4(1)Subject to the provisions of this paragraph, the chairman of the Trustees shall hold and vacate his office in accordance with the terms of his appointment.U.K.
(2)The chairman may resign his office by notice in writing to the Prime Minister.
(3)A trustee who ceases or has ceased to be chairmen may be reappointed to that office.
(4)If the chairman ceases to be a trustee he shall also cease to be chairman.