AUTHORITY: Implementing and authorized by Sections 19.1 through 19.9 of the Environmental Protection Act [415 ILCS 5/19.1 through 19.9].

SOURCE: Emergency rule adopted at 21 Ill. Reg. 10091, effective July 17, 1997, for a maximum of 150 days; emergency expired on December 13, 1997; adopted at 22 Ill. Reg. 3782, effective February 10, 1998; amended at 24 Ill. Reg. 16245, effective November 1, 2000; emergency amendment at 33 Ill. Reg. 8674, effective June 2, 2009, for a maximum of 150 days; amended at 33 Ill. Reg. 15575, effective October 28, 2009; emergency amendment at 34 Ill. Reg. 8406, effective June 10, 2010, for a maximum of 150 days; emergency expired November 6, 2010; amended at 34 Ill. Reg. 17661, effective November 8, 2010; former Part repealed at 41 Ill. Reg. 8052 and new Part adopted at 41 Ill. Reg. 8055, effective July 1, 2017; amended at 43 Ill. Reg. 11209, effective October 1, 2019; amended at 48 Ill. Reg. 3780, effective February 27, 2024.