6(1)A person may at any time—
(a)resign his office as chairman or as a core member by notice in writing to both of the Service Authorities, or
(b)resign his office as a member of a Service Authority appointed under Part II or III of Schedule 1 by notice in writing to that Service Authority.
(2)Where a member resigns his office as a member or as chairman under sub-paragraph (1), he shall send a copy of the notice—
(a)to the Secretary of State, and
(b)if he was appointed under paragraph 7(g) or 8(1)(i) of Schedule 1, to the Commissioners of Customs and Excise.