New Jersey Statutes Title 18A. Education 18A § 17-20.1

At the conclusion of the term of the initial contract or of any subsequent contract as hereinafter provided, the superintendent shall be deemed reappointed for another contracted term of the same duration as the previous contract unless either: a. the board by contract reappoints him for a different term which term shall be not less than three nor more than five years, in which event reappointments thereafter shall be deemed for the new term unless a different term is again specified; or b. the board notifies the superintendent in writing that he will not be reappointed at the end of the current term, in which event his employment shall cease at the expiration of that term, provided that such notification shall be given prior to the expiration of the first or any subsequent contract by a length of time equal to 30 days for each year in the term of the current contract.