Clearly print or type all information, except signatures. It documents information about the buyer, seller, and vehicle that is necessary for registration and titling.It does also require notarization. If you purchase or sell a trailer, a New York trailer bill of sale can document the transfer of ownership for vehicle registration. MV-912: Vehicle Bill of Sale (PDF). English. Use this form to show proof of a vehicle ownership transfer through a private sale. Download. Learn about New York bills of sale for vehicles, boats, firearms, and more. Get answers to frequently asked questions and download the templates you need. A motor vehicle bill of sale is between a buyer and a seller of a car, truck, or motorcycle. It is signed as the last step in the sales process.