Ill. Admin. Code tit. 44, § 1.1070
For activities related to the construction and operation of the toll highways under the jurisdiction of the Illinois Toll Highway Authority, the construction rules promulgated by the CPO-DOT shall be followed, except as provided in Section 1.4600.
(Source: Amended at 50 Ill. Reg. 2498, effective February 9, 2026)