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Code · CFR · Title 30 — Mineral Resources · Part 57 · § 57.22214

§ 57.22214. Changes in ventilation (I-A, II-A, III, and V-A mines).

106 words·~1 min read·/us/cfr/t30/s§ 57.22214·

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(a)Changes in ventilation which affect the main air current or any split thereof and which adversely affect the safety of persons in the mine shall be made only when the mine is idle.
(b)Only persons engaged in making such ventilation changes shall be permitted in the mine during changes.
(c)Power shall be deenergized in affected areas prior to making ventilation changes, except power to monitoring equipment determined by MSHA to be intrinsically safe under 30 CFR part 18. Power shall not be restored until the results of the change have been determined and a competent person has examined affected working places for methane.
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Cited by 9 sections · top 2
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  • 30 CFR 18
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§ 57.22214
Changes in ventilation (I-A, II-A, III, and V-A mines).
Fed. Reg.×9
Cite30 CFR 18
Cites 1Cited by 9 across 1 source
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