When you sell your vehicle, complete a sold notice right away. In addition, you may be eligible to receive credit for registration fees (vehicle license tax) previously paid.  Don’t wait to apply for the credit!  The amount of credit is based on when the vehicle registration expires, so waiting reduces the amount. Note: You are not eligible for a registration credit if you register the vehicle in another state. 
A service is available on AZMVDNow.gov to check for liens and unresolved financial obligations on an Arizona titled vehicle.
Requirements for when a vehicle is sold (or otherwise transferred) you.
MVD is responsible for issuing certificates of title to mobile homes. To apply for a mobile home title, contact MVD and upload applicable documents in your AZ MVD.