Proposed Rule2025-11619
Improving and Eliminating Regulations; Limit on Exposure to Diesel Particulate Matter in Underground Metal and Nonmetal Mines
Primary source
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Published
July 1, 2025
Issuing agencies
Labor DepartmentMine Safety and Health Administration
Abstract
MSHA is proposing to revise 30 CFR part 57 by removing outdated requirements for miners' exposures to diesel particulate matter (DPM) in underground metal and nonmetal mines (MNM).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.
Indexed from Federal Register on July 1, 2025.
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