Vehicle Industry Registration Procedures Manual. Driver Education illustration.It serves to record the sale, provide proof of the transaction, assist in the vehicle registration, and protect both parties. Use our bill of sale templates to transfer ownership of an item from one person to another. Identification of the Parties: Clearly state the buyer and seller's full names and addresses. 2. We will be addressing how to fill out a bill of sale form for the sale of a car so let's get started with this guide to filling out a bill of sale form. We've assembled a convenient checklist to help you get all your papers in order and sell your car legally and with a minimum of fuss. Use our bill of sale templates to transfer ownership of an item from one person to another. Learn about bills of sale in California for animals, vehicles, firearms, and more. How to sell your used car or truck privately in California.