ECFR SNAPSHOT / CURRENT THROUGH 2026-08-19

30 CFR 57.22215

Separation of intake and return air (I-A, II-A, III, and V-A mines).

CHAPTERCHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
PARTPART 57—SAFETY AND HEALTH STANDARDS—UNDERGROUND METAL AND NONMETAL MINES
SUBPARTT