N.J. Stat. Ann. § 40:12-27

8. While performing park maintenance, operation, or improvement responsibilities pursuant to a park maintenance, operation, or improvement agreement entered into in accordance with this act, a participating entity and its employees, agents, contractors, members, and volunteers shall not be considered to be "public employees" or "State employees" for the purposes of the "New Jersey Tort Claims Act," or otherwise be accorded any of the protections set forth therein.