In total, 143 municipalities have joint or signed the Charter of the Pelagos Sanctuary. You could see:

 

 

Find all the French municipalities that have signed the Charter on the interactive map, available here: http://pnpc.dynmap.eu/carto/signataire_pelagos_gdpublic/flash/

For more information on Italian signing municipalities, you could also visit the website of the Italian Ministry of the Environment.