If you are required to take a hair folical drug test, does the hair have to come off your head only?

Or is it possible to use hair off other parts of the body?

They will take hair from your under arms and chest. I just had two test where they shaved my legs because I have a shaved head. the lower on the body you go though the farther back they can test. Suppossedly the leg hair is the worse place you want them to take it from if you do use drugs because they automatically test back one year.