Danube River Basin

• Declaration on the Co-operation for the Creation of a Lower Danube Green Corridor. Republic of Bulgaria, Republic of Moldova, Romania, Ukraine
• Convention on Cooperation for the Protection and Sustainable Use of the Danube River. Done in Sofia, 29 June 1994 English / German
• Supplementary Protocol of 26 March 1998 to the Convention concerning the Regime of Navigation on the Danube. Signed at Belgrade
• Treaty Between the Hungarian People's Republic and the Czechoslovak Socialist Republic Concerning the Construction and Operation of the Gabcikovo-Nagymaros System of Locks, in force on 30 June 1978
• Convention (with annex) concerning fishing in the waters of the Danube. Signed at Bucharest, on 29 January 1958; Came into force on 20 December 1958. Union of Soviet Socialist Republics, Yugoslavia, Bulgaria and Romania
• Agreement Between the Czechoslovak Republic and the Hungarian People's Republic Concerning the Settlement of Technical and Economic Questions Rekating to Frontier Watercourses. Signed at Prague, on 16 April 1954
• Agreement Between the Government of the Republic of Austria and the Government of the Federal Republic of Germany and of the Free State of Bavaria Concerning the Donaukraftwerk-Jochenstein-Aktiengesellschaft (Danube Power Plant and Jochenstein Joint-Stock Company), concluded, 13 February 1952; in force, 13 February 1952
• Convention concerning the regime of navigation on the Danube (with annexes and supplementary protocol). Signed at Belgrade, on 18 August 1948; Came into force on 11 May 1949. Union of Soviet Socialist Republics, Bulgaria, Czechoslovakia, Hungary, Romania, Ukrain Soviet Socialist Republics and Yugoslavia
• Supplementary Protocol to the Convention concerning the Regime of Navigation on the Danube. Signed at Belgrade, on 18 August 1948
• Convention Instituting the Definitive Status of the Danube (1924) 26 L.N.T.S. 17

Elbe River Basin

• Convention between the Federal Republic of Germany and the Czech and Slovak Federal Republic and the European Economic Community on the International Commission for the Protection of the Elbe, Done at Magdeburg on 8 October 1990

Meuse River Basin

• 1994 Treaty for the International Commission for the protection of the Meuse and Scheldt Rivers (Français/French)
• 1992 Agreement on the Protection of the River Meuse (Français/French)

Mosel River Basin

• Protocol concerning the establishment of an International Commission to Protect the Mosel against Pollution. Signed at Paris on 20 December 1961; Came into force on 1 July 1962. France, Federal Republic of Germany, and Luxembourg (English) (Français/French) (Deutsch/German)
• Third Protocol amending the Convention on the canalization of the Mosel. Done in Trier, 12 May 1987; in force, 1 January 1988
• Second Protocol amending the Convention on the Canalization of the Mosel.21 June 1983
• Protocol amending the Convention on the Canalization of the Mosel. Done in Trier, 28 November 1974; in force, 2 July 1977
• Regulation for Procedures before the Appeal Board of the Moselle River Commission. Done in Trier, 9 October 1970; in force, 1 January 1972
• Convention on the Canalization of the Mosel. Done in Luxembourg, 27 October 1956

Oder River Basin

• Convention on the International Commission for the Protection of the Ofder Against Pollution. Done in Wroclaw, 11 April 1996 (Czech Republic, Germany and Poland)
• Convention on the International Commission for the Protection of the Oder. Done in Wroclaw, 11 April 1964

