im a bit late on this one but im from the uk.i was actually a traffic signal engineer back home and when i came here i sort of stumbled into working for an ec. as was said earlier, the basics you will be ok with but the code side here is a lot different than in the uk. your best bet would be to get yourself a copy of the code handbook
www.nfpacatalog.org the order code for the book is w7. thats the code handbook to nec, which is the basics but changes are made depending on where you work. this book has a lot of explanations about items in the code and is a bit easier to get your head round, you need to check with the area you want to work in to find out about any changes. but prior to that you will need to battle with the ins. they frustrated me in more ways than one and my wife is american.......go figure.
good luck......
