California Code, Insurance Code - INS § 12686

(a) In the event coverage would be continued under a group policy on an employee or member following his or her retirement prior to the time he or she is or could be covered by Medicare, the employee or member may elect, in lieu of the continuation of group insurance, to have the same conversion rights as would apply had that coverage terminated at retirement by reason of termination of employment or membership.

(b) The converted policy may provide for reduction or termination of coverage of any person upon his or her eligibility for coverage under Medicare or under any other state or federal law providing for benefits similar to those provided by the converted policy.  As used in this section, “state or federal law” does not include Chapter 7 (commencing with Section 14000) or Chapter 8 (commencing with Section 14200) of Part 3 of Division 9 of the Welfare and Institutions Code, or Title XIX of the United States Social Security Act.  1

(c) Subject to the conditions set forth herein, the conversion coverage shall also be available to:

(d) If the benefit levels required in Section 12683 or Section 12684 exceed the benefit levels provided under the group policy, the converted policy may offer benefits which are substantially similar to those provided under the group policy in lieu of those required in Section 12683 or Section 12684.

(e) The insurer may elect to provide conversion coverage through a group insurance policy issued for that purpose in lieu of an individual policy.

(f) An insurer required by this part to provide conversion coverage may provide such coverage through one or more other insurers authorized to provide disability insurance coverage in this state.