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Subpart D
Article IV
Chapter 207
Mined-out Areas
Mined-out Areas
207.301
Applicability.
207.302
Definitions.
207.303
Approvals.
207.311
Roof areas.
207.312
Lighting.
207.313
Entrances and exits.
207.314
Ventilation.
207.315
Closing underground sections.
207.316
Inspections.
207.317
Record of inspection.
207.318
Storage of flammable liquids.
207.319
Check in/check-out system.