11. The acts and proceedings of the Board, or any committee of the Board, shall not be invalidated by any vacancy in their number or by any defect in the appointment, or the qualification for appointment, of any person as a Board member, or as Chairman or Vice-Chairman, of the Board or committee.
12.—(1) Every question at a meeting of the Board or of a committee of the Board shall be decided by a majority vote of the members present and voting.
(2) If at any meeting of the Board or of a committee of the Board there is an equality of votes on any question the chairman of the meeting shall have a second or casting vote.