30 CFR 57.22235
§ 57.22235 Actions at 1.0 percent methane (I-C, II-A, II-B, and IV mines).
United States · 30 CFR — Mineral Resources · Status: effective
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- Citation
- 30 CFR 57.22235, § 57.22235 Actions at 1.0 percent methane (I-C, II-A, II-B, and IV mines), United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/133261
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Full text
(a) If methane reaches 1.0 percent in the mine atmosphere, all persons other than competent persons necessary to make ventilation changes shall be withdrawn from affected areas until methane is reduced to less than 0.5 percent.
(b) If methane reaches 1.0 percent at a work place and there has been a failure of the main ventilation system, all persons shall be withdrawn from the mine.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.