68.3. The first vice-chairman replaces the chairman if the latter is absent or unable to act or if the office of chairman is vacant.
The second vice-chairman replaces the first vice-chairman if the latter is absent or unable to act or if the office of first vice-chairman is vacant.
Where the permanent substitute mayor replaces the mayor of the city of Québec as a member of the executive committee pursuant to the second paragraph of section 68.1, he does not replace the mayor as chairman or vice-chairman of the committee.