---
kind: "section"
citation: "30 C.F.R. § 57.22240"
title: "30"
number: "57.22240"
heading: "Actions at 2.0 percent methane (V-A mines)."
url: "https://uscodex.org/cfr/30/57.22240"
---

# §57.22240. Actions at 2.0 percent methane (V-A 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percent in the mine atmosphere, all persons other than competent persons necessary to make ventilation changes shall be withdrawn from affected areas until methane is reduced to less than 1.0 percent.


## Notes

### Amendments

[52 FR 24941, July 1, 1987; 52 FR 27903, July 24, 1987]

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 52 FR 24941, July 1, 1987, unless otherwise noted.

### Authority

Authority: 30 U.S.C. 811.

### Source

Source: 50 FR 4082, Jan. 29, 1985, unless otherwise noted.

### Amendments

[52 FR 24941, July 1, 1987; 52 FR 27903, July 24, 1987]