The Chief of Protocol shall maintain as a part of the official files of the Department of State a cumulative roster of all persons who have been duly notified as foreign officials or designated as official guests under this part. The roster will reflect the name, position, nationality, and foreign government or international organization concerned or purpose of visit as an official guest and reflect the date the person was accorded recognition as being “duly notified to the United States” or designated as an official guest and the date, if any, of termination of such status.