AUTHORITY: Implementing and authorized by the Illinois Workers' Compensation Act [820 ILCS 305].
SOURCE: Filed and effective March 1, 1977; amended at 5 Ill. Reg. 5533, effective May 12, 1981; amended at 6 Ill. Reg. 8040, effective July 1, 1982; codified at 7 Ill. Reg. 2352; emergency amendment at 14 Ill. Reg. 4929, effective March 9, 1990, for a maximum of 150 days; amended at 14 Ill. Reg. 13161, effective August 1, 1990; emergency amendment at 30 Ill. Reg. 1912, effective February 1, 2006, for a maximum of 150 days; amended at 30 Ill. Reg. 11743, effective June 22, 2006; amended at 33 Ill. Reg. 2850, effective February 1, 2009; emergency amendment at 34 Ill. Reg. 10222, effective July 6, 2010, for a maximum of 150 days; emergency rule repealed by emergency amendment at 34 Ill. Reg. 17471, effective October 28, 2010, for the remainder of the 150 days; amended at 36 Ill. Reg. 16349, effective November 5, 2012; amended at 36 Ill. Reg. 17108, effective November 20, 2012; recodified from 50 Ill. Adm. Code 7110 to 50 Ill. Adm. Code 9110 at 39 Ill. Reg. 9616; amended at 40 Ill. Reg. 15823, effective November 9, 2016; amended at 44 Ill. Reg. 2583, effective January 24, 2020; amended at 47 Ill. Reg. 6186, effective April 13, 2023.