Army Regulation 670-1 governs hair and grooming practices or accommodations based on religious practices. Exceptions based on religious practices that were given to soldiers in accordance with AR 600-20 on or prior to 1 January 1986 remain in effect as long as the soldier remains otherwise qualified for retention.
The requirement for hair grooming standards is necessary to maintain uniformity within a military population. Many hairstyles are acceptable, as long as they are neat and conservative. It is not possible to address every acceptable hairstyle, or what constitutes eccentric or conservative grooming. It is the responsibility of leaders at all levels to exercise good judgment in the enforcement of Army policy. All soldiers will comply with the hair, fingernail, and grooming policies while in any military uniform or while in civilian clothes on duty.
Leaders judge the appropriateness of a particular hairstyle by the appearance of headgear when worn. Soldiers will wear headgear as described in the applicable chapters of AR 670-1. Headgear will fit snugly and comfortably, without distorted or excessive gaps. Soldiers may not wear hairstyles that do not allow proper wear of headgear, or that interfere with the proper wear of the protective mask or other protective equipment.
Extreme, eccentric, or trendy haircuts or hairstyles are not authorized. If soldiers use dyes, tints, or bleaches, they must choose those that result in natural hair colors. Colors that detract from a professional military appearance are prohibited. Soldiers should avoid using colors that result in an extreme appearance. Applied hair colors that are prohibited include, but are not limited to purple, blue, pink, green, orange, bright (fireengine) red, and fluorescent or neon colors. It is the responsibility of leaders to use good judgment in determining if applied colors are acceptable, based upon the overall effect on the soldier's appearance.
Soldiers who have a texture of hair that does not part naturally may cut a part into the hair. The part will be one straight line, not slanted or curved, and will fall in the area where the soldier would normally part the hair. Soldiers will not cut designs into their hair or scalp.
Soldiers may not wear hairnets unless they are required for health, safety, or duty performance (such as a cook). No other type of hair covering is authorized in lieu of the hairnet. The commander will provide the hairnet to the soldier at no cost.
Male Hair Standards
Male haircuts will conform to certain standards. The hair on top of the head must be neatly groomed. The length and bulk of the hair may not be excessive or present a ragged, unkempt, or extreme appearance. The hair must present a tapered appearance. A tapered appearance is one where the outline of the soldier's hair conforms to the shape of the head, curving inward to the natural termination point at the base of the neck. The hair will not fall over the ears or eyebrows, or touch the collar, except for the closely cut hair at the back of the neck. The block-cut fullness in the back is permitted to a moderate degree, as long as the tapered look is maintained.
In all cases, the bulk or length of hair may not interfere with the normal wear of headgear, protective masks, or equipment. Males are not authorized to wear braids, cornrows, or dreadlocks (unkempt, twisted, matted, individual parts of hair) while in uniform or in civilian clothes on duty. Hair that is clipped closely or shaved to the scalp is authorized.
Males will keep sideburns neatly trimmed. Sideburns may not be flared; the base of the sideburn will be a clean-shaven, horizontal line. Sideburns will not extend below the lowest part of the exterior ear opening.
Males will keep their face clean-shaven when in uniform or in civilian clothes on duty. Mustaches are permitted. If mustaches are worn, they will be neatly trimmed, tapered, and tidy. Mustaches will not present a chopped off or bushy appearance, and no portion of the mustache will cover the upper lip line or extend sideways beyond a vertical line drawn upward from the corners of the mouth. Handlebar mustaches, goatees, and beards are not authorized. If appropriate medical authority prescribes beard growth, the length required for treatment must be specified. For example, "The length of the beard will not exceed ¼ inch." Soldiers will keep the growth trimmed to the level specified by appropriate medical authority, but they are not authorized to shape the growth into goatees, or "Fu Manchu" or handlebar mustaches.
Males are prohibited from wearing wigs or hairpieces while in uniform or in civilian clothes on duty, except to cover natural baldness or physical disfiguration caused by accident or medical procedure. When worn, wigs or hairpieces will conform to the standard haircut criteria.
Female Hair Standards
Female soldiers will ensure their hair is neatly groomed, that the length and bulk of the hair are not excessive, and that the hair does not present a ragged, unkempt, or extreme appearance. Likewise, trendy styles that result in shaved portions of the scalp (other than the neckline) or designs cut into the hair are prohibited. Females may wear braids and cornrows as long as the braided style is conservative, the braids and cornrows lie snugly on the head, and any holding devices comply with the standards. Dreadlocks (unkempt, twisted, matted individual parts of hair) are prohibited in uniform or in civilian clothes on duty. Hair will not fall over the eyebrows or extend below the bottom edge of the collar at any time during normal activity or when standing in formation. Long hair that falls naturally below the bottom edge of the collar, to include braids, will be neatly and inconspicuously fastened or pinned, so no free-hanging hair is visible. This includes styles worn with the improved physical fitness uniform (IPFU).
Styles that are lopsided or distinctly unbalanced are prohibited. Ponytails, pigtails, or braids that are not secured to the head (allowing hair to hang freely), widely spaced individual hanging locks, and other extreme styles that protrude from the head are prohibited. Extensions, weaves, wigs, and hairpieces are authorized only if these additions have the same general appearance as the individual's natural hair. Additionally, any wigs, extensions, hairpieces, or weaves must comply with grooming policies.
Females will ensure that hairstyles do not interfere with proper wear of military headgear, protective masks, or equipment at any time. When headgear is worn, the hair will not extend below the bottom edge of the front of the headgear or below the bottom edge of the collar.
Hair-holding devices may be used only for securing the hair. Soldiers will not place hair-holding devices in the hair for decorative purposes. All hair-holding devices must be plain and of a color as close to the soldier's hair as is possible or clear. Authorized devices include, but are not limited to, small, plain scrunchies (elastic hair bands covered with material), barrettes, combs, pins, clips, rubber bands, and hair bands. Devices that are conspicuous, excessive or decorative are prohibited. Some examples of prohibited devices include, but are not limited to, large, lacy scrunchies; beads, bows, or claw clips; clips, pins, or barrettes with butterflies, flowers, sparkles, gems, or scalloped edges; and bows made from hairpieces.