Don't let some here fool you into thinking that Yank electricians aren't adequately trained, because generally talking they are!! Put it this way, there is no such thing as a 17 Day or electrical trainee electrician or such a person as a Domestic Installer!! lol!! You'll need to sit a trade test, which i understand will include a working knowledge of the latest NFPA 70 (National Electrical Codes)!! Which covers much more than it's equivalent BS7671 i might add!!
It's true they don't put anywhere near as much emphasis on proof testing of new installations, they generally test to fault find!! Generally speaking you will rarely if ever see a MFT or any form of ELI testers. Mostly it will be IR and basic GFCI testers, over and above the Yanks standard test equipment which will be a decent multimeter (DMM) and a decent amp clamp. Quite a few will also have a 3 point earth test kit too!!