Final answer:
NJ residents must title, insure, and register a new or used vehicle before driving on public roads to comply with legal requirements and receive license plates.
Step-by-step explanation:
NJ residents who buy a new or used vehicle must title, insure, and register it before driving on public roads. Titling a vehicle provides proof of ownership, while insurance is legally required to protect against financial loss due to an accident or theft. Registering a vehicle with the New Jersey Motor Vehicle Commission (MVC) is necessary to receive license plates, which allows law enforcement to identify the vehicle and its owner.