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SOURCE: Adopted at 14 Ill. Reg. 15512, effective September 10, 1990; amended at 15 Ill. Reg. 13167, effective August 21, 1991; amended at 16 Ill. Reg. 14431, effective September 8, 1992; amended at 18 Ill. Reg. 749, effective January 11, 1994; amended at 19 Ill. Reg. 13046, effective August 30, 1995; amended at 20 Ill. Reg. 15340, effective November 18, 1996; amended at 23 Ill. Reg. 5101, effective March 31, 1999; amended at 24 Ill. Reg. 1949, effective January 19, 2000; amended at 25 Ill. Reg. 2097, effective January 17, 2001; amended at 26 Ill. Reg. 9014, effective June 5, 2002; amended at 27 Ill. Reg. 9257, effective June 2, 2003; amended at 29 Ill. Reg. 19271, effective November 10, 2005; amended at 32 Ill. Reg. 10440, effective June 25, 2008; amended at 37 Ill. Reg. 18355, effective November 4, 2013; amended at 40 Ill. Reg. 2057, effective January 8, 2016.
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