((a)) ** Composition** The Board shall have an Executive Board composed of—

((1)) the chairman of the Board;

((2)) the vice chairman of the Board;

((3)) the secretary of the Board;

((4)) the treasurer of the Board; and

((5)) an at-large member of the Board elected by the Board at its initial meeting.

((b)) ** Vacancies** In the case of any vacancy which occurs in the position of at-large member before the expiration of such member’s term, the Board shall elect a replacement to complete that term.

((c)) ** Meetings** The Executive Board shall hold not more than 4 regular meetings per calendar year. Special meetings may be held upon the call of the chairman or 3 members of the Executive Board.

((d)) ** Quorum** A majority of the Executive Board shall constitute a quorum.

((e)) ** Powers** The Executive Board may hold and use all the powers of the Board, subject to the approval of the Board.