notice, deliver a final written order on the subject matter.

(d) When the supervisor or a district deputy issues any written order concerning an operation, an appeal may be made from the order pursuant to Sections 3762 to 3768, inclusive. The order shall inform the operator of its right to appeal the order.