Here in northern NJ I know of 3 different 3 party inspection agencies. There is BIU, Garden State, and Middle department. In southern NJ there is Ocean County Electrical Inspection Agency. These agencies have been around for many years. Plus the state Department of Comunity (DCA)Affairs can also do inspections. If my town doesn't have their own inspector, they would then let the job go out to bid. The 3rd party agencies would bid against one another and they would have to bid lower than the goverment to get the job. The DCA sets the fees and the 3rd party people have to either match or beat the price. The lowest bidder gets the job for a 4 year period. (I believe it is 4 years.) However no matter how good (or bad) the 3rd party is, they still have to meet the state's Uniform Construction Code. (UCC) I myself have been hired by the town, so I am not attached to any 3rd party agency.