A new card registration card is needed when you have lost your old card or you would like to get a new set of documents for the car. You can keep these documents in the car when you are driving, or you could keep this registration card in your wallet just for security purposes. However, you need to go to a tag office to get a new registration card, but these tag offices are easy to use because they allow you to make an appointment or walk in at any time. When you come to the office, they have all the documentation that you need to complete to finish up your registration.