30 CFR 57.22309

§ 57.22309 Methane monitors (V-A mines).

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

Cite this

Citation: 30 CFR 57.22309, § 57.22309 Methane monitors (V-A mines), United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/133276
Permanent ID: ys:prov:133276@1
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Full text

(a) Methane monitors shall be installed on continuous mining machines used in or beyond the last open crosscut. (b) The monitors shall— (1) Give warning at 1.0 percent methane. (2) Automatically deenergize electrical equipment, except power to monitoring equipment determined by MSHA to be intrinsically safe under 30 CFR part 18, and prevent starting of such equipment when methane levels reach 1.5 percent; and (3) Automatically deenergize the equipment when power to a sensor is interrupted. (c) Sensing units of monitors shall be positioned at a location which provides for the most effective measurement of methane.

Legislative history

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