9—(1) In determining its own procedure the Commission may, in particular, make provision about—N.I.
(a)the discharge of its functions by committees (which may include persons who are not members of the Commission);
(b)a quorum for meetings of the Commission or a committee.
(2) The validity of any proceedings of the Commission or a committee shall not be affected by—
(a)a vacancy in the office of chair or deputy chair; or
(b)a defect in the appointment of a member.