30 CFR 57.22240 - Actions at 2.0 percent methane (V-A mines).

Regulations last checked for updates: May 02, 2025

Title 30 - Mineral Resources last revised: Apr 14, 2025

View all text of Subpart T [§ 57.22001 - § 57.22608]

§ 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percent in the mine atmosphere, all persons other than competent persons necessary to make ventilation changes shall be withdrawn from affected areas until methane is reduced to less than 1.0 percent.

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

authority: 30 U.S.C. 811.

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

cite as: 30 CFR 57.22240