Rhine River Basin

• Convention on the Protection of the Rhine. Done at Rotterdam, January 22, 1998. Federal Republic of Germany, France, Luxembourg, the Netherlands, Switzerland, and the European Union (English)
• Additional Protocol No. 1 to the Revised Convention on Navigation on the Rhine. Done in Strasbourg, 25 October 1972; in force, 27 February 1975 (English)
• Additional Protocol No. 2 to the Revised Convention on Navigation on the Rhine. Done in Strasbourg, 17 October 1979; in force 1 September 1982 (English)
• Additional Protocol No. 3 to the Revised Convention on Navigation on the Rhine. Done in Strasbourg, 17 October 1979; in force 1 September 1982 (English)
• Additional Protocol No. 4 to the Revised Convention on Navigation on the Rhine. Done in Strasbourg, 25 April 1989 (English)
• Additional Protocol No. 5 to the Revised Convention on Navigation on the Rhine. Done in Strasbourg, 28 April 1999 (Français/French)
• Additional Protocol No. 6 to the Revised Convention on Navigation on the Rhine. Done in Strasbourg, 21 October 1999 (Français/French)
• Additional Protocol No. 7 to the Revised Convention on Navigation on the Rhine. Done in Strasbourg, 27 November 2002 (Français/French)
• Supplementary Agreement to the 1963 Agreement on the International Commission for the Protection of the Rhine against Pollution. Done in Bonn, 3 December 1976; in force 1 February 1979 (English)
• Convention on the protection of the Rhine against pollution from chlorides (with annexes and exchanges of letters dated at Neuilly on 29 April 1983, at Bonn on 4 May 1983, at The Hague on 4 May 1983, at Luxembourg on 13 May 1983 and at Berne on 13 May 1983). Concluded at Bonn on 3 December 1976. Switzerland, Federal Republic of Germany, France, Luxembourg and the Netherlands (English)
• Agreement for the protection of the Rhine against chemical pollution (with annexes). Signed at Bonn on 3 December 1976 Came into force on 1 February 1979. 16 I.L.M. 242 (1976). Switzerland, European Economic Community, Federal Republic of Germany, France, Luxembourg and the Netherlands (English)
• Convention Between the French Republic and the Federal Republic of Germany Concerning Development of the Rhine Between Strasbourg/Kehl and Lauterbourg/Neuburweier . Done on 4 July 1969
• Convention to amend the Revised Convention on the Navigation of the Rhine. Done in Strasbourg, 20 November 1963; in force, 14 April 1967
• Agreement on the International Commission for the protection of the Rhine against pollution (with protocol of signature). Signed at Bern on 29 April 1963; Came into force on 1 May 1965. Switzerland, Federal Republic of Germany, France, Luxembourg and Netherlands
• Revised Convention on Navigation on the Rhine. Done in Mannheim, 17 October 1868; in force 1 July 1869 (Deutsch/German) (Français/French)

Lake Constance

• Convention concerning navigation on Lake Constance (with annex and additional protocol). Signed on Lake Constance on 1 June 1973; Came into force on 1 January 1976. Austria, Federal Republic of Germany and Switzerland (English) (Deutsch/German)
• Agreement regulating the withdrawal of water from Lake Constance (with Final Protocol). Signed at Berne, on 30 April 1966. Came into force on 25 November 1967. Switzerland, Austria and Federal Republic of Germany
• Convention on the Protection of Lake Constance Against Pollution, UN Legislative Texts, UN Doc. ST/LEG/SER.B./12 438 (1960) (Deutsch/German)

Lake Inari

• Protocol concerning amendments to the Regulations of 24 April 1947 for the regulation of Lake Inari in connexion with the use of the Niskakoski Dam and to the Protocol of 29 April 1954 concerning amendments ot paragraph 2 of the said Regulations. Signed at Oslo, on 24 February 1956; Came into force on 24 February 1956. Finland, Norway and Union of Soviet Socialist Republics
• Agreement concerning the Regulations of Lake Inari by means of the Kaitakoski Hydroelectric Power Station and Dam. Signed at Moscow, on 29 April 1959; Came into force on 29 April 1959. Union of Soviet Socialist Republics, Norway and Finland

Lake Lanoux

• Agreement Between the Government of the French Republic and the Spanish Government Relating to Lake Lanoux. In force 27 January 1970

Prespa Lake

• Agreement Declaration on the Creation of the Prespa Park and the Environmental Protection and Sustainable Development of the Prespa Lakes and their Surroundings

Franco-Swiss Genevese Aquifer

• Convention relative a la protection, a l'utilisation, a la realimentation et au suivi de la Nappe Souterraine Franco-Suisse du Genevois. In force 1 January 2008 (Français/French) (Unofficial English Translation)
• Arrangement relatif a la Protection, a l'Utilization et a la Realimentation de la Nappe souterraine franco-suisse du Genevois (Arrangement on the Protection, Utilization and Recharge of the Franco-Swiss Genevese Aquifer) (Sept. 1977) (Unofficial English Translation)

Directives of the European Parliament and of the Council

• Directive 2006/118/EC of the European Parliament and of the Council on the protection of groundwater against pollution and deterioration, 12 December 2006

• Regulation (EC) No 648/2004 of the European Parliament and of the Council of 31 March 2004 on detergents

• Directive of the European Parliament and of the Council 2000/EC/60, Establishing a Framework for Community Action in the Field of Water Policy, 23 October 2000

