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30 CFR 57.22239

§ 57.22239 Actions at 2.0 percent methane (IV mines).

United States · 30 CFR — Mineral Resources · Status: effective

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30 CFR 57.22239, § 57.22239 Actions at 2.0 percent methane (IV mines), United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/133265
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If methane reaches 2.0 percent in the mine atmosphere, all persons other than competent persons necessary to make ventilation changes shall be withdrawn from the mine until methane is reduced to less than 0.5 percent. MSHA shall be notified immediately.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.