Information Collection: Safety Standards for Underground Coal Mine Ventilation - Belt Entry Used as an Intake Air Course to Ventilate Working Sections and Areas Where Mechanized Mining Equipment is Being Installed or Removed
🏛 Mine Safety and Health Administration (MSHA)MSHA-2026-0397
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Rules, notices, and supporting material — the primary rule pinned first.
- Supporting & Related Material· Jul 28, 2026