Ill. Admin. Code tit. 56, § 220.1100 – Procedure and timetable

a) The Director shall advise in writing each employer for whom a permit has been denied, suspended, or revoked of the hearing process.
b) The employer may within 21 days of the denial, suspension or revocation request an informal office hearing.
c) If the informal hearing does not resolve the problem, the employer will have the opportunity to request, within 21 days of the informal hearing, a formal hearing under the provisions of the Illinois Administrative Procedure Act.