N.J. Stat. Ann. § 18A:39-16

In the event that any controversy or dispute shall arise among the parties to any such agreement for joint transportation, the same shall be referred to the county superintendent of the county in which the districts are situate for determination and his determination thereon shall be binding, subject to appeal to the commissioner. In the event that the districts are in more than one county, the controversy or dispute shall be referred to the county superintendents of the counties for joint determination, and if they shall be unable to agree upon a joint determination within 30 days, the controversy or dispute shall be referred to the commissioner for determination.