N.J. Stat. Ann. § 40:37-12

This section and sections 40:37-14 and 40:37-15 of this title shall remain inoperative in any county until adopted by a majority of the votes cast on the question of the adoption or rejection thereof at a general election. The question shall be submitted to the voters at such election whenever a request in writing therefor shall be filed with the county clerk at least twenty days before the election, by the commission, board or other authority having control and maintenance of the county parks. When adopted this section and said sections 40:37-14 and 40:37-15 shall govern and control appropriations for park maintenance in the county.