6.—(1) The members may appoint one of their number, other than the chairman or an officer member, to be deputy chairman.
(2) The term of office of a member as deputy chairman shall be the unexpired portion of his term of office as a member, or such shorter period as is specified on his appointment.
(3) The deputy chairman shall perform the duties of the chairman where the chairman has died, ceased to hold office or is unable to perform his duties for any other reason.
(4) The deputy chairman may at any time resign the office of deputy chairman by giving notice in writing to the chairman, whereupon the members may appoint another of their number as deputy chairman in accordance with the provisions of paragraph (1).
(5) Where the deputy chairman ceases to be a member, he shall also cease to be deputy chairman.