 From 1945 to 1947, the IG Farben Building was the location of the Supreme Headquarters, Allied European Forces, and was the headquarters for the US occupation forces and Military Governor.On May 10, 1947, permanent orders to military personnel prohibited further reference to the building as the "IG Farben Building", and instead called for it to be referred to as "The Headquarters Building, European Command".The United States High Commissioner for Germany (HICOG) and his staff occupied the building from 1949 to 1952.