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Data / Federal rules / 2025-11743

Powered Air Purifying Respirators (PAPRs) in Underground Mines

The Mine Safety and Health Administration published this proposed rule in the Federal Register on July 1, 2025. Comments closed on July 31, 2025.

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What the agency says

MSHA is proposing to allow the use of non-permissible Powered Air Purifying Respirators (PAPRs) in specified underground areas of mines, if the equipment meets certain technical specifications and is operated under specific conditions. This proposed rule would codify technical specifications and working conditions to allow the use of non-permissible PAPRs in underground gassy mines. This proposed rule would reduce burden because mine operators would no longer need to submit a petition for modification to use non-permissible PAPRs.

Key facts

Document number
2025-11743
Type
Proposed rule
Action
Proposed rule; request for comments
Agency
Labor Department; Mine Safety and Health Administration
Published
July 1, 2025
Comments due
July 31, 2025
Dates
Comments must be received on or before July 31, 2025.
Docket
Docket No. MSHA-2025-0089
Regulation ID (RIN)
1219-AC17
Code of Federal Regulations
30 CFR 57; 30 CFR 75
Topics
Chemicals; Communications equipment; Electric power; Emergency medical services; Explosives; Fire prevention; Gases; Hazardous substances; Incorporation by reference; Metals; Mine safety and health; Mines; Noise control; Radiation protection; Reporting and recordkeeping requirements; Underground mining
Pages
13

The document on federalregister.gov PDF

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Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.