['Specialized Industries']

['Mining']

07/19/2025

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§57.22201 Mechanical ventilation (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines).

...

§57.22201 Mechanical ventilation (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines).

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

All mines shall be ventilated mechanically.

['Specialized Industries']

['Mining']

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