California Code, Vehicle Code - VEH § 16056

(a) No policy or bond shall be effective under Section 16054 unless issued by an insurance company or surety company admitted to do business in this state by the Insurance Commissioner, except as provided in subdivision (b) of this section, nor unless the policy or bond is subject, if the accident has resulted in bodily injury or death, to a limit, exclusive of interest and costs, of not less than fifteen thousand dollars ($15,000) because of bodily injury to or death of one person in any one accident and, subject to that limit for one person, to a limit of not less than thirty thousand dollars ($30,000) because of bodily injury to or death of two or more persons in any one accident, and, if the accident has resulted in injury to, or destruction of property, to a limit of not less than five thousand dollars ($5,000) because of injury to or destruction of property of others in any one accident.

(b) No policy or bond shall be effective under Section 16054 with respect to any vehicle which was not registered in this state or was a vehicle which was registered elsewhere than in this state at the effective date of the policy or bond or the most recent renewal thereof, unless the insurance company or surety company issuing the policy or bond is admitted to do business in this state, or if the company is not admitted to do business in this state, unless it executes a power of attorney authorizing the department to accept service on its behalf of notice or process in any action upon the policy or bond arising out of an accident mentioned in subdivision (a).

(c) Any nonresident driver whose driving privilege has been suspended or revoked based upon an action that requires proof of financial responsibility may, in lieu of providing a certificate of insurance from a company admitted to do business in California, provide a written certificate of proof of financial responsibility that is satisfactory to the department, covers the operation of a vehicle in this state, meets the liability requirements of this section, and is from a company that is admitted to do business in that person's state of residence.

(d) This section shall remain in effect only until January 1, 2025, and as of that date is repealed.