International Authority for the Ruhr significant event Treaty of Paris
The International Authority for the Ruhr (IAR) was an international body established in 1949 by the Western Allies to regulate the coal and steel industries of the Ruhr area in West Germany. Its seat was in Düsseldorf.
The Ruhr Authority was set out in the communiqué issued on 7 June 1948, after the London Six-Power Conference between the United States of America, the United Kingdom, France and the Benelux countries. It was abolished following the 1951 Treaty of Paris, and its activities were given to the European Coal and Steel Community (ECSC).  An Agreement to terminate the IAR was signed at Paris on 19 October 1951, and agreement on termination of the functions of the IAR came in to force on 25 June 1952.