Transfer, Replace, or Change Title To prove vehicle ownership, it's important to have a valid, up-to-date, and accurate Certificate of Title. Avoid white-out, scribbles, and strike-throughs.Visit the California DMV's website and download a bill of sale. A bill of sale does not make a salvage title. You must obtain a title and that can be difficult to impossible when you have to depend on the CA. In California you do NOT need a bill of sale if the Title OWNER signed over the title to you.