A long time ago one of the senior Marines told us we were not allowed to shave our heads with a razor in case we nicked our scalp it could get infected out in the field, but to use a clipper without the guard was ok. I was just asking for the recent regulations about clipping ones whole head, since regulations seem to change year to year. It could save a motivated Marine 8-10 bucks a week and pay for the clippers it self in one shot. That is a potential savings of $520.00 Bucks a year!