Ill. Admin. Code tit. 74 § 730.120
As used in this Part, unless the context otherwise requires:
"Administrative Hearing" or "Hearing" means the adjudicatory proceeding used to resolve a contested case.
"Complainant" means the Party who initiates the Administrative Hearing.
"Contested Case" has the meaning ascribed in Section 1-30 of the IAPA.
"Hearing Officer" means the Administrative Law Judge as defined in Section 1-15 of the IAPA, and is the person appointed or retained by the Treasurer to preside over the Administrative Hearing proceedings.
"IAPA" means the Illinois Administrative Procedure Act [ 5 ILCS 100 ].
"Notice of Hearing" means a notice of an Administrative Hearing.
"Order" has the meaning ascribed in Section 1-50 of the IAPA.
"Party" has the meaning ascribed in Section 1-55 of the IAPA.
"Person" has the meaning ascribed in Section 1-60 of the IAPA.
"Petition for Hearing" means a request for an Administrative Hearing.
"Proof of Service" means evidence submitted specifying the date, method and person who served a document on another Party. All proofs of service must be signed by the server.
"Respondent" means any Party who answers/responds to a Notice of Charges, Petition for Hearing, or Motion.
"Treasurer" or "State Treasurer" means the duly elected Treasurer of the State of Illinois.
Ill. Admin. Code tit. 74, § 730.120