12(1)One of the members of the Council appointed by the Privy Council shall be designated by the Privy Council as the chairman of the Council, and a board shall appoint one of its members to be the chairman of the board.
(2)The chairman of the Council or a board shall hold office as such until the expiration of the period determined by the body designating or appointing him as chairman or until he ceases to be a member of the Council or board, whichever first occurs, and shall then retire from that office.
(3)The Chairman, or in his absence the person acting as chairman, of the Council or a board shall have a second or casting vote.