Ill. Admin. Code tit. 35, § 280.101
a) On September 6, 1979, the Pollution Control Board adopted a Final Order in its regulatory proceeding R78-10 which amended its previously adopted particulate emission limitations for steel manufactoring processes. Included in the R78-10 regulations are limitations of visible emissions from the following by-product coke plant emission sources and/or operations:
Rule 203(d)(5)(B)(ii) – charging operations
Rule 203(d)(5)(B)(iv) – coke oven doors
Rule 203(d)(5)(B)(v) – coke oven lids
Rule 203(d)(5)(B)(vi) – coke oven offtake piping