| Amendment to Article 6 of the 1996 Protocol to the Convention on the Prevention of Marine Pollution by Dumping of Wastes and other Matter, 1972 | 30.10.2009 |
| Agreement on the Conservation of Albatrosses and Petrels | 19.06.2001 |
| International Convention on Civil Liability for Bunker Oil Pollution Damage, 2001 | 23.03.2001 |
| Amendment to the Agreement on the Conservation of Bats in Europe | 24.7.2000 |
| Kyoto Protocol to the United Nations Framework Convention on Climate Change | 11.12.1997 |
| 1996 Protocol to the Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter | 22.9.1997 |
| Agreement on the Conservation of African-Eurasian Migratory Waterbirds | 15.8.1996 |
| Agreement for the Implementation of the Provisions of the United Nations Convention on the Law of the Sea of 10 December 1982 Relating to the Conservation and Management of Straddling Fish Stocks and Highly Migratory Fish Stocks | 4.12.1995 |
| Amendment to the Basel Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal | 22.09.1995 |
| United Nations Convention to combat Desertification in those countries experiencing serious drought and/or desertification, particularly in Africa | 14.10.1994 |
| Protocol to amend the International Convention on the establishment of an International Fund for compensation for Oil Pollution Damage of 12.12.1971 | 27.11.1992 |
| Protocol to amend the International Convention on Civil Liability for Oil Pollution damage of 29.11.1969 | 27.11.1992 |
| Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer | 23.11.1992 |
| Convention on Biological Diversity | 5.6.1992 |
| United Nations Framework Convention on Climate Change | 9.5.1992 |
| Agreement on the Conservation of Bats in Europe | 4.12.1991 |
| Protocol on Environmental Protection to the Antarctic Treaty | 4.10.1991 |
| Convention on Environmental Impact Assessment in Transboundary Context | 25.2.1991 |
| Amendment to the Montreal Protocol on Substances that Deplete the Ozone Layer | 29.6.1990 |
| Convention on the Control of Transboundary Movements of Hazardous Wastes and their Disposal | 22.3.1989 |
| Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution concerning the control of emissions of Nitrogen Oxides or their Transboundary Fluxes | 31.10.1988 |
| Montreal Protocol on Substances that Deplete the Ozone Layer | 16.9.1987 |
| Amendments to Articles 6 and 7 of the Convention on Wetlands of International Importance (of 2.2.1971) especially as Waterfowl Habitat | 28.5.1987 |
| Vienna Convention for the Protection of the Ozone Layer | 22.3.1985 |
| Convention on Long-Range Transboundary Air Pollution | 13.11.1979 |
| Convention on the Conservation of Migratory Species of Wild Animals | 23.6.1979 |
| Additional Protocol to the European Convention for the Protection of Animals during International Transport | 10.5.1979 |
| Amendments to Articles I and II of the Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter of 29.12.1972 | 12.10.1978 |
| Amendments to Articles XI, XIV(4)(A) and XV(1)(A) of the Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matter of 29.12.1972 | 12.10.1978 |
| Protocol Relating to the International Convention for the Prevention of Pollution from Ships of 1.11.1973 | 1.6.1978 |
| Protocol to the International Convention on the Establishment of an International Fund for Compensation for Oil Pollution Damage of 18.12.1971 | 19.11.1976 |
| Protocol to the International Convention on Civil Liability for Oil Pollution Damage of 29.11.1969 | 19.11.1976 |
| International Convention for the Prevention of Pollution from Ships (MARPOL) | 2.11.1973 |
| International Convention on International Trade in Endangered Species of Wild Fauna and Flora | 3.3.1973 |
| Convention on the Prevention of Marine Pollution by Dumping of Wastes and Other Matters | 29.12.1972 |
| Convention on Wetlands of International Importance Especially as Waterfowl Habitat (“The Ramsar Convention”) | 2.2.1971 |
| European Convention for the Protection of Animals During International Transport | 13.12.1968 |
| International Convention for the Prevention of Pollution of the Sea by Oil | 12.5.1954 |
| International Convention for the Regulation of Whaling | 2.12.1946 |
| International Convention on the Regulation of Whaling | 24.9.1931 |