
The registration number, commonly known as the license plate, is found on the front and rear of the vehicle's exterior. The most common and easily visible locations are mounted on the bumper or a dedicated bracket on the trunk lid. You'll typically find one plate on the front and one on the rear, though some states, like Pennsylvania, only require a rear plate.
Beyond the standard locations, there are a few other places to check. On the dashboard inside the windshield, you might find a temporary registration tag issued by a dealer. The official vehicle registration document (the paper you get from the DMV) also contains the plate number and should be kept in the car. For precise identification, the Vehicle Identification Number (VIN), which is permanent, is etched on a metal plate on the driver's side dashboard, visible through the windshield, and on the driver's side door jamb.
The requirement for front and rear plates varies by state. The table below shows the plate requirements for a selection of states to illustrate the differences.
| State | Front Plate Required? | Rear Plate Required? | Notes |
|---|---|---|---|
| California | Yes | Yes | Both plates are mandatory. |
| Florida | No | Yes | Only a rear plate is required. |
| New York | Yes | Yes | Both plates are mandatory. |
| Texas | Yes | Yes | Both plates are mandatory. |
| Arizona | No | Yes | Only a rear plate is required. |
| Pennsylvania | No | Yes | Only a rear plate is required. |
If you cannot locate the plates, your vehicle registration card will have the number listed. Always ensure your plates are securely attached, clean, and unobstructed to avoid citations.

















Just look at the bumpers. There should be a metal or plastic plate on both the front and back of your car with big letters and numbers. That's it. If you only see one on the back, your state might not require a front one. The number on that plate is what you need for forms and stuff. It's way easier to find than the VIN.

I had to find mine for a parking permit application. The main spots are the front and rear bumpers. But don't forget the paperwork! The most reliable place is your vehicle registration card in the glove box—it’s printed right there. Also, if you just bought the car, there might be a temporary paper tag taped to the inside of the rear window until the metal plates arrive in the mail.

From an official standpoint, the license plate is the primary registration identifier. It's fastened to the exterior of the vehicle. However, the number is also replicated on the state-issued registration certificate, which must be kept within the vehicle. For permanent identification, the VIN on the dashboard is the key reference, but for daily registration purposes, the plate is the intended, visible marker for law enforcement and administrative tasks.

Pop the glove box and grab that little paper card from the DMV. That's your official registration, and the number is printed on it. That's your surefire way to get it. Obviously, the big metal plates on your bumpers show the number, too. But if you're filling out a form at home, just use the number from the registration card. It's always correct and saves you a trip outside to check.


