PART 74—COAL MINE DUST SAMPLING DEVICES
- SUBPART A—General (§74.1 to §74.2)
- SUBPART B—Approval Requirements for Coal Mine Dust Personal Sampler Unit (§74.3 to §74.6)
- SUBPART C—Requirements for Continuous Personal Dust Monitors (§74.7 to §74.11)
- SUBPART D—General Requirements for All Devices (§74.12 to §74.18)