AUTHORITY: Implementing and authorized by Sections 25 and 27 of the Environmental Protection Act [415 ILCS 5/25 and 27].
SOURCE: Adopted in R03-9 at 30 Ill. Reg. 5594, effective March 10, 2006; amended in R18-19 at 42 Ill. Reg. 20487, effective November 1, 2018.