New Jersey Statutes Title 2A. Administration of Civil and Criminal Justice 2A § 42A-8

a. willful or malicious failure to guard, or to warn against, a dangerous condition, use, structure or activity; or

b. injury caused by acts of negligence on the part of the owner, lessee or occupant of the premises to any person where permission to engage in sport or recreational activity on the premises was granted for a consideration other than the consideration, if any, paid to the landowner by the State; or

c. injury caused by acts of gross negligence on the part of the owner, lessee, or occupant of the premises to any person entering or using the land for a use or purpose unrelated to public access purposes.