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Title 30

Displaying title 30, up to date as of 7/13/2026. Title 30 was last amended 6/29/2026.
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  1. Title 30 —Mineral Resources
  2. Chapter I —Mine Safety and Health Administration, Department of Labor
  3. Subchapter K —Metal and Nonmetal Mine Safety and Health
  4. Part 57 —Safety and Health Standards—Underground Metal and Nonmetal Mines
  5. Subpart T   View Full Text
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eCFR Content

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Title 30Mineral ResourcesPart / Section
Chapter IMine Safety and Health Administration, Department of Labor1 – 199
Subchapter KMetal and Nonmetal Mine Safety and Health56 – 58
Part 57Safety and Health Standards—Underground Metal and Nonmetal Mines57.1 – 57.23004
Subpart TSafety Standards for Methane in Metal and Nonmetal Mines57.22001 – 57.22608
General57.22001 – 57.22002
§ 57.22001Scope.
§ 57.22002Definitions.
Mine Categorization57.22003 – 57.22005
§ 57.22003Mine category or subcategory.
§ 57.22004Category placement or change in placement.
§ 57.22005Notice and appeal of placement or change in placement.
Fire Prevention and Control
§ 57.22101Smoking (I-A, II-A, III, and V-A mines).
§ 57.22102Smoking (I-C mines).
§ 57.22103Open flames (I-A, II-A, III, and V-A mines).
§ 57.22104Open flames (I-C mines).
§ 57.22105Smoking and open flames (IV mines).
§ 57.22106Dust containing volatile matter (I-C mines).
Ventilation57.22201 – 57.22241
§ 57.22201Mechanical ventilation (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines).
§ 57.22202Main fans (I-A, I-B, I-C, II-A, III, V-A, and V-B mines).
§ 57.22203Main fan operation (I-C mines).
§ 57.22204Main fan operation and inspection (I-A, II-A, III, and V-A mines).
§ 57.22205Doors on main fans (I-A, II-A, III, and V-A mines).
§ 57.22206Main ventilation failure (I-A, II-A, III, and V-A mines).
§ 57.22207Booster fans (I-A, II-A, III, and V-A mines).
§ 57.22208Auxiliary fans (I-A, II-A, III, and V-A mines).
§ 57.22209Auxiliary fans (I-C mines).
§ 57.22210In-line filters (I-C mines).
§ 57.22211Air flow (I-A mines).
§ 57.22212Air flow (I-C, II-A, and V-A mines).
§ 57.22213Air flow (III mines).
§ 57.22214Changes in ventilation (I-A, II-A, III, and V-A mines).
§ 57.22215Separation of intake and return air (I-A, II-A, III, and V-A mines).
§ 57.22216Separation of intake and return air (I-C mines).
§ 57.22217Seals and stoppings (I-A, I-B, and I-C mines).
§ 57.22218Seals and stoppings (III, V-A, and V-B mines).
§ 57.22219Seals and stoppings (II-A mines).
§ 57.22220Air passing unsealed areas (I-A, II-A, III, and V-A mines).
§ 57.22221Overcast and undercast construction (I-A, II-A, III, and V-A mines).
§ 57.22222Ventilation materials (I-A, I-B, I-C, II-A, III, V-A, and V-B mines).
§ 57.22223Crosscuts before abandonment (III mines).
§ 57.22224Auxiliary equipment stations (I-A and III mines).
§ 57.22225Auxiliary equipment stations (I-C mines).
§ 57.22226Testing for methane (IV mines).
§ 57.22227Approved testing devices (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines).
§ 57.22228Preshift examination (I-A, I-C, II-A, III, and V-A mines).
§ 57.22229Weekly testing (I-A, III, and V-A mines).
§ 57.22230Weekly testing (II-A mines).
§ 57.22231Actions at 0.25 percent methane (I-B, II-B, V-B, and VI mines).
§ 57.22232Actions at 0.5 percent methane (I-B, II-A, II-B, IV, V-B, and VI mines).
§ 57.22233Actions at 0.5 percent methane (I-C mines).
§ 57.22234Actions at 1.0 percent methane (I-A, I-B, III, V-A, and V-B mines).
§ 57.22235Actions at 1.0 percent methane (I-C, II-A, II-B, and IV mines).
§ 57.22236Actions at 1.0 percent methane (VI mines).
§ 57.22237Actions at 2.0 to 2.5 percent methane in bleeder systems (I-A and III mines).
§ 57.22238Actions at 2.0 percent methane (I-B, II-B, V-B, and VI mines).
§ 57.22239Actions at 2.0 percent methane (IV mines).
§ 57.22240Actions at 2.0 percent methane (V-A mines).
§ 57.22241Advance face boreholes (I-C mines).
Equipment57.22301 – 57.22315
§ 57.22301Atmospheric monitoring systems (I-A, II-A, and V-A mines).
§ 57.22302Approved equipment (I-A and V-A mines).
§ 57.22303Approved equipment (I-C mines).
§ 57.22304Approved equipment (II-A mines).
§ 57.22305Approved equipment (III mines).
§ 57.22306Methane monitors (I-A mines).
§ 57.22307Methane monitors (II-A mines).
§ 57.22308Methane monitors (III mines).
§ 57.22309Methane monitors (V-A mines).
§ 57.22310Electrical cables (I-C mines).
§ 57.22311Electrical cables (II-A mines).
§ 57.22312Distribution boxes (II-A and V-A mines).
§ 57.22313Explosion-protection systems (I-C mines).
§ 57.22314Flow-control devices (V-A and V-B mines).
§ 57.22315Self-contained breathing apparatus (V-A mines).
Underground Retorts57.22401
§ 57.22401Underground retorts (I-A and I-B mines).
Illumination57.22501
§ 57.22501Personal electric lamps (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines).
Explosives57.22601 – 57.22608
§ 57.22601Blasting from the surface (I-A mines).
§ 57.22602Blasting from the surface (I-C mines).
§ 57.22603Blasting from the surface (II-A mines).
§ 57.22604Blasting from the surface (II-B mines).
§ 57.22605Blasting from the surface (V-A mines).
§ 57.22606Explosive materials and blasting units (III mines).
§ 57.22607Blasting on shift (III mines).
§ 57.22608Secondary blasting (I-A, II-A, and V-A mines).
Appendix I to Subpart T of Part 57
Standard Applicability by Category or Subcategory
eCFR Content