N.J. Stat. Ann. § 18A:40-41f

2. As used in sections 3 through 5 of P.L.2013, c.209 (C.18A:40-41g through C.18A:40-41i), "athletic activity" means: interscholastic athletics; an athletic contest or competition, other than interscholastic athletics, that is sponsored by or associated with a school district or nonpublic school, including cheerleading and club-sponsored sports activities; and any practice or interschool practice or scrimmage for those activities.