New Jersey Statutes Title 40. Municipalities and Counties 40 § 61-24

In case any part of any park, heretofore or hereafter established by any municipality under this chapter, shall be or shall become contiguous to any part of any park, heretofore or hereafter so established by any other municipality in the same or adjoining counties, the several municipalities may contract with each other for the development, improvement, control or management of both or all of said public parks, or any parts thereof, either jointly or by any one or more of the municipalities. In case any two or more such municipalities shall contract for the joint control and management of any such parks or places, the same shall be subject to such rules and regulations as may be adopted pursuant to law by the ordinance of the governing body of one of the municipalities and approved by the ordinance of the governing body or bodies of the other interested municipality or municipalities.