Joe,

In NJ as an AHJ I am only allowed to look at new work that is installed under the NEC as adopted by my state. In my case the state of NJ does not adopt the NEC in it's entire condition. The remove sec. 80 of the NEC and they remove section 210.12 that requires arc-fault. (That is a whole other discussion.) I am not allowed to walk into an existing building and cite code violations for things that I see. (That is the job of the Fire Prevention people.) They come in once or twice a year for inspections and they are suppose to cite those violations. YET, Fire prevention people do not enter 1 and 2 family dwellings.(or condo units.)