AUTHORITY: Implementing Section 5-15 of the Illinois Administrative Procedure Act [5 ILCS 100/5-15] and authorized by Section 5 of the Environmental Protection Act [415 ILCS 5/5].
SOURCE: Administrative rules adopted at 3 Ill. Reg. 23, p. 96, effective May 29, 1983; repealed by operation of law effective October 1, 1984; new rules adopted at 9 Ill. Reg. 107, effective December 21, 1984; old Part repealed at 20 Ill. Reg. 4796 and new Part adopted at 20 Ill. Reg. 4798, effective March 5, 1996; amended in R04-9 at 30 Ill. Reg. 14990, effective August 29, 2006; amended in R11-21 at 35 Ill. Reg. 4549, effective March 4, 2011; amended in R15-10 at 38 Ill. Reg. 22834, effective November 24, 2014; amended in R21-17, at 44 Ill. Reg. 14166, effective August 21, 2020; amended in R22-20, at 46 Ill. Reg. 9973, effective May 26, 2022; amended in R25-19 at 48 Ill. Reg. 15643, effective September 18, 2024.