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SOURCE: Adopted at 14 Ill. Reg. 15560, effective September 10, 1990; amended at 15 Ill. Reg. 13189, effective August 21, 1991; amended at 16 Ill. Reg. 5362, effective March 23, 1992; amended at 16 Ill. Reg. 14715, effective September 14, 1992; amended at 18 Ill. Reg. 783, effective January 11, 1994; amended at 19 Ill. Reg. 13077, effective August 30, 1995; amended at 20 Ill. Reg. 15365, effective November 18, 1996; amended at 23 Ill. Reg. 5133, effective March 31, 1999; amended at 24 Ill. Reg. 1991, effective January 19, 2000; amended at 25 Ill. Reg. 2126, effective January 17, 2001; amended at 26 Ill. Reg. 8997, effective June 5, 2002; amended at 27 Ill. Reg. 9238, effective June 2, 2003; amended at 29 Ill. Reg. 19251, effective November 10, 2005; amended at 32 Ill. Reg. 10420, effective June 25, 2008; amended at 36 Ill. Reg. 13242, effective August 3, 2012; amended at 37 Ill. Reg. 18332, effective November 4, 2013; amended at 40 Ill. Reg. 2036, effective January 8, 2016; emergency amendment at 42 Ill. Reg. 21464, effective November 19, 2018, for a maximum of 150 days; amended at 43 Ill. Reg. 3993, effective March 14, 2019.
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