N.J. Stat. § 26:3-31.1
Local boards of health may enact, amend or supplement ordinances to establish, amend or supplement rules and regulations affecting the installation, maintenance, repair and control of the plumbing, ventilation and drainage of buildings and the connection thereof with an outside sewer, cesspool or other receptacle, regulating the practice of plumbing, or dealing with the issuance of licenses to practice plumbing, by reference to such rules and regulations in any such ordinance and without the inclusion of the text thereof therein, if the rules and regulations to be adopted are printed or otherwise reproduced in book form as a code or as a part of a code of such rules and regulations; provided, that a copy of such printed code, so marked as to indicate plainly what portion thereof, if less than the whole, is intended to be adopted, is annexed to such ordinance; that said code or such portion thereof as is intended to be adopted is so described in said ordinance as to identify it and there is indicated in said description the common or trade name, if any, of such code of rules and regulations and that it is stated in the ordinance that three copies of said code, similarly marked, have been placed on file in the office of the municipal clerk, upon the introduction of said ordinance and will remain on file there until final action is taken on said ordinance, for the use and examination of the public.
N.J.S. § 26:3-31.1