Improving and Eliminating Regulations; Diesel Particulate Matter Emission Limits in Underground Coal Mines
Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register June 25, 2026. Document 2026-12792. Updated Nov. 9, 2026.
- What it does
MSHA is eliminating outdated requirements for diesel particulate matter (DPM) emission limits for permissible diesel-powered equipment and non-permissible heavy-duty diesel-powered equipment operated in underground coal mines. These requirements are being removed from MSHA's regulations because they contain outdated effective dates that are no longer applicable.
The Mine Safety and Health Administration's summary, as published in the Federal Register.
- What changed in the regulation
1 part of Title 30 of the Code of Federal Regulations:
Wording on eCFR: the day before it took effect and from the day it took effect (first part listed).
- Compared with
The Mine Safety and Health Administration has published 4 final rules in 2026 so far, compared with 0 in all of 2025.
Counted by the Tribune from Federal Register records since Jan. 1, 2025.
- Before this
1 earlier Federal Register document under regulation identifier 1219-AC05 since Jan. 1, 2025.
- What happens next and when
Effective date: July 27, 2026.
The agency's dates, word for word.
The record as published
| Document number | 2026-12792 |
|---|---|
| Action | Final rule. |
| Agencies | Labor Department; Mine Safety and Health Administration |
| Published | June 25, 2026 |
| Effective date | July 27, 2026 |
| Regulation identifier (RIN) | 1219-AC05 |
| Docket | MSHA-2025-0074 |
Source: the Federal Register (public domain). The document in the Federal Register