Illinois State Chamber of Commerce v. Pollution Control Board

In this court’s previous decision in this matter, the Pollution Control Board was directed to reconsider its issuance of certain rules in light of then recent legislative and administrative developments. (Commonwealth Edison Co. v. Pollution Control Board (1976), 62 Ill. 2d 494.) Following that decision, on July 7, 1977, the Board “validate[d] ” the rules, one member dissenting. Various petitions for review were filed in the appellate court pursuant to section 41 of the Environmental Protection Act (Ill. Rev. Stat. 1977, ch. 1111/2, par. 1041). The three petitions involved in the present…