Cal. Ins. Code § 936.4

The commissioner may, upon notice and opportunity for all interested parties to be heard, issue those rules, regulations, and orders as may be necessary to carry out the provisions of this article. Those rules and regulations shall be adopted, amended, or repealed in accordance with Administrative Procedure Act Chapter 3.5 (commencing with Section 11340) of Part 1 of Division 3 of Title 2 of the Government Code.