SUBCHAPTER O—COAL MINE SAFETY AND HEALTH (parts 70 to 90)
- PART 70—MANDATORY HEALTH STANDARDS—UNDERGROUND COAL MINES
- PART 71—MANDATORY HEALTH STANDARDS—SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
- PART 72—HEALTH STANDARDS FOR COAL MINES
- PART 74—COAL MINE DUST SAMPLING DEVICES
- PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES
- PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES
- PART 90—MANDATORY HEALTH STANDARDS—COAL MINERS WHO HAVE EVIDENCE OF THE DEVELOPMENT OF PNEUMOCONIOSIS