Library File Link. 48-2004. Purpose. Upon registering their newly acquired boat, the new owner must submit a bill of sale to the Arizona Game and Fish Department, among several other documents.Vehicle Identification Number. This document is a bill of sale needed for transferring ownership of a watercraft. It contains necessary fields that must be filled out accurately. Boat-Bill-of-Sale-Templates. - Free download as Word Doc (. This Watercraft Bill of Sale is essential for transferring ownership of a watercraft in Arizona. The Arizona watercraft bill of sale form is used when the rightful owner of a watercraft decides to transfer the ownership of the same to a third party buyer. The Arizona boat bill of sale, also "Form 678", allows two parties to legally document the sale of a motorized vessel. Step 2 – Register the Boat.