Federal Register #2026-12792

MSHA Final Rule: Removal of Outdated Diesel Emission Limits for Underground Coal Mines

This notice announces a regulatory update by the Department of Labor's Mine Safety and Health Administration (MSHA): - The final rule eliminates outdated diesel particulate matter (DPM) emission limit requirements for underground coal mines. - Removes obsolete effective dates from MSHA regulations related to: - Permissible diesel-powered equipment - Non-permissible heavy-duty diesel-powered equipment - No products, services, or procurement actions are requested or required. - No Original Equipment Manufacturers (OEMs) or vendors are named or implicated. - The rule is intended to streamline and modernize regulations without reducing protections for miners. - Classified as a deregulatory action under relevant executive orders.

Description

This final rule issued by the Mine Safety and Health Administration (MSHA) under the Department of Labor eliminates outdated requirements for diesel particulate matter (DPM) emission limits for permissible diesel-powered equipment and non-permissible heavy-duty diesel-powered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. The rule removes outdated effective dates from MSHA's regulations that are no longer applicable, without reducing protections for miners. The effective date of this rule is July 27, 2026.

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