The Helsinki Commission, or HELCOM, is the governing body of the 'Convention on the Protection of the Marine Environment of the Baltic Sea Area' - more commonly known as the Helsinki Convention.
Under the Barcelona Convention, countries bordering the Mediterranean cooperate together on the environmental protection of the Mediterranean Sea. All twenty-one Mediterranean coastal States and the European Communities are Contracting Parties to the Barcelona Convention.
The Copenhagen Agreement is an agreement between Denmark, Finland, Iceland, Norway and Sweden that relates to the response to oil and chemical discharges in the Baltic Sea and Kattegatt.
The Agreement for cooperation in dealing with pollution of the North Sea by oil and other harmful substances (the Bonn Agreement) was signed in Bonn, Germany on 9 June 1969.
The Convention on the Protection of the Black Sea against Pollution (the Bucharest Convention) was adopted in 1992 and entered into force in 1994. The contracting parties to the Convention are Bulgaria, Romania, Russian Federation, Georgia, Turkey and Ukraine.
The Lisbon Agreement relates to the protection of the coasts and waters of the north-east Atlantic against pollution from the southern Channel to the Moroccan coasts.