General office. The general office of the Board shall be maintained at 180 N. LaSalle St., Suite 2015, Chicago IL 60601. At that office, all accounts, records, files, books, reports, correspondence and other data or documents relating to the operations of the Board and the agency under its jurisdiction shall be kept and all administrative matters shall be processed under the direction and authority of the Director assisted by adequate administrative personnel.
Ill. Admin. Code tit. 74, § 800.110