N.J. Stat. § 4:12A-49
It is the intent of the Legislature that the instant, whenever that may be, that the handling within the State, by a milk dealer, of milk produced outside of the State, becomes a subject of regulation by the State, in the exercise of its police powers, the restrictions set forth in this act respecting such milk so produced shall apply and the powers conferred by this act on the director shall attach. After any such milk so produced shall have come to rest within the State, any sale, within the State, by a licensed milk dealer, processor, subdealer or store or a milk dealer required by this act to be licensed, of any such milk purchased from the producer at a price lower than that required to be paid for milk produced within the State, purchased under similar conditions, shall be unlawful and deemed a violation of this act, and for continued violations the director, by the Attorney-General, may maintain an action in the Superior Court to restrain such further unlawful acts.
N.J.S. § 4:12A-49