N.J. Stat. § 40:67-11
Whenever any municipality shall have determined to pave, repave or otherwise improve any street or other public highway, or any portion thereof, wherein sewers, gas or water mains or pipes, or conduits for wires are located, and it will be necessary to excavate and tear up the improved portion of such street or other public highway to make private connections therewith after the proposed improvement is completed, the governing body thereof, in the ordinance providing for the improvement, or by a separate ordinance, may order the owner of any real estate fronting on the streets or other public highway, or portion thereof, not then connected with the sewer, gas or water mains or pipes or conduits for wires therein, to make the necessary connections therewith before the work upon the improvement shall be begun, and to prescribe the time within which such connections shall be made, which shall be not less than thirty days after the passage of the ordinance, or the body in charge of the work of the improvement may make such connections and assess the expense and costs thereof upon the real estate benefited.
The ordinance may provide the width of the lot or lots for which connections shall be made according to the character of the locality, and all connections shall be made in conformity therewith.
N.J.S. § 40:67-11