New Jersey Statutes Title 18A. Education 18A § 11-11

A board of education shall not renegotiate, extend, amend, or otherwise alter the terms of a contract with a superintendent of schools, assistant superintendent of schools, or school business administrator, unless notice is provided to the public at least 30 days prior to the scheduled action by the board. The board shall also hold a public hearing and shall not take any action on the matter until the hearing has been held. The board shall provide the public with at least 10 days' notice of the public hearing.