12. If the chairman is unable to act, has resigned or has been dismissed, the vice-chairman shall act as chairman while the chairman is unable to act or until a new chairman is appointed.
If the vice-chairman is unable to act, has resigned or has been dismissed, another member designated by the Government shall act as vice-chairman while the vice-chairman is unable to act or until a new vice-chairman is appointed.
If another member is unable to act, the Government may appoint a person to exercise his functions while he is unable to act. If the member held office on a full-time basis, the first paragraph of section 8 shall apply; if he held office on a part-time basis, the second paragraph of section 8 shall apply.