California Code, Insurance Code - INS § 1758.8

(a) A rental car company shall not offer or sell insurance unless it is licensed as an insurance agent or broker pursuant to Article 3 (commencing with Section 1631) or has complied with the requirements of this article and has been issued a license by the commissioner as provided in this article.

(b) The commissioner may issue to a rental car company, or to a franchisee of a rental car company, that has complied with the requirements of this article, a license that authorizes the rental car company or the franchisee of a rental car company to act as a car rental agent to offer or sell those types of insurance specified in Section 1758.85, in connection with and incidental to rental agreements, on behalf of any insurer authorized to write those types of insurance in this state.