Regulation Haircut - a very short tapered haircut. The back and sides are cut very short and clipped to the scalp lower down at the back and sides, tapered very short to the crown, with the top cut just long enough to comb over. This is a broad term and you may wish to provide more details of what you want to your barber. In some shops, you might expect to have the hair clipped to the scalp up to about an inch and a half or more above the hair line. In other shops, less of the head may be clipped to the skin.