Cal. Veh. Code § 16484

Except when a nonresident minor’s certificate or minor’s license is canceled as required by Sections 12504 and 17704, respectively, whenever any evidence of proof of financial responsibility filed by any person under the provisions of this code no longer fulfills the purpose for which required, the department shall require other evidence of financial responsibility as required by Article 1 (commencing with Section 16430) and shall suspend the privilege of the person to operate a motor vehicle upon a highway. The suspension shall remain in effect until adequate proof of financial responsibility is filed with the department by the person.