Title 30

SECTION 57.22238

57.22238 Actions at 2.0 percent methane (I-B, II-B, V-B, and VI mines).

§ 57.22238 Actions at 2.0 percent methane (I-B, II-B, V-B, and VI mines).

If methane reaches 2.0 percent in the mine atmosphere, all persons other than competent persons necessary to make ventilation changes shall be withdrawn from the mine until methane is reduced to less than 0.5 percent.

---