Here in NJ there is only one license. You are either an electrical contractor or you are not. If you are a licensed electrical contractor you get a license stating that you are licensed. Then you have to but a business permit. That says you are bonded and insured and you are now allowed to put your license to work. The unions have apprentices, and journeyman titles, but that real just tells someone how many years of experience you have. As a licensed electrical contractor, I can work on any type of communication wiring, any kind of fire alarm wiring, any kind of AC/DC wiring, and any kind of high voltage wiring that I want. ( I would be stupid to work on high voltage without the proper training.) Yet, my company can always hire someone who was qualified and my company could still dothe work.