SOURCE: Adopted at 5 Ill. Reg. 9767, effective September 17, 1981; codified at 5 Ill. Reg. 10637; amended at 6 Ill. Reg. 10709, effective August 20, 1982; amended at 7 Ill. Reg. 10778, effective August 24, 1983; amended at 8 Ill. Reg. 21589, effective October 23, 1984; amended at 9 Ill. Reg. 15864, effective October 7, 1985; amended at 10 Ill. Reg. 16644, effective September 24, 1986; amended at 12 Ill. Reg. 12034, effective July 7, 1988; emergency amendments at 12 Ill. Reg. 16261, effective September 23, 1988, for a maximum of 150 days; emergency expired February 20, 1989; amended at 13 Ill. Reg. 10589, effective June 15, 1989; amended at 14 Ill. Reg. 14775, effective September 4, 1990; amended at 14 Ill. Reg. 19854, effective December 3, 1990; amended at 15 Ill. Reg. 11586, effective August 2, 1991; amended at 16 Ill. Reg. 11069, effective June 30, 1992; amended at 17 Ill. Reg. 10785, effective July 1, 1993; amended at 17 Ill. Reg. 18796, effective October 19, 1993; amended at 18 Ill. Reg. 10077, effective June 21, 1994; amended at 19 Ill. Reg. 12640, effective August 29, 1995; amended at 20 Ill. Reg. 12351, effective August 30, 1996; amended at 21 Ill. Reg. 9070, effective June 26, 1997; amended at 22 Ill. Reg. 14809, effective August 3, 1998; amended at 23 Ill. Reg. 9055, effective July 28, 1999; amended at 24 Ill. Reg. 8929, effective June 19, 2000; amended at 25 Ill. Reg. 9887, effective July 17, 2001; amended at 26 Ill. Reg. 13809, effective September 5, 2002; amended at 27 Ill. Reg. 749, effective January 6, 2003; amended at 28 Ill. Reg. 11883, effective July 27, 2004; amended at 29 Ill. Reg. 9643, effective June 27, 2005; amended at 30 Ill. Reg. 12143, effective June 28, 2006; amended at 31 Ill. Reg. 13117, effective August 30, 2007; amended at 32 Ill. Reg. 10104, effective June 30, 2008; amended at 33 Ill. Reg. 9691, effective June 26, 2009; amended at 34 Ill. Reg. 12820, effective August 20, 2010; amended at 35 Ill. Reg. 13149, effective July 26, 2011; amended at 36 Ill. Reg. 14408, effective September 5, 2012; amended at 37 Ill. Reg. 20659, effective December 12, 2013; amended at 39 Ill. Reg. 11373, effective August 3, 2015; amended at 40 Ill. Reg. 8568, effective June 13, 2016; amended at 41 Ill. Reg. 8558, effective June 28, 2017; amended at 42 Ill. Reg. 2838, effective January 24, 2018; amended at 42 Ill. Reg. 13100, effective June 22, 2018; amended at 43 Ill. Reg. 9448, effective August 23, 2019; amended at 45 Ill. Reg. 12637, effective September 24, 2021; amended at 46 Ill. Reg. 18576, effective November 2, 2022; amended at 48 Ill. Reg. 3885, effective March 1, 2024.
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