N.J. Stat. Ann. § 40:48-2.3a

Any building or buildings, or parts thereof, which have been damaged to such an extent that nothing remains but the walls, or parts of the walls and other supports, shall, regardless of the safety and sturdiness of those remaining walls or parts thereof, be deemed inimical to the welfare of the residents of the municipality wherein it is located, and the municipality may exercise its police powers to repair, demolish, or cause the repairing or demolishing of the building or buildings, or parts thereof, pursuant to P.L.1942, c.112 (C.40:48-2.3 et seq.), and the procedures set forth therein.