Cal. INS § 11699

Unless the deposit required pursuant to Section 11691 is withdrawn by the commissioner pursuant to the authority granted him or her by this article, it, or any remainder thereof, may be repaid to the insurer either upon satisfactory showing to the commissioner that every liability to pay compensable workers’ compensation claims has been assumed and reinsured with a solvent admitted insurer or fully paid and discharged. In the event the insurer remains admitted for workers’ compensation insurance, or desires to reinsure the injury, disablement, or death portions of policies of workers’ compensation under the class of disability insurance, then it must maintain at least the minimum deposit required by Section 11691.