Ariz. Rev. Stat. § 28-4077 – Certificate of insurance

A. A person may give proof of financial responsibility by filing with the director the written certificate of an insurance carrier duly authorized to do business in this state certifying that there is in effect a motor vehicle liability policy for the benefit of the person required to furnish proof of financial responsibility. The certificate shall:
1. 1. Be in a form and shall contain the information prescribed by the director.
2. 2. Designate by explicit description or by appropriate reference all motor vehicles covered by the certificate, unless the policy is issued to a person who is not the owner of a motor vehicle.
B. A motor vehicle shall not be or shall not continue to be registered in the name of a person required to file proof of financial responsibility unless the motor vehicle is designated in the certificate.