Mine Safety and Health Administration · MSHA-2025-0074
Improving and Eliminating Regulations; Diesel Particulate Matter Emission Limits in Underground Coal Mines
The Federal Register published the matched proposal on July 1, 2025 and the matched final rule on June 25, 2026, 359 days later.
Official publication history
Proposal ·
Improving and Eliminating Regulations; Diesel Particulate Matter Emission Limits in Underground Coal Mines
Comment date listed July 31, 2025
Final rule ·
Improving and Eliminating Regulations; Diesel Particulate Matter Emission Limits in Underground Coal Mines
Effective date in register data July 27, 2026
About this timeline
How the records were matched
America.co links a proposed rule and a later final rule when the Federal Register records share the exact docket identifier and lead agency. This snapshot covers records published from January 1, 2025 to November 10, 2026.
A docket can hold more than one regulatory action. Dates here are dates listed in individual notices. Later corrections, court actions, other dockets and records outside the date window may change what applies. Follow the official documents for the full text and effective dates.
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