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. Bill of Sale (REG 135); Verification of Vehicle (REG 31). If you're unsure which forms are required, our Smog Hut Star Station team can help. Demand that they sign a valid Bill of Sale. Here is a master list of the Building Division's bulletins and forms. I lived in San Jose at the time. We had an old car we sold, we took there cash, filled out the bill of sale form and sent it to the DMV. Free editable deed of sale sample template for buying or selling cars.