8 Ill. Adm. Code 1.285
Person Representing Organization, Association or Another Person
Section 1
Section 1.285 Person
Representing Organization, Association or Another Person
A person may represent an
association, organization or other group or an individual who is unable to
attend. The Director or administrative law judge shall request such person to
present proof indicating he is authorized to represent the association, organization
or another individual when not familiar with the person. Acceptable proof
means a letter, affidavit or verbal verification from an officer of the
organization or person being represented.