N.J. Stat. Ann. § 21:1A-139
The commissioner shall have exclusive jurisdiction over the regulation of the manufacture, sale, transportation, storage and use of explosives. This act shall supersede any existing ordinance, by-law or resolution of any municipality or other governmental subdivision pertaining to the manufacture, sale, transportation, storage or use of explosives.
L.1960, c. 55, p. 482, s. 12.