Ill. Admin. Code tit. 77 § 100.40
An opportunity shall be afforded all parties to be represented by private legal counsel at the party's own cost and to respond and present evidence and argument. (IAPA Section 10-25) An individual may represent himself or herself. A corporation, limited liability company, partnership, association, certified local health department, municipality or county shall appear and be represented only by an attorney authorized to practice law in the State of Illinois. A shareholder, corporate officer, employee or member of the board of directors may not appear or represent a business entity, association or local health department unless that individual is authorized to practice law in the State of Illinois.
Ill. Admin. Code tit. 77, § 100.40
Added at 34 Ill. Reg. 11768, effective July 30, 2010