30 C.F.R. § 57.22212 Air flow (I-C, II-A, and V-A mines).
Title 30 - Mineral Resources
Air flow across each working face shall be sufficient to carry away any accumulation of methane, smoke, fumes, and dust.
Title 30: Mineral Resources
PART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
Subpart T—Safety Standards for Methane in Metal and Nonmetal Mines
Ventilation
§ 57.22212 Air flow (I-C, II-A, and V-A mines).
