4(1)Subject to the following provisions of this paragraph, a person shall hold and vacate office as a member or as chairman or vice-chairman of the Board in accordance with the terms of his appointment.
(2)The chairman, vice-chairman and other members of the Board may not be appointed for a term of more than 4 years at a time, and a person appointed to fill a casual vacancy shall hold office for the remainder of the term of the person in whose place he is appointed.
(3)A person may at any time resign as a member or as chairman or vice-chairman of the Board by notice in writing to the Secretary of State.
(4)A person shall cease to hold office as a member or as chairman or vice-chairman if he becomes disqualified for membership of the Board.
(5)The Secretary of State may remove a person from office as a member or as chairman or vice-chairman of the Board if satisfied that—
(a)before his appointment he failed to disclose to the Secretary of State his conviction of a criminal offence in Northern Ireland or elsewhere;
(b)he has been convicted of a criminal offence committed after the date of his appointment;
(c)he has become bankrupt or made a composition or arrangement with his creditors;
(d)he is not committed to non-violence and exclusively peaceful and democratic means;
(e)he has failed to comply with the terms of his appointment; or
(f)he is otherwise unable or unfit to discharge his functions.
(6)A member of the Board whose term of office expires or who has resigned shall be eligible for re-appointment.