Library File Link. 48-2004. Purpose. Vehicle Identification Number.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. A Bill of Sale acts as your receipt when you sell a vehicle. The document contains information about the buyer and seller, details about the vehicle, the date of the sale, and the price. An Arizona motor vehicle bill of sale is part of the vehicle registration process. You can use our free template to create your document. The bill of sale does not have to be notarized.