N.J. Stat. Ann. § 40:48-2.56

2. Any county or municipality which has not established a board of recreation commissioners may, by resolution, establish a recreation trust fund into which shall be deposited any fees paid by individuals to offset the costs of operating county or municipal recreational programs. Those amounts expended from the fund shall be utilized exclusively for the purpose of operating those programs for which fees are collected and to refund payments made by program participants.