AUTHORITY: Implementing Section 13 and authorized by Section 27 of the Environmental Protection Act. [415 ILCS 5/13 and 27].
SOURCE: Filed with the Secretary of State January 1, 1978; amended at 3 Ill. Reg. 25, p. 190, effective June 21, 1979; codified at 6 Ill. Reg. 7818; amended at 7 Ill. Reg. 5682, effective April 19, 1983; amended at 8 Ill. Reg. 1607, effective January 18, 1984; amended at 8 Ill. Reg. 3691, effective March 14, 1984; amended in R82-7 at 12 Ill. Reg. 11229, effective June 15, 1988; amended in R88-25 at 14 Ill. Reg. 9449, effective June 4, 1990; amended at R18-23 at 47 Ill. Reg. 4641, effective March 23, 2023.