This class includes the activities of international organizations such as the United Nations and its specialized agencies, regional bodies, etc., the Organization of American States, the Council for Mutual Economic Assistance, the European Communities, the Organization for Economic Co-operation and Development, the Organization of African Unity, the League of Arab States, the Customs Co-operation Council, the Organization of Oil Producing and Exporting Countries, the International Monetary Fund, the World Bank, etc.

Exclusions: Administration and operation of diplomatic and consular missions stationed abroad or at offices of international organizations are classified in class 7521 (Foreign affairs) of the country to which they belong.