California Demand for Proof of Insurance on Motor Vehicle with Certificate of Service is a document required by the California Department of Motor Vehicles (DMV) to prove that a vehicle owner has adequate insurance coverage for their vehicle. This document, which must be signed by the insurance company, is used to verify that the required minimum liability insurance coverage has been purchased for the vehicle. The California Demand for Proof of Insurance on Motor Vehicle with Certificate of Service must be renewed each year and must be presented to the DMV before registration or renewal of registration can be completed. The two types of California Demand for Proof of Insurance on Motor Vehicle with Certificate of Service are a Financial Responsibility Insurance Certificate (SR-22) and an Owner’s Certificate of Insurance. An SR-22 is issued by an insurance company and verifies that the vehicle owner has the minimum required liability insurance coverage. An Owner’s Certificate of Insurance is a document that is issued by the insurance company and verifies that the vehicle owner has the required coverage for their vehicle.