Cal. INS § 10202.5

(a) The term “employees” as used in Section 10202 may include the officers, managers, and employees of subsidiary or affiliated corporations, and the individual proprietors, partners, and employees of affiliated individuals and firms, when the business of such subsidiary or affiliated corporations, firms, or individuals is controlled by the policyholder through stock ownership, contract or otherwise, or when the policyholder is controlled by affiliated corporations, firms, or individuals through stock ownership, contract or otherwise. The policy may provide that the term “employees” as used in Section 10202 may include classes of former employees, including retired employees, and may also include the individual proprietors or partners who constitute the policyholder, but limited to such individual proprietors and partners who are actively engaged in the business the employees of which are covered by the group insurance.

(b) This section does not permit any person other than an officer, manager, or employee for compensation, or classes of former employees, including retired employees, of the policyholder or of one or more of the individuals, firms, or corporations or of the individual proprietors or partners specified in subdivision (a) to become insured under a group policy.