Chapter 1: General Registration Information. California Bill of Sale Forms (3).A California bill of sale is an official document used to record the sale of personal property between a buyer and seller. Learn about bills of sale in California for animals, vehicles, firearms, and more. A notarized bill of sale is a document that records the legal transfer of any type of personal property (vehicle, boat, etc.) from a seller to a buyer. While notarization is not required, having the Bill of Sale notarized can add an extra layer of authenticity. Secure your transaction with our notarized bill of sale template. Here is a step-by-step procedure to perform a proper notarization: Step 1: Personal appearance is required. Every state in the United States requires that a seller of a vehicle issue a bill of sale to the buyer. Transfer ownership of an automobile from a seller to a buyer with a bill of sale.