8. Where—
(a)a member is appointed to be deputy chair either by the Assembly or in accordance with regulation 7, and
(b)the chair has died or has ceased to hold office, or is unable to perform the duties of chair owing to illness, absence from the United Kingdom or any other cause,
the deputy chair will act as chair until a new chair is appointed or the existing chair resumes the duties of that office as the case may be, and references to the chair will, so long as there is no chair able to perform the duties of that office, be taken to include references to the deputy chair.