Ill. Admin. Code tit. 92, § 1225.400
b) The tariff's ILLCC designation shall be shown. Immediately under it, the ILLCC designation of the tariff(s) being canceled, if any. If there are numerous tariffs being canceled, the ILLCC designation of those tariffs may be shown:
e) This subsection applies to common carriers. A tariff naming rate shall provide the following information:
i) A reference to the decision or order by number, or a reference to the regulation by section number, and the number of days' notice (where less than statutory notice is authorized) shall be shown if the entire tariff: