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Home Page > Executive Branch > Code of Federal Regulations > Electronic Code of Federal Regulations
e-CFR Data is current as of February 4, 2010
TITLE 30--Mineral Resources
CHAPTER I--MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR
SUBCHAPTER O--COAL MINE SAFETY AND HEALTH
PART 75--MANDATORY SAFETY STANDARDS--UNDERGROUND COAL MINES
Subpart A--GENERAL
Subpart B--QUALIFIED AND CERTIFIED PERSONS
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| Tests for methane and for oxygen deficiency; qualified person. |
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| Tests for methane; qualified person; additional requirement. |
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| Tests of air flow; qualified person. |
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| Electrical work; qualified person. |
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| Repair of energized surface high voltage lines; qualified person. |
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| Qualified hoisting engineer; qualifications. |
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| AMS operator, qualifications. |
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| Records of certified and qualified persons. |
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| Plans for training programs. |
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Subpart C--ROOF SUPPORT
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| Protection from falls of roof, face and ribs. |
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| Installation of roof support using mining machines with integral roof bolters. |
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| Conventional roof support. |
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| Automated Temporary Roof Support (ATRS) systems. |
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| Manual installation of temporary support. |
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| Roof testing and scaling. |
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| Rehabilitation of areas with unsupported roof. |
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| Supplemental support materials, equipment and tools. |
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| Roof control plan information. |
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| Roof control plan-approval criteria. |
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| Evaluation and revision of roof control plan. |
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Subpart D--VENTILATION
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| Installation of main mine fans. |
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| Main mine fan examinations and records. |
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| Main mine fan stoppage with persons underground. |
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| Air quality detectors and measurement devices. |
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| Harmful quantities of noxious gases. |
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| Actions for excessive methane. |
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| Intentional changes in the ventilation system. |
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| Air courses and trolley haulage systems. |
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| Face ventilation control devices. |
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| Auxiliary fans and tubing. |
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| Working sections and working places. |
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| Worked-out areas and areas where pillars are being recovered. |
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| Seal strengths, design applications, and installation. |
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| Sampling and monitoring requirements. |
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| Construction and repair of seals. |
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| Underground electrical installations. |
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| Direct-fired intake air heaters. |
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| Belt air course ventilation. |
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| Atmospheric monitoring systems. |
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| Actions in response to AMS malfunction, alert, or alarm signals. |
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| Preshift examination at fixed intervals. |
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| Supplemental examination. |
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| Hazardous conditions; posting, correcting and recording. |
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| Mine ventilation plan; submission and approval. |
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| Mine ventilation plan; contents. |
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| Escapeways; bituminous and lignite mines. |
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| Escapeways; anthracite mines. |
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| Mechanical escape facilities. |
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| Longwall and shortwall travelways. |
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| Boreholes in advance of mining. |
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| Mining into inaccessible areas. |
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Subpart E--COMBUSTIBLE MATERIALS AND ROCK DUSTING
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| Accumulation of combustible materials. |
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| Abatement of dust; water or water with a wetting agent. |
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| Excessive amounts of dust. |
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| Maintenance of incombustible content of rock dust. |
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| Exemption of anthracite mines. |
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Subpart F--ELECTRICAL EQUIPMENT--GENERAL
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| Permissible electric equipment. |
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| Other low horsepower electric face equipment. |
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| Permissible electric face equipment; coal seams above water table. |
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| Coal seams above the water table. |
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| Permissible electric face equipment. |
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| New openings; mines above water table and never classed gassy. |
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| Permits for noncompliance. |
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| Permissible electric face equipment; maintenance. |
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| Statement listing all electric face equipment. |
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| Permissibility of new, replacement, used, reconditioned, additional, and rebuilt electric face equipment. |
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| Mines classed gassy; use and maintenance of permissible electric face equipment. |
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| Electric face equipment; requirements for permissibility. |
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| Electric face equipment; permissible condition; maintenance requirements. |
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| Electric equipment other than power-connection points; outby the last open crosscut; return air; permissibility requirements. |
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| Map of electrical system. |
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| Changes in electric system map; recording. |
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| Electric power circuit and electric equipment; deenergization. |
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| Energized trolley wires; repair. |
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| Repair of energized trolley wires; training. |
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| Low-, medium-, or high-voltage distribution circuits and equipment; repair. |
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| Electric equipment; examination, testing and maintenance. |
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| Frequency of examinations. |
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| Electric conductor; capacity and insulation. |
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| Electric conductor; size. |
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| Electrical connections or splices; suitability. |
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| Cable fittings; suitability. |
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| Communication wires and cables; installation; insulation; support. |
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| Power wires and cables; insulation and protection. |
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| Power wires and cables; insulation and protection. |
