Membership for Members of the House of Commons
C1. Any person serving as a Member of the House of Commons shall be a participating Member in the principal scheme except the following—
(a)any person who holds or who has held the office of Prime Minister and First Lord of the Treasury who has not exercised an option under regulation C2; and
(b)the Speaker of the House of Commons if he has not exercised an option under regulation C2; and
(c)any Member of that House who has exercised an option under regulation C4 not to be a participant in the principal scheme.