New Jersey Statutes Title 39. Motor Vehicles and Traffic Regulation 39 § 3-66.3

Every motor vehicle, other than a motorcycle, shall be equipped on the rear with at least two stoplights, one at each side of the vertical centerline at the same height and as far apart as practical, except that a passenger vehicle manufactured before July 2, 1954, may be equipped with one stoplight.

All passenger automobiles manufactured on or after September 1, 1985, shall, in addition, be equipped with a high-mounted rear stoplight on the vertical centerline.

All multipurpose passenger vehicles, trucks, and modified buses whose overall width is less than 80 inches and whose GVWR is 10,000 pounds or less, manufactured on or after September 1, 1993, shall, in addition, be equipped with a high-mounted rear stoplight on the vertical centerline.

All multipurpose passenger vehicles, trucks, and modified buses whose overall width is less than 80 inches and whose GVWR is 10,000 pounds or less and whose vertical centerline, when the vehicle is viewed from the rear, is not located on a fixed body panel but separate one or two moveable body section, such as doors, and which lacks sufficient space to install a single high-mounted stoplight on the centerline above such body sections, and which is manufactured on or after September 1, 1993, shall, in addition, be equipped with two high-mounted rear stoplights.

All stoplights shall be of a type meeting the standards of the United States Department of Transportation or, for motor vehicles manufactured prior to the adoption of such standards, the standards of the Society of Automotive Engineers, and approved by the chief administrator.