5.—(1) The first chairman and deputy chairman of the Board shall be elected by the members of the Board (in accordance with paragraph 7 of Schedule 13 to the 2000 Act) at the first meeting of the Board as provided for at paragraph 1(1) above.
(2) Subsequent chairmen and deputy chairmen of the Board shall be elected by the members of the Board (in accordance with paragraph 7 of Schedule 13 to the 2000 Act) at a meeting of the Board.
(3) A person elected as a chairman or deputy chairman of the Board may at any time resign his office by notice in writing given to the chief officer of the Board.
(4) Where a casual vacancy in the office of chairman or deputy chairman of the Board is filled the person so appointed shall hold office until the date upon which the person in whose place he is elected would regularly have retired.
(5) Where necessary, the meeting at which such a casual vacancy is to be filled shall be convened by the chief officer of the Board.