30 CFR § 77.201 Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines

§ 77.201 Methane content in surface installations.

Current through Jul 27, 2026 · Read all of Part 77

The methane content in the air of any structure, enclosure or other facility shall be less than 1.0 volume per centum.

← § 77.200 Surface installations; general.§ 77.201-1 Tests for methane; qualified person; use of approved device. →