AUTHORITY: Implementing Section 55.2 and authorized by Section 27 of the Environmental Protection Act [415 ILCS 5/55.2 and 27].
SOURCE: Adopted in R90-9(A) at 15 Ill. Reg. 7959, effective May 10, 1991; amended in R90-9(B) at 16 Ill. Reg. 3114, effective February 14, 1992 amended in R98-9 at 22 Ill. Reg. 11420, effective June 23, 1998; amended in R15-19 at 39 Ill. Reg. 12934, effective September 8, 2015.