The Convention on Access to Information, Public Participation in Decision-making and Access to Justice in Environmental Matters was adopted in 1998 in the Danish city of Aarhus, under the auspices of the United Nations Economic Commission for Europe (UNECE). The Aarhus Convention entered into force in 2001 and now has 47 Parties, including the EU and all of its Member States. Ireland is also a Party to the Protocol on Pollutant Release and Transfer Registers, which has 38 Parties. The EU became a Party to the Aarhus Convention in 2005. Ireland ratified the Convention on 20th June 2012. Ireland has fully transposed the Convention into national law and became subject to the Convention’s compliance mechanism, the Aarhus Convention Compliance Committee (ACCC), 18 months after ratification.