Cal. Vehicle Code § 16054.2

Evidence may also be established by any of the following: (a) By depositing with the department cash in the amount specified in Section 16056. (b) By providing documentation of a liability policy covering the operation of the vehicle that (A) is issued by a charitable risk pool operating under Section 5005.1 of the Corporations Code, if the registered owner of the vehicle is a nonprofit organization that is exempt from taxation under paragraph (3) of subsection (c) of Section 501 of the United States Internal Revenue Code and (B) the policy 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. (c) By any other manner authorized by the department which effectuates the purposes of this chapter.