Never give out your social security number to anyone. We remind consumers not to give out their social security numbers to anyone calling or emailing them to “register?for the CARS program or the Cash for Clunkers program. Consumers don't register, car dealers will have to register. Consumers can verify that their “clunker?nbsp;qualifies for a voucher on the cars.gov website.  Once they qualify they will go to a local new car dealer to make a new car purchase.   It's that simple. Consumers do not need to get a voucher before you go to the car dealer. The car dealer will handle all the paperwork. You do however, have to bring some things with your trade. You'll need your title and proof that the car was insured and registered in your name continuously for a year. This is not a government website. this website is created by consumers for consumers. You may find more updates about by coming back often.