Section 415 ILCS 5/22.24 - [Effective Until 1/1/2025](a) Beginning January 1, 1990, no person may operate any landfill in any county with a population over 275,000, as determined by the latest federal decennial census, unless facilities are provided at such landfills which are appropriate for cleaning mud, gravel, waste and other material from the site off of the wheels and undercarriages of trucks and other vehicles exiting the site.(b) Beginning January 1, 1990, no person may drive any truck or trailer off the site of a landfill in any county with a population over 275,000, as determined by the latest federal decennial census, without first cleaning any mud, gravel, waste or other material from the site off of the wheels and undercarriage of the vehicle.This section is set out more than once due to postponed, multiple, or conflicting amendments.