a. The following are appropriate occasions for personnel to wear the Army white uniform.
(1) On duty in all areas, when appropriate and authorized by the local commander.
(2) Off duty, for social occasions.
b. Personnel may wear the Army white uniform with either the black bow tie or the black four-in-hand tie. When worn with a black bow tie, the Army white uniform constitutes a dress uniform and corresponds to a civilian summer tuxedo. When worn with a black four-in-hand tie, the Army white uniform is an informal uniform.