Directives of the European Economic Community

• Council Directive 80/778, of 15 July 1980 Relating to the Quality of Water Intended for Human Consumption, 1980 O.J. (L 229) 1, amended by Directive 81/858 consequent upon the Accession of Greece, 1981 O.J. (L 319) 19, and the Act of Accession of Spain and Portugal of 12 June 1985, 1985 O.J. (L 302) 9
• Council Directive 80/68/EEC of 17 December 1979 On the Protection of Groundwater Against Pollution Caused by Certain Dangerous Substances
• Council Directive 78/659/EEC of 18 July 1978 On the Quality of Fresh Waters Needing Protection or Improvement in Order to Support Fish Life
• Council Directive 77/795/EEC of 12 December 1976 Concerning Establishing a Common Procedure for the Exchange of Information on the Quality of Surface Fresh Water in the Community
• Council Directive 76/464/EEC of 4 May 1976 on Pollution Caused by Certain Dangerous Substances Discharged into the Aquatic Environment of the Community
• Council Directive 76/160/EEC of 8 December 1975 Concerning the Quality of Bathing Water
• Council Directive 75/440/EEC of 16 June 1975 Concerning the Quality Required of Surface Water Intended for the Abstraction of Drinking Water in the Member States
• Council Directive 73/405/EEC of 22 November 1973 On the Approximation of the Law of the Member States Relating to Methods of Testing the Biodegradability of Anionic Surfactants
• Council Directive 73/404/EEC of 22 November 1973 On the Approximation of the Laws of Member States Relating to Detergents

• UN/ECE Convention on the Protection and Use of Transboundary Watercourses and International Lakes, done at Helsinki, 17 March 1992. 31 I.L.M. 1312 (1992)
• UN/ECE Draft Protocol on Water and Health to the 1992 Convention on the Protection and Use of Transboundary Watercourses and International Lakes (final draft as adopted June 17, 1999)
• UN/ECE Convention on Environmental Impact Assessment in a Transboundary Context, 30 I.L.M. 800 (1991)
• UN/ECE Charter on Ground-Water Management, U.N. Doc. E/ECE/1197, ECE/ENVWA/12, U.N. Sales No. E.89.II.E.21 (1989)
• Recommendation to the Governments of Southern European Countries Concerning Selected Water Problems, approved by the Committee on Water Problems. Geneva, 1972
• Recommendation to ECE Governments Concerning River Basin Management, approved by the Committee on Water Problems. Geneva, 1971
• Recommendation to ECE Governments Concerning the Protection of Ground and Surface Waters Against Pollution by Oil and Oil Products, approved by the Committee on Water Problems. Geneva, 1970
• Recommendation No. 4 Submitted to Governments by the Committee on Electric Power With a View to Promoting the Hydroelectric Development of Successive Rivers in Europe. Geneva, 26 May 1954
• Recommendation No. 2 Submitted to Governments by the Committee on Electric Power With a View to Facilitating the Hydroelectric Development of Contiguous Rivers and Lakes. Geneva, 3 October 1951

• Agreement between the Republic of Poland and the Federal Republic of Germany on Marking and Maintenance of the Common Border on Land Sections and Frontier Waters and on Establishment of the Standing Polish-German Commission. Signed at Warsaw, 16 September 2004; in force, 25 April 2010.
• Agreement between Finland and Sweden Concerning Transboundary Rivers. Done at Stockholm, 11 November 2009; In force 1 October 2010
• Frontier Rivers Agreement of 16 Sept. 1971. 825 U.N.T.S. 272. Finland and Sweden
• Convention Concerning the Protection of Italo-Swiss Waters Against Pollution. Singed at Rome 20 April 1972
• Agreement Between the Peoples Republic of Bulgaria and the Republic of Turkey Concerning Co-operation in the Use of the Waters of Rivers Flowing Through the Territory of Both Countries (Maritsa/Marica, Tundzha, Veleka, Rezovska Rivers), Done on 23 October 1968
• Agreement Between the government of the Polish People's Republic and the Government of the Union of Soviet Socialist republics Concerning the Use of the Water Resources in Frontier Waters. Signed at Warsaw, 17 July 1964; in force, 16 February 1965
• Treaty Between the Hungarian People's Republic and the Republic of Austria Concerning the Regulation of Water Economy Questions in the Frontier Region, signed at Vienna, 9 April 1956; in force, 31 July 1956
• Agreement Between the Government of the Czechoslovak Republic and the Government of the Polish People's Republic Concerning the Use of Water Resources in Frontier Waters; signed at Prague 212 March 1958; in force 7 August 1958

• Agreement on reciprocal access to fishing in the Skagerrak and the Kattegat (with Protocol). Signed at Copenhagen, on 19 December 1966; Came into force on 7 August 1967. Denmark, Norway and Sweden
• Agreement Between the Government of the Federal People's Republic of Yugoslavia and the Government of the People's Republic of Albania Concerning Water Economy Questions, Together With the Statute of the Yugoslav-Albanian Water Economic Commission and the Protocol Concerning Fishing in Frontier Lakes and Rivers. Signed at Belgrade, 5 December 1956; in force, 6 August 1957
• Agreement Between the Government of the Federal People's Republic of Yugoslavia and the Government of the Hungarian People's Republic Together with the Statute of the Yugoslav-Hungarian Water Economy Commission, Aug. 8, 1955
• Protocol to establish a tripartite standing committee on polluted waters. Signed at Brussels, on 8 April 1950; Came into force on 8 April 1950. Belgium, France and Luxembourg