AUTHORITY: Implementing Sections 7.2 and 22.4 and authorized by Section 27 of the Environmental Protection Act [415 ILCS 5/7.2, 22.4, and 27].
SOURCE: Adopted in R95-20 at 20 Ill. Reg. 11291, effective August 1, 1996; amended in R96-10/R97-3/R97-5 at 22 Ill. Reg. 944, effective December 16, 1997; amended in R98-12 at 22 Ill. Reg. 7650, effective April 15, 1998; amended in R99-15 at 23 Ill. Reg. 9502, effective July 26, 1999; amended in R00-13 at 24 Ill. Reg. 9874, effective June 20, 2000; amended in R05-8 at 29 Ill. Reg. 6058, effective April 13, 2005; amended in R06-16/R06-17/R06-18 at 31 Ill. Reg. 1352, effective December 20, 2006; amended in R16-7 at 40 Ill. Reg. 12268, effective August 9, 2016; amended in R17-14/R17-15/R18-12/R18-31 at 42 Ill. Reg. 25200, effective November 19, 2018; amended in R19-11 at 43 Ill. Reg. 6095, effective May 2, 2019; amended in R20-8/R20-16 at 44 Ill. Reg. 15520, effective September 3, 2020.