12. Within 30 days from the date on which the office of chairman becomes vacant, an election to elect the chairman must be held in accordance with section 7.
If there is a vacancy on the Council with respect to the members referred to in the second paragraph of section 6 when the office of chairman becomes vacant, or if such a vacancy occurs before the office of chairman is filled, the election of the chairman must be held within the 30 days following the day on which the vacancy in the office of a member of the Council is filled.
For the purposes of the second paragraph, the absence or inability to act of a member of the Council referred to in the second paragraph of section 6 shall be regarded as a vacancy and such vacancy shall be considered to be filled when the absence or inability to act of the member ceases.
1979, c. 95, s. 31; 1983, c. 29, s. 2; 1990, c. 85, s. 8; 1999, c. 40, s. 67.