Library File Link. 48-2004. Purpose. An Arizona motor vehicle bill of sale is part of the vehicle registration process.You can use our free template to create your document. An Arizona motor vehicle bill of sale (ADOT Form 48-2004) is a legal document that transfers ownership of a motor vehicle from a seller to the buyer. An AZ DMV notarized bill of sale is a legally recognized document used in Arizona for vehicle transactions. It's essential for transferring ownership. The motor vehicle seller must insert the sales price, nonresident state and Arizona county tax rates and complete all mathematical calculations. Once you've completed a private car sale in Arizona, you'll need to visit your local Motor Vehicle Division (DMV) to complete your registration. Fill out an Arizona vehicle bill of sale if you are selling a motor vehicle in this state. Protect your deal with a high-quality bill of sale template.