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Ground Control—Surface and Underground | Midpage
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Virginia Administrative Code
Title 4
25
Chapter 40
Part III
Ground Control—Surface and Underground
390
Stability requirements.
400
Open pit mine rims.
410
Benches.
420
Scaling of hazardous areas.
430
Hazardous conditions.
440
Installation of rock bolts.
450
Correction of unsafe conditions.
460
Examination for unsafe conditions.
470
Keeping clear of equipment.
480
Trimming of faces.