A casual vacancy shall arise in the event of the death, disqualification, or vacation of office by a member, before the end of that member's term of office as specified in accordance with article 3 (or as the case may be article 9), or the failure of a member to make a declaration under article 6.

A casual vacancy arising in the office of a member shall be filled by the appointment of a suitable person in terms of articles 5(5) and 6 by the other members.

A member appointed to fill a casual vacancy under this article shall hold office (unless that person previously dies or otherwise ceases to be a member) during the remainder of the term for which the member in whose place that person was appointed, would, in ordinary course, have continued in office.