It is a criminal offense to use or operate a motor vehicle, boat, airplane, motorcycle, or other motor-propelled vehicle without the consent of the owner or other person authorized to give consent. This crime is generally known as (1) unauthorized use of a motor vehicle, (2) unauthorized use of a vehicle, or (3) joyriding.

The difference between this crime and the crime of theft is that the state does not have to prove a person charged with unauthorized use of a motor vehicle intended to keep the vehicle or permanently deprive the owner of the vehicle.

Laws regarding the unauthorized use of a motor vehicle vary from state to state and are generally found in a state’s statutes—often in the penal or criminal code or the vehicle code.

In Rhode Island, the unauthorized use of a motor vehicle, commonly referred to as 'joyriding,' is a criminal offense under Rhode Island General Laws Section 31-7-9. This statute makes it illegal for any person to use or operate a motor vehicle without the consent of the owner. Unlike theft or grand larceny, the prosecution does not need to prove that the individual intended to permanently deprive the owner of the vehicle; it is sufficient to show that the vehicle was used without authorization. The penalties for joyriding in Rhode Island can include fines, imprisonment, or both, depending on the circumstances of the offense and the individual's criminal history. It is important for individuals charged with this crime to consult with an attorney to understand the specific charges and potential defenses available to them.