Convention on Access to Information, Public Participation in Decision-Making and Access to Justice in Environmental Matters (Aarhus, 25 June 1998)
Protocol on Pollutant Release and Transfer Registers (Kyiv, 21 May 2003)
Convention on Environmental Impact Assessment in a Transboundary Context (Espoo, 25 February 1991)
Protocol on Strategic Environmental Assessment (Kyiv, 21 May 2003)
Convention on the Protection and Use of Transboundary Watercourses and International Lakes (Helsinki, 17 March 1992)
Amendment to the Convention Convention on the Protection and Use of Transboundary Watercourses and International Lakes (Madrid, 28 November 2003)
Protocol on Water and Health to the 1992 Convention on the Protection and Use of Transboundary Watercourses and International Lakes (London, 17 June 1999)
Protocol on Civil Liability and Compensation for Damage Caused by the Transboundary Effects of Industrial Accidents on Transboundary Waters to the 1992 Convention on the Protection and Use of Transboundary Watercourses and International Lakes and to the 1992 Convention on the Transboundary Effects of Industrial Accidents (Kiev, 1 May 2003)
Draft Model Provisions on Transboundary Groundwaters (Geneva, 3-4 July 2012)
Convention on Long-range Transboundary Air Pollution (Geneva, 13 November 1979)
The 1999 Protocol to Abate Acidification, Eutrophication and Ground-level Ozone and its 2012 amended version (Gothenburg, 13 November 1999)
The 1998 Protocol on Persistent Organic Pollutants (POPs) and its 2009 amended version (Aarhus, 24 June 1998)
The 1998 Protocol on Heavy Metals and its 2012 amended version (Aarhus, 24 June 1998)
The 1994 Protocol on Further Reduction of Sulphur Emissions (Oslo, 14 June 1994)
The 1991 Protocol concerning the Control of Emissions of Volatile Organic Compounds or their Transboundary Fluxes (Geneva, 18 November 1991)
The 1988 Protocol concerning the Control of Nitrogen Oxides or their Transboundary Fluxes (Sofia, 31 October 1988)
The 1985 Protocol on the Reduction of Sulphur Emissions or their Transboundary Fluxes by at least 30 per cent (Helsinki, 8 July 1985)
The 1984 Protocol on Long-term Financing of the Cooperative Programme for Monitoring and Evaluation of the Long-range Transmission of Air Pollutants in Europe (EMEP) (Geneva, 8 September 1984)