1. LawStack
  2. Title 30 - Mineral Resources
  3. Chapter I - MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
  4. Subchapter K - METAL AND NONMETAL MINE SAFETY AND HEALTH
  5. Part 57 - SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
  6. Subpart D - Air Quality, Radiation, Physical Agents, and Diesel Particulate Matter
  7. Topic - Radiation—Underground Only
  8. 30 CFR § 57.5045
30 CFR § 57.5045
Posting of inactive workings
July 29, 2020
CFR

Inactive workings in which radon daughter concentrations are above 1.0 WL, shall be posted against unauthorized entry and designated by signs indicating them as areas in which approved respirators shall be worn.

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§ 57.5044 Respirators
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§ 57.5046 Protection against radon gas

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