7.1. The person elected as chairman shall cease to represent, on the Council, the municipality of which he is the mayor or a councillor.
During his term of office as chairman, he shall be replaced in his capacity as representative of that municipality by a councillor designated by the council of the municipality. The designation may be made in advance.
No designation of a councillor made pursuant to the second paragraph of section 6 may be revoked while the councillor holds office as chairman; it lapses, however, if he becomes mayor during his term as chairman.