N.J. Stat. § 4:12A-21
The director may fix the price at which milk is to be bought, sold, or distributed; regulate conditions and terms of sale; establish and require observance of fair trade practices; supervise, regulate and control the entire milk industry of the State of New Jersey, including the production, importation, classification, processing, transportation, disposal, sale or resale, storage or distribution of milk as defined in this act in the State of New Jersey in those matters and in every way necessary to carry out the purposes of this act and necessary to control or prevent unfair, unjust, destructive or demoralizing practices which are likely to result in the demoralization of agricultural interest in this State engaged in the production of milk or interfere with the maintenance of a fresh, wholesome supply of sanitary milk for the consumers of this State; provided, however, that nothing contained in this act shall be construed as authorizing the director to adopt, promulgate or enforce orders, rules or regulations containing provisions or sanitary regulations as defined in section one of this act; and provided, further, that nothing contained in this act or orders, rules or regulations adopted thereunder shall conflict with or be construed to abrogate or affect the status, force or operation of any public health law, any sanitary regulation or any local health ordinance, code or regulation, or Title 24 of the Revised Statutes and amendments thereof and supplements thereto.
N.J.S. § 4:12A-21