Article R2531-23 of the French General Code of Local Authorities
If they are unable to attend, the members of the committee referred to in Article L. 2531-12 may be represented. The presidents of the regional council and the departmental councils are replaced by a vice-president. The mayor of Paris is replaced by a deputy or, failing that, by a Paris councillor. Representatives of groups of communes and mayors are replaced by alternates elected at the same time as them and…