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. Subject Group - Radiation—Underground Only
  8. 30 CFR § 57.5038
30 CFR § 57.5038
Annual exposure limits
May 28, 2026
CFR

§ 57.5038 Annual exposure limits.

No person shall be permitted to receive an exposure in excess of 4 WLM in any calendar year.

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§ 57.5037 Radon daughter exposure monitoring
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§ 57.5039 Maximum permissible concentration

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