Cal. Ins. Code § 11656.9

To encourage and facilitate the participation of agencies, entities or institutions, public or private, in economic opportunity programs authorized under Public Law 88-452, insurers may insure the workers’ compensation liability to enrollees of sponsoring agencies pursuant to Chapter 9 (commencing with Section 4201) of Part 1 of Division 4 of the Labor Code under a master policy, subject to the approval of the Insurance Commissioner.