['Specialized Industries']

['Mining']

07/19/2025

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§57.22233 Actions at 0.5 percent methane (I-C mines).

...

§57.22233 Actions at 0.5 percent methane (I-C mines).

RegSense CFR Regulations Mining Specialized Industries CFR Section English Focus Area USA

If methane reaches 0.5 percent in the mine atmosphere, ventilation changes shall be made to reduce the level of methane. Until methane is reduced to less than 0.5 percent, no other work shall be permitted in affected areas.

['Specialized Industries']

['Mining']

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