AUTHORITY: Authorized by Sections 26 and 27 of the Environmental Protection Act [415 ILCS 5/26 and 27] and implementing Sections 5, 39, 39.5, 40, 40.1, 40.2, and 57 of the Act [415 ILCS 5/5, 39, 39.5, 40, 40.1, 40.2 and 57].
SOURCE: Filed with Secretary of State January 1, 1978; amended 4 Ill. Reg. 52, page 41, effective December 11, 1980; codified 6 Ill. Reg. 8357; amended in R93-24 at 18 Ill. Reg. 4244, effective March 8, 1994; amended in R94-11 at 18 Ill. Reg. 16594, effective November 1, 1994; old Part repealed, new Part adopted in R00-20 at 25 Ill. Reg. 406, effective January 1, 2001; amended in R04-24 at 29 Ill. Reg. 8811, effective June 8, 2005; amended in R14-21 at 39 Ill. Reg. 2369, effective January 27, 2015; amended in R16-17 at 40 Ill. Reg. 7980, effective May 20, 2016; amended in R17-18 at 41 Ill. Reg. 10084, effective July 5, 2017; amended in R19-1 at 44 Ill. Reg. 14897, effective September 4, 2020.