California Code, Health and Safety Code - HSC § 1373.2

Every group health care service plan entered into, amended, or renewed on or after January 1, 1976, which provides hospital, medical, or surgical expense benefits for employees or subscribers and their dependents and which contains provisions granting the employee or subscriber the right to convert the coverage in the event of termination of employment or membership, shall include in such conversion provisions the same conversion rights and conditions to a covered dependent spouse of the employee or subscriber in the event the covered dependent spouse ceases to be a qualified family member by reason of termination of marriage.