If you’re in the United States and your car is registered with a state other than Arizona, you’ll need to register it with the state Department of Motor Vehicles. If you’re in Arizona, you’ll need to register your car with the Department of Transportation. To do this, you’ll need to go to your local DMV and provide them with your driver’s license number and registration information. The DMV will then send you a registration card that they will need to sign. Once you’ve registered your car in Arizona, be sure to keep up-to-date on all of the changes that may occur with vehicle registrations. For example, changes may be made to the registration fee or the expiration date of your registration.