N.J. Stat. § 24:10-57.15
If a local board within this State is unable for any reason to conduct inspections as provided herein, the local board shall certify by resolution its inability so to do and shall in the resolution detail the reasons for such inability. A certified copy of such resolution shall be forwarded to the department which may investigate said reasons and determine for itself the sufficiency thereof.
Upon being satisfied that the reasons set forth in the local board's resolution are correct, the department shall take over, supersede and have the inspections conducted on behalf of the local board. Whenever a local board desires to start or resume inspections, the local board shall certify by resolution its desire and ability so to do, and a copy of such resolution shall be forwarded to the department.
N.J.S. § 24:10-57.15