Ill. Admin. Code tit. 62, § 220.100
a) Highwalls, pits and spoil banks; plans; filing of plan.
b) Stripping; loose material.
Loose hazardous material shall be stripped for a safe distance from the top of pit or highwalls, and the loose unconsolidated material shall be sloped to the angle of repose, or barriers, baffle boards, screens, or other devices be provided that afford equivalent protection; or a combination of the preceding be used to assure the safety of the workmen.
c) Box cuts; spoil material placement.
When box cuts are made, necessary precautions shall be taken to minimize the possibility of spoil material rolling into the pit.
d) Benches.
To insure safe operation, the width and height of benches shall be governed by the type of equipment to be used and the operation to be performed.
e) Ground control; inspection and maintenance; general.
f) Scaling highwalls; general.
Hazardous areas shall be scaled before any other work is performed in the hazardous area. When scaling of highwalls is necessary to correct conditions that are hazardous to persons in the area, a safe means shall be provided for performing such work.
g) Highwalls; men working.
h) Drilling; general.
i) Relocation of drills; safeguards.
j) Drill; operation.
k) Collaring holes.
l) Drill holes; guarding.
Drill holes large enough to constitute a hazard shall be covered or guarded.
m) Jackhammers; operation; safeguards.
Men operating or working near jackhammers or jackleg drills, or other drilling machines shall position themselves so that they will not be struck or lose their balance if the drill steel breaks or sticks.
n) Air drills; safeguards.
Air shall be turned off and bled from the air hoses before hand-held air drills are moved from one working area to another.