U.S. Code of Federal Regulations

Regulations most recently checked for updates: Jan 21, 2026

All TitlesTitle 30Chapter IPart 57Subpart D - Subpart D—Air Quality, Radiation, Physical Agents, and Diesel Particulate Matter

AIR QUALITY—SURFACE AND UNDERGROUND
§ 57.5001 - Exposure limits for airborne contaminants.
§ 57.5001T - Exposure limits for airborne contaminants.
§ 57.5002 - Exposure monitoring.
§ 57.5005 - Control of exposure to airborne contaminants.
§ 57.5005T - Control of exposure to airborne contaminants.
§ 57.5006 - Restricted use of chemicals.

AIR QUALITY—SURFACE ONLY [RESERVED]
AIR QUALITY—UNDERGROUND ONLY
§ 57.5015 - Oxygen deficiency.

RADIATION—UNDERGROUND ONLY
§ 57.5037 - Radon daughter exposure monitoring.
§ 57.5038 - Annual exposure limits.
§ 57.5039 - Maximum permissible concentration.
§ 57.5040 - Exposure records.
§ 57.5041 - Smoking prohibition.
§ 57.5042 - Revised exposure levels.
§ 57.5044 - Respirators.
§ 57.5045 - Posting of inactive workings.
§ 57.5046 - Protection against radon gas.
§ 57.5047 - Gamma radiation surveys.

DIESEL PARTICULATE MATTER—UNDERGROUND ONLY
§ 57.5060 - Limit on exposure to diesel particulate matter.
§ 57.5061 - Compliance determinations.
§ 57.5065 - Fueling practices.
§ 57.5066 - Maintenance standards.
§ 57.5067 - Engines.
§ 57.5070 - Miner training.
§ 57.5071 - Exposure monitoring.
§ 57.5075 - Diesel particulate records.
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