SOURCE: Adopted at 14 Ill. Reg. 15507, effective September 10, 1990; amended at 15 Ill. Reg. 13161, effective August 21, 1991; amended at 16 Ill. Reg. 14425, effective September 8, 1992; amended at 18 Ill. Reg. 743, effective January 11, 1994; amended at 19 Ill. Reg. 13041, effective August 30, 1995; amended at 20 Ill. Reg. 15335, effective November 18, 1996; amended at 23 Ill. Reg. 5096, effective March 31, 1999; amended at 24 Ill. Reg. 1944, effective January 19, 2000; amended at 25 Ill. Reg. 2092, effective January 17, 2001; amended at 26 Ill. Reg. 9009, effective June 5, 2002; amended at 26 Ill. Reg. 12766, effective August 12, 2002; amended at 27 Ill. Reg. 9251, effective June 2, 2003; amended at 28 Ill. Reg. 1161, effective January 4, 2004; emergency amendment at 28 Ill. Reg. 6654, effective April 14, 2004, for a maximum of 150 days; emergency expired September 10, 2004; amended at 29 Ill. Reg. 19264, effective November 10, 2005; amended at 30 Ill. Reg. 5642, effective March 8, 2006; amended at 32 Ill. Reg. 10433, effective June 25, 2008; amended at 37 Ill. Reg. 18346, effective November 4, 2013; amended at 40 Ill. Reg. 2050, effective January 8, 2016; emergency amendment at 41 Ill. Reg. 15380, effective December 19, 2017, for a maximum of 150 days; amended at 42 Ill. Reg. 5918, effective March 14, 2018; amended at 44 Ill. Reg. 18603, effective November 9, 2020.
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