Someone has to be liscensed to be a mechanic somewhere? I never heard of that. Sure would help around here with all the jerry rigged junk we have to fix after other guys.
Yes, in Michigan a repair facility has to be licensed, as well as mechanics working there, to fix a vehicle for Joe public. Fixing a car in an unlicensed garage is against the law.
You can get around it..... If say one guy isn't licensed and the other three guys are, by them basically taking credit for his work and " hiding" him as maybe a cleanup guy, or parts chaser, etc, etc., apprentice.