(1) Where a vacancy exists in the membership of the Tribunal, except where the vacancy is in respect of the Chairperson, the Tribunal may, with the consent of the parties to a dispute, act notwithstanding the vacancy.
(2) Any act, proceeding, or determination of the Tribunal shall not be called in question or invalidated by reason of a vacancy, provided that in the circumstances referred to in subsection (1) the required consent has been first obtained.