Amended effective 10/7/1970; amended January 31, 1972, effective 3/1/1972; amended February 17, 1977, effective 4/1/1977, in counties other than Cook, effective 7/1/1977, in Cook County; amended December 22, 1981, effective 1/15/1982; amended April 27, 1984, effective 7/1/1984; amended March 27, 1985, effective 5/1/1985; amended June 26, 1987, effective 8/1/1987; amended June 19, 1989, effective 8/1/1989; amended June 12, 1992, effective 7/1/1992; amended September 30, 2002, effective immediately; amended December 6, 2006, effective immediately; amended June 11, 2009, effective immediately; amended June 3, 2010, effective 9/15/2010; amended December 12, 2013, effective 1/1/2014; amended March 8, 2019, eff. 7/1/2019; reserved Oct. 27, 2022, eff. 1/1/2023; repealed July 18, 2023, eff. 9/18/2023.