Cal. INS § 6071

Any such insurer may cede reinsurance provided the amount retained by the originating insurer shall be not less than 10 percent nor less than five hundred dollars ($500); provided, however, that the minimum required hereunder shall never exceed six thousand dollars ($6,000). The applicable provisions of Sections 922.1 to 922.8 inclusive shall govern for the purposes of testing the solvency and preparing the annual statement of the ceding insurer.