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. Notarized bill of sale, or registration in place of a title. • Ask for photo ID to verify that the seller is the vehicle owner. Dealer Number (only if applicable); Seller's Signature; Seller's Street Address, City, State, and Zip code. The buyer said he didn't want to transfer the title in his name yet because he's giving it to his son so he's going to have his son complete the transfer later. The motor vehicle seller must insert the sales price, nonresident state and Arizona county tax rates and complete all mathematical calculations. An AZ DMV notarized bill of sale is a legally recognized document used in Arizona for vehicle transactions. It's essential for transferring ownership.