SOURCE: Adopted at 19 Ill. Reg. 13935, effective October 1, 1995; emergency amendment at 20 Ill. Reg. 12522, effective September 1, 1996, for a maximum of 150 days; amended at 21 Ill. Reg. 955, effective January 7, 1997; amended at 22 Ill. Reg. 7044, effective May 1, 1998; emergency amendment at 23 Ill. Reg. 7772, effective June 28, 1999, for a maximum of 150 days; amended at 23 Ill. Reg. 13935, effective November 2, 1999; amended at 25 Ill. Reg. 15257, effective November 1, 2001; amended at 48 Ill. Reg. 18246, effective December 12, 2024.