SOURCE: Filed and effective June 17, 1958; codified at 8 Ill. Reg. 13838; amended at 13 Ill. Reg. 10687, effective June 16, 1989; amended at 14 Ill. Reg. 6804, effective April 19, 1990; amended at 15 Ill. Reg. 122, effective December 24, 1990; amended by emergency rulemaking at 23 Ill. Reg. 9546, effective July 29, 1999, for a maximum of 150 days; amended at 23 Ill. Reg. 14753, effective December 8, 1999; amended at 24 Ill. Reg. 9909, effective June 23, 2000; emergency amendment at 24 Ill. Reg. 10759, effective July 6, 2000, for a maximum of 150 days; amended at 24 Ill. Reg. 17800, effective November 28, 2000; amended at 25 Ill. Reg. 937, effective January 8, 2001; emergency amendment at 26 Ill. Reg. 9027, effective June 10, 2002, for a maximum of 150 days; emergency expired November 5, 2002; amended at 27 Ill. Reg. 1647, effective January 15, 2003; emergency amendment at 27 Ill. Reg. 10529, effective July 1, 2003, for a maximum of 150 days; emergency expired November 27, 2003; amended at 28 Ill. Reg. 3911, effective February 13, 2004; amended at 32 Ill. Reg. 17580, effective October 27, 2008; amended at 42 Ill. Reg. 23186, effective November 29, 2018; amended at 43 Ill. Reg. 8915, effective July 30, 2019; amended at 44 Ill. Reg. 6069, effective April 3, 2020; amended at 46 Ill. Reg. 6768, effective April 12, 2022; amended at 47 Ill. Reg. 5806, effective April 4, 2023.
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