Can you ride a 49cc scooter in NJ with a regular license?

Yes you can all you need is a Standard NJ Drivers License

You can only go on roads with a speed limit of 35 or less good for riding around town and having fun

http://www.scootersnj.com/gallery/201-2013-Other-NEW-SCOOTER-LAW-IN-NJ-(50cc-Scooters)/