AUTHORITY: Implementing Sections 10, 39 and 39.5 and authorized by Section 27 of the Environmental Protection Act [415 ILCS 5/10, 27, 39 and 39.5].
SOURCE: Adopted at 23 Ill. Reg. 6477, effective May 15, 1999; amended in R11-20 at 35 Ill. Reg. 16615, effective September 30, 2011.