Cal. Insurance Code § 1856

Every group, association or other organization of insurers which engages in joint underwriting or joint reinsurance through such group, association or organization or by standing agreement among the members thereof shall file with the commissioner (a) a copy of its constitution, its articles of incorporation, agreement or association, and of its by-laws, rules and regulations governing its activities, all duly certified by the custodian of the originals thereof, (b) a list of its members, and (c) the name and address of a resident of this State upon whom notices or orders of the commissioner or process may be served. Every such group, association or other organization shall notify the commissioner promptly of every change in its constitution, its articles of incorporation, agreement or association, and of its by-laws, rules and regulations governing the conduct of its business; its list of members; and the name and address of the resident of this State designated by it upon whom notices or orders of the commissioner or process affecting such group, association or organization may be served. No such group, association or organization shall engage in any unfair or unreasonable practice with respect to such activities.