The Union is a party to the United Nations Economic Commission for Europe (UNECE) Convention on Access to Information, Public Participation and Access to Justice in Environmental matters (the "Aarhus Convention").
Tá an tAontas ina pháirtí de Choinbhinsiún Choimisiún Eacnamaíochta na Náisiún Aontaithe don Eoraip (UNECE) maidir le Rochtain ar Fhaisnéis, Rannpháirtíocht Phoiblí agus Rochtain ar Cheartas i gcúrsaí Comhshaoil ("Coinbhinsiún Aarhus").