- a) Persons filing papers with the Board shall simultaneously serve copies on all parties to the proceeding with proof of service in the manner authorized by the Civil Practice Act [735 ILCS 5/Art. II].
- b) All papers required to be filed with the Board must be filed at the Board's principal office at 100 W. Randolph, Suite 11-100, Chicago, Illinois 60601, during regular business hours.
(Source: Amended at 18 Ill. Reg. 7419, effective April 29, 1994)