Article R4413-3 of the French General Code of Local Authorities
The public establishment is administered by a twenty-four-member board of directors comprising: 1° Twenty members of the regional assemblies of the Ile-de-France region, elected from among their members, seventeen by the regional council and three by the regional economic, social and environmental council; 2° Four persons qualified in the field of nature and environmental protection, appointed by the president of the regional council.