N.J. Admin. Code § 13:24-1.1
The following words and terms, when used in this chapter, shall have the following meanings unless the context clearly indicates otherwise.
"Authorized emergency vehicle" means a vehicle of the fire department, police vehicles and such ambulances and other vehicles as are approved by the Chief Administrator of the Motor Vehicle Commission, when operated in response to an emergency call. Any vehicle that is licensed as a basic life support ambulance by the New Jersey Department of Health and Senior Services in accordance with N.J.A.C. 8:40 or as a mobile intensive care unit or a specialty care transport unit in accordance with N.J.A.C. 8:41 and any ambulance of a volunteer first aid, rescue or ambulance squad that has been certified as qualified for emergency medical service programs in accordance with N.J.S.A. 27:5F-27, and any "first response" vehicle or other vehicle of a volunteer first aid, rescue or ambulance squad that bears governmental or other "no fee" registration, and any "first response" vehicle of a hospital that bears governmental or other "no fee" registration, shall be considered approved as an authorized emergency vehicle for purposes of N.J.S.A. 39:1-1 and this chapter when operated in response to an emergency. Any vehicle of the State Office of Emergency Management or of a county or municipal Office of Emergency Management that bears governmental registration shall be considered approved as an authorized emergency vehicle for purposes of N.J.S.A. 39:1-1 and this chapter when operated in response to an emergency. Any vehicle of the New Jersey Office of Homeland Security and Preparedness that bears governmental registration shall be considered approved as an authorized emergency vehicle for purposes of N.J.S.A. 39:1-1 and this chapter when operated in response to an emergency. Any vehicle bearing governmental registration, when being operated by a county medical examiner or his or her deputy, assistant, or investigator to travel to the scene of a death in accordance with N.J.S.A. 52:17B-87, shall be considered approved as an authorized emergency vehicle for purposes of N.J.S.A. 39:1-1 and this chapter. Any vehicle bearing governmental registration, when being operated by a "fire official" or "fire inspector" as defined in N.J.A.C. 5:71-1.4 to travel to the scene of a fire or explosion in accordance with N.J.A.C. 5:71-3.3, shall be considered approved as an authorized emergency vehicle for purposes of N.J.S.A. 39:1-1 and this chapter. Any vehicle bearing governmental registration, when being operated by a humane law enforcement officer or agent of the New Jersey Society for the Prevention of Cruelty to Animals or of a county society for the prevention of cruelty to animals for purposes of enforcing any law or ordinance enacted for the protection of animals, shall be considered approved as an authorized emergency vehicle for purposes of N.J.S.A. 39:1-1 and this chapter.
"Chief Administrator" means the Chief Administrator of the New Jersey Motor Vehicle Commission.
"Commission" means the New Jersey Motor Vehicle Commission established by section 4 of P.L. 2003, c. 13 (N.J.S.A. 39:2A-4).
"Farm vehicle" means any farm or agricultural tractor, self-propelled machine, or implement, or any combination thereof, that is primarily designed for farm or agricultural operations.
"Flashing light" means a lamp with an intermittent or revolving action.
"Public road" means any road, street, or highway under the jurisdiction of, and maintained by, a public authority and open to public travel.
"Service vehicle" means any vehicle bearing commercial registration that is used to perform some type of maintenance, inspection, or repair function within the confines of public highways or any vehicle used to transport or escort overdimensional loads on public highways.
"Tow truck" means a motor vehicle bearing commercial registration that is equipped with a boom or booms, winches, slings, tilt beds, or similar equipment and that is designed and used for the towing, recovery, or removal of vehicles.
N.J. Admin. Code § 13:24-1.1