(1) The office of a member of the Board is vacated —
(a) on the death of the member;
(b) if the member becomes disqualified under section 16;
(c) if the member resigns under section 18;
(d) if the Minister revokes the appointment of the member under section 19; or
(e) on the expiry of the member's term of appointment.
(2) A decision of the Board taken at a meeting is not invalidated by a vacancy in the membership as long as there was the quorum required under section 24.