(1) The board may consist of any number of officers including officers of the Army or the Air Force or Civilian Gazetted officers and Master Chief Petty officers, provided the number of such Master Chief Petty Officers shall not exceed one half of the members constituting the Board.
(2) Army and Air Force Officers and Civilian gazetted Officers, unless they are under the administrative control of the convening authority, shall be appointed only after the concurrence of the appropriate authority superior to the individuals to be appointed.
(3) As far as practicable, the president and the members shall be senior or relatively senior to the person whose conduct is under inquiry and persons whose evidence may be required by the Board shall not be nominated as members.
(4) In selecting members, the convening authority shall have regard to the possibility that a person who has sat on a Board of inquiry may, if otherwise qualified to sit on a court-martial upon the same subject matter, be objected to and that such objection may be alloed by the court.