Data / Federal rules / 2025-11619
Improving and Eliminating Regulations; Limit on Exposure to Diesel Particulate Matter in Underground Metal and Nonmetal 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MSHA is proposing to revise 30 CFR part 57 by removing outdated requirements for miners' exposures to diesel particulate matter (DPM) in underground metal and nonmetal mines (MNM). These revisions would streamline the requirements for DPM for underground MNM mine operators while maintaining the same level of protection for miners.
Key facts
- Document number
- 2025-11619
- 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-2025-0079
- Regulation ID (RIN)
- 1219-AC10
- Code of Federal Regulations
- 30 CFR 57
- Topics
- Chemicals; Electric power; Explosives; Fire prevention; Gases; Hazardous substances; Mine safety and health; Noise control; Radiation protection; Reporting and recordkeeping requirements; Underground mining
- Pages
- 3
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Everything from the Mine Safety and Health Administration · Rules on chemicals · Rules on electric power · Rules on explosives · Published in July 2025
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.