(a) Except an officer of the Navy and Marine Corps who is an officer designated for limited duty (to whom section 8146(e) or 8372 of this title applies) and except as provided under section 637(a) of this title, each officer of the Army, Air Force, Marine Corps, or Space Force on the active-duty list who holds the grade of captain or major, and each officer of the Navy on the active-duty list who holds the grade of lieutenant or lieutenant commander, who has failed of selection for promotion to the
(a) (1) Members of selection boards shall be appointed by the Secretary of the military department concerned in accordance with this section. A selection board shall consist of five or more officers of the same armed force as the officers under consideration by the board. Each member of a selection board (except as provided in paragraphs (2), (3), and (4)) shall be an officer on the active-duty list. Each member of a selection board must be serving in a grade higher than the grade of the officers