It is a class 2 misdemeanor traffic offense in Colorado to either: Use a false name or address, knowingly make a false statement, or knowingly conceal a material fact in an application for the registration, renewal registration, or duplicate registration of a motor vehicle; or display, permit to be displayed, have in possession, or offer for sale a certificate of title, validation tab or sticker, or registration number plate knowing the same to be fictitious or to have been stolen, canceled, revoked, suspended, or altered. Penalties for having fake car registration include 10 to 90 days in county jail and/or $150 to $300 in fines. Convictions can never be sealed from your criminal record. But if the charge gets dismissed, you can petition for a seal right away.