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SOURCE: Adopted at 14 Ill. Reg. 2617, effective February 1, 1990; amended at 15 Ill. Reg. 7748, effective May 7, 1991; amended at 16 Ill. Reg. 11847, effective July 13, 1992; amended at 18 Ill. Reg. 7857, effective May 6, 1994; amended at 20 Ill. Reg. 6535, effective April 30, 1996; amended at 22 Ill. Reg. 5690, effective March 4, 1998; amended at 22 Ill. Reg. 17007, effective September 30, 1998; amended at 25 Ill. Reg. 7283, effective May 19, 2001; amended at 26 Ill. Reg. 8962, effective June 5, 2002; amended at 29 Ill. Reg. 10116, effective July 1, 2004; amended at 29 Ill. Reg. 711, effective December 20, 2004; amended at 42 Ill. Reg. 2941, effective January 24, 2018.
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