SOURCE: Adopted at 14 Ill. Reg. 15519, effective September 10, 1990; amended at 15 Ill. Reg. 13171, effective August 21, 1991; amended at 16 Ill. Reg. 14435, effective September 8, 1992; amended at 18 Ill. Reg. 754, effective January 11, 1994; amended at 18 Ill. Reg. 10362, effective June 15, 1994; amended at 19 Ill. Reg. 13050, effective August 30, 1995; amended at 20 Ill. Reg. 15344, effective November 18, 1996; amended at 23 Ill. Reg. 5105, effective March 31, 1999; amended at 24 Ill. Reg. 1954, effective January 19, 2000; amended at 25 Ill. Reg. 2100, effective January 17, 2001; amended at 26 Ill. Reg. 8978, effective June 5, 2002; amended at 26 Ill. Reg. 12749, effective August 12, 2002; amended at 27 Ill. Reg. 9218, effective June 2, 2003; amended at 28 Ill. Reg. 1152, effective January 4, 2004; emergency amendment at 28 Ill. Reg. 12479, effective August 18, 2004, for a maximum of 150 days; amended at 28 Ill. Reg. 15636, effective November 19, 2004; amended at 29 Ill. Reg. 19227, effective November 10, 2005; amended at 30 Ill. Reg. 5637, effective March 8, 2006; amended at 32 Ill. Reg. 10397, effective June 25, 2008; amended at 36 Ill. Reg. 13218, effective August 3, 2012; amended at 38 Ill. Reg. 547, effective December 19, 2013; amended at 40 Ill. Reg. 2002, effective January 8, 2016.
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