Ill. Admin. Code tit. 86 § 511.220
The Department may, after notice and a hearing, revoke the certificate of registration of any person who violates any of the provisions of the Electricity Excise Tax Law. Before revocation of a certificate of registration, the Department shall, within 90 days after non-compliance and at least 7 days prior to the date of the hearing, give the person so accused notice in writing of the charge against him or her, and on the date designated shall conduct a hearing upon this matter. The lapse of such 90-day period shall not preclude the Department from conducting revocation proceedings at a later date if necessary. Any such hearing held shall be conducted by the Director or by any officer or employee of the Department designated in writing by the Director. [35 ILCS 640/2-7.6]
Ill. Admin. Code tit. 86, § 511.220