Cal. Ins. Code § 769.81
As used in this article:
(c) “Managing General Agent” (MGA) means any person, firm, association, partnership, or corporation who negotiates and binds ceding reinsurance contracts on behalf of an insurer or manages all or part of the insurance business of an insurer (including the management of a separate division, department or underwriting office) and acts as an agent for that insurer whether known as an MGA, manager, or other similar term, who, with or without the authority, either separately or together with affiliates, produces, directly or indirectly, and underwrites an amount of gross direct written premium equal to or more than 5 percent of the policyholder surplus as reported in the last annual statement of the insurer in any one quarter or year together with one or more of the following: (1) adjusts or pays claims in excess of an amount determined by the commissioner, or (2) negotiates reinsurance on behalf of the insurer.
Notwithstanding the above, the following persons shall not be considered as MGAs for the purposes of this act: