Cal. Ins. Code § 995.3
Every person operating under a retrospective or contingent compensation arrangement with any insurer shall report to the insurer within a reasonable time, and policy by policy, the full premium charge including any policy fee made to the insured and the amount of premium and policy fee, if any, collected from the insured in respect to each such policy. Such reporting need not be policy by policy in a case where such arrangement covers only policies which are all uniform in coverage, uniform as to premium and such premium is not over ten dollars ($10) annually.
If the commissioner has reason to believe any such person is not complying with this section, he shall give the insurer seven days written notice of such belief and if the insurer does not correct the situation within seven days thereafter, he may examine such person at the expense of the insurer.
Nothing contained in this section is intended to prohibit or invalidate use of the bordereau method of accounting or accounting by transmission of computer data by a managing general agent, surplus line broker, or general agent, nor to require him to report premium collections to an insurer where the managing general agent, surplus line broker, or general agent is liable to pay the insurer bordereau or accounting balances in full whether collected or not.
Ca. Ins. Code § 995.3