A Pennsylvania vehicle bill of sale is a legal document formalizing the sale and purchase of a motor vehicle between a buyer and seller. ❒ ODOMETER STATEMENT: Fill in the appropriate spaces in Section A. ❒ REGISTRATION PLATE: Remove the registration plate for transfer to another vehicle or return.NOTE: If an out-of-state title is attached to this application, a tracing of the Vehicle's Identification. Number must be affixed in the space provided. The monthly return form is available at the Tax Collector's Office, Allegheny County Courthouse,. Invoices shall be in a format consistent with those shown in. Exhibit C. The report shall be in a form reasonably acceptable to the Authority and shall be. Proof of vehicle registration; A current and valid driver's license. For a full list of acceptable documents, review the Required Document section. It is a legal document outlining the terms of borrowing a vehicle.