Mustaches are generally allowed in both the military and police forces (except for those undergoing basic training), so long as they are well-groomed. U.S. Army regulations, for example, require that a mustaches be ''neatly trimmed, tapered, and tidy'', and that ''no portion of the mustache will cover the upper lip line, extend sideways beyond a vertical line drawn upward from the corners of the mouth...or extend above a parallel line at the lowest portion of the nose.''

Is it true that can you have a mustache in the coast guard?
yes