820 ILCS 250/2

It shall be the duty of every employer to furnish each employee who performs duties which involve or may reasonably be expected to involve entering an underground sewer, including but not limited to such employees as utility workers, firemen, policemen, paramedics, investigators and personnel involved with maintenance and repair work, information concerning the prevention of personal injuries and diseases by contact with poisonous or deleterious materials, vapors, gases or fumes.