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| Plans for insulation of existing bare power wires and cables. |
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| Electric equipment and circuits; overload and short circuit protection. |
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| Electric equipment and circuits; overload and short circuit protection; minimum requirements. |
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| Incandescent lamps, overload and short circuit protection. |
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| Main power circuits; disconnecting switches. |
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| Main power circuits; disconnecting switches; locations. |
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| Electric equipment; switches. |
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| Lightning arresters; ungrounded and exposed power conductors and telephone wires. |
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| Incandescent and fluorescent lamps. |
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| Electric face equipment; deenergization. |
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| Deenergization of self-propelled electric face equipment installation requirements. |
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| Deenergization of self-propelled electric face equipment; performance requirements. |
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| Automatic emergency-parking brakes. |
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| Electric face equipment; electric equipment used in return air outby the last open crosscut; maximum level of alternating or direct electric current between frames of equipment. |
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Subpart G--TRAILING CABLES
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| Trailing cables; flame resistance. |
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| Approved cables; flame resistance. |
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| Short circuit protection of trailing cables. |
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| Short circuit protection; ratings and settings of circuit breakers. |
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| Short circuit protection; use of fuses; approval by the Secretary. |
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| Short circuit protection; dual element fuses; current ratings; maximum values. |
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| Trailing cable junctions. |
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| Temporary splice of trailing cable. |
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| Permanent splicing of trailing cables. |
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| Clamping of trailing cables to equipment. |
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| Protection of trailing cables. |
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| Breaking trailing cable and power cable connections. |
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Subpart H--GROUNDING
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| Grounding metallic sheaths, armors, and conduits enclosing power conductors. |
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| Approved methods of grounding. |
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| Grounding metallic frames, casings, and other enclosures of electric equipment. |
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| Approved methods of grounding of equipment receiving power from ungrounded alternating current power systems. |
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| Approved method of grounding metallic frames, casings and other enclosures receiving power from single-phase 110-220-volt circuit. |
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| Approved methods of grounding metallic frames, casings and other enclosures of electric equipment receiving power from direct current power systems with one polarity grounded. |
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| Grounding wires; capacity of wires. |
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| Use of grounding connectors. |
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| Protection other than grounding. |
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| Protection other than grounding; approved by an authorized representative of the Secretary. |
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| Grounding offtrack direct-current machines and the enclosures of related detached components. |
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| Approved method of grounding. |
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| Approved grounding mediums. |
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| Approved methods of grounding offtrack mobile, portable and stationary direct-current machines. |
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| Other methods of protecting offtrack direct-current equipment; approved by an authorized representative of the Secretary. |
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| Grounding frames of stationary high-voltage equipment receiving power from ungrounded delta systems. |
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| Approved methods of grounding. |
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| Work on high-voltage lines; deenergizing and grounding. |
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| Work on high-voltage lines. |
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| Repairs to energized surface high-voltage lines. |
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| Work on energized high-voltage surface lines; reporting. |
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| Installation of protective equipment. |
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| Protective clothing; use and inspection. |
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| Protective equipment; inspection. |
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| Protective equipment; testing and storage. |
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| Operating disconnecting or cutout switches. |
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| Tying into energized high-voltage surface circuits. |
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| Use of grounded messenger wires; ungrounded systems. |
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| Deenergized underground power circuits; idle days--idle shifts. |
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Subpart I--UNDERGROUND HIGH-VOLTAGE DISTRIBUTION
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| High-voltage circuits; circuit breakers. |
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| Circuit breakers; location. |
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| Approved circuit schemes. |
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| Testing, examination and maintenance of circuit breakers; procedures. |
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| Testing, examination, and maintenance of circuit breakers; record. |
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| Protection of high-voltage circuits extending underground. |
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| Fail safe ground check circuits on high-voltage resistance grounded systems. |
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| Maximum voltage ground check circuits. |
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| Ground check systems not employing pilot check wires; approval by the Secretary. |
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| Underground high-voltage cables. |
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| Connection of single-phase loads. |
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| Installation of high-voltage transmission cables. |
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| Identification of circuit breakers and disconnecting switches. |
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| High-voltage trailing cables; splices. |
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| High-voltage underground equipment; grounding. |
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| Movement of high-voltage power centers and portable transformers; permit. |
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| High-voltage power centers and transformers; record of examination. |
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| High-voltage longwalls; scope. |
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| Cable handling and support systems. |
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| Use of insulated cable handling equipment. |
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| Motor-starter enclosures; barriers and interlocks. |
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| Electrical work; troubleshooting and testing. |
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| Testing, examination and maintenance. |
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| Underground high-voltage longwall cables. |
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Subpart J--UNDERGROUND LOW- AND MEDIUM-VOLTAGE ALTERNATING CURRENT CIRCUITS
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| Low- and medium-voltage circuