Gentlemen:
NJ does have "State" inspectors. There responsibilities are State owned properties. Like NJ Transit Stations (Structures, not the trains/buses, and like the Service Areas on the toll roads. (ie: Mc D on the PKY, etc)
Also, DOT has jurisdiction on roadway projects that are State funded. As to Plan Review, most hospitals, public buildings, and all the school construction projects are State reviewed.
Our 'AHJ" is usually the Electrical Sub-Code Official that is appointed/hired by the municipality, or a 3rd party (BIU-Garden State, etc) agency that has a contract with the municipality.
It's a tough situation when an EC gets a small job at a 'service area' and the muni office does not know it's State jurisdiction. The EC gets a Permit from the muni, and finds out he is technically "working without a valid permit", as a State permit was not applied for, nor approved.
All State permits originate in the Trenton area, Hamilton Twp, I believe.
John