31.1. The Council has the offices of chairman, first vice-chairman and second vice-chairman of the Community; such offices shall not be held concurrently by the same person.
To determine the holders of the offices, the following categories are established from among the municipalities listed in Schedule A:
(1) Category 1 comprising the city of Québec;
(2) Category 2 comprising the cities of Beauport, Charlesbourg and Sainte-Foy;
(3) Category 3 comprising the other municipalities.
Each office must be held successively, in a set order and for a period of two years, by the mayor of a municipality in each category. Mayors of municipalities in the same category may not hold more than one office concurrently.