N.J. Stat. Ann. § 18A:13-72

If the application is granted, the county superintendent shall, after conferring with the governing bodies of the constituent municipalities of the regional district, fix a day and a time for holding a special school election, at which time the question whether or not the withdrawing municipality shall withdraw from the all purpose regional district shall be submitted to the legal voters of the withdrawing municipality and to the legal voters within the remainder of the all purpose regional district.