New Jersey Statutes Title 39. Motor Vehicles and Traffic Regulation 39 § 5B-21

In addition to any other conditions or liability imposed by law, it shall be unlawful to ship or transport, or cause to be shipped or transported, by motor vehicle over the highways of this State those types and quantities of radioactive material for which a certificate of handling is required pursuant to the terms of P.L.1977, c. 233 (C. 26:2D-18 et seq.), unless the certificate of handling or certification number is obtained from the State Department of Environmental Protection and is in the possession of the driver or operator of any motor vehicle used for the transport of the material on the highways of this State.