Cal. Lab. Code § 3702
(a) A certificate of consent to self-insure may be revoked by the director at any time for good cause after a hearing. Good cause includes, among other things, a recommendation by the Self-Insurers’ Security Fund to revoke the certificate of consent, the impairment of the solvency of the employer to the extent that there is a marked reduction of the employer’s financial strength, failure to maintain a security deposit as required by Section 3701, failure to pay assessments of the Self-Insurers’ Security Fund, frequent or flagrant violations of state safety and health orders, the failure or inability of the employer to fulfill his or her obligations, or any of the following practices by the employer or his or her agent in charge of the administration of obligations under this division: