Ill. Admin. Code tit. 92, § 3280.1330
b) Each application for the renewal of an exemption issued under this Subpart C must:
1) Be submitted to:
Director, Division of Traffic Safety
Illinois Department of Transportation
P.O. Box 19212
1340 N. 9th St.
Springfield, Illinois 62794-9212;
4) Include:
i) At any time there is a material change in the application for renewal or in any information relevant to the exemption, the applicant shall promptly notify the Division. Failure to notify the Division will result in termination of the exemption.
(Recodified from 92 Ill. Adm. Code 386 (Department of Transportation) pursuant to P.A. 104-0025, at 49 Ill. Reg. 12543)