1219-AC10 202510 The Regulatory Plan and the Unified Agenda of Federal Regulatory and Deregulatory Actions 1219 Mine Safety and Health Administration MSHA 1200 Department of Labor DOL Improving and Eliminating Regulations; Limit of Exposure to Diesel Particulate Matter in Underground Metal and Nonmental Mines

The Mine Safety and Health Administration (MSHA) proposes to revise 30 CFR part 57 by removing outdated requirements for miners' exposures to diesel particulate matter in underground metal and nonmental mines.  These revisions would streamline the requirements for diesel particulate matter for underground metal and nonmetal mine operators while maintaining the same level of protections for miners.  The NPRM was published on July 1, 2025.

]]> Substantive, Nonsignificant Previously Published in The Unified Agenda Final Rule Stage No No Deregulatory 30 CFR 57.5060 30 U.S.C. 811 No NPRM 07/01/2025 90 FR 28403 NPRM Comment Period End 07/31/2025 Final Rule 07/00/2026 Undetermined None No No No Jessica Senk Acting Director, Office of Standards, Regulations, and Variances 1219 Mine Safety and Health Administration MSHA 202 693-9440 202 693-9441 senk.jessica@dol.gov 200 Constitution Avenue NW, Washington DC 20210