N.J. Stat. Ann. § 51:7-2

It shall be unlawful for any person to transport over the highways of this State any anthracite brought into this State by motor vehicle from outside of this State unless such anthracite when it crosses any boundary line of this State and at all times thereafter during the transportation thereof over the highways of this State is accompanied by an original certificate of origin signed by the person who is the owner or operator of the breaker, colliery, yard or other place of production or storage, or his duly authorized agent, where the anthracite to which the certificate of origin refers was produced or stored and also signed by the person driving or operating the motor vehicle on which said anthracite is transported into this State.