2 Ill. Adm. Code 1620.460
Service
Section 1620.460 Service
After filing the complaint,
the
petitioner shall serve a
file-stamped
copy of
the complaint
on
all respondents and on each respondent's ultimate jurisdictional authority in
the same manner as process is served under
Part 2 (Process) of the Civil
Practice Law of
the Code of Civil Procedure
[735 ILCS 5/Art. II, Part
2]. [5 ILCS 430/20-50(d)] Petitioner shall file the proof of service with the
Commission.