80 Ill. Adm. Code 1.145
Appearances - Representation
Section 1
Section 1.145 Appearances −
Representation
Parties may choose to represent
themselves, be represented by an appropriate association, or be represented by
an attorney licensed to practice law in the State of Illinois. An attorney
representing a party shall file a written notice of appearance with the
Commission identifying the attorney by name, address, telephone, facsimile
number, email address and attorney registration number.