California Code, Business and Professions Code - BPC § 17511.6

Every telephonic seller shall file with the Attorney General, in the form prescribed by the Attorney General, an irrevocable consent appointing the Attorney General to act as the seller's attorney to receive service of any lawful process in any noncriminal suit, action, or proceeding against the seller or the seller's successor, executor, or administrator, which may arise under this article, when the agent designated pursuant to subdivision (o) of Section 17511.4 has resigned and has not been replaced or if the agent so designated cannot with reasonable diligence be found at the address designated pursuant to subdivision (o) of Section 17511.4 or if no agent has been designated pursuant thereto. When service is made upon the Attorney General in conformance with this section, it shall have the same force and validity as if served personally on the seller. Service may be made by leaving a copy of the process in the office of the Attorney General, but it shall not be effective unless both of the following are done: