The California Motor Vehicle Bill of Sale form is an essential document that serves as proof of the sale and transfer of ownership of a motor vehicle. A California motor vehicle bill of sale is part of the vehicle registration process.Use a free template to write your own bill of sale. Paperwork Reduction Act. Notice. We ask for the information on this form to carry out the Internal Revenue laws of the United States. Funding is usually found in the form of a property-related fee (similar to water and sewer fees). Proposition. At 7: "While it is accurate that NIED is a form of. Section references are to the Internal Revenue Code unless otherwise noted. Paperwork Reduction. Note: Are you looking for a printable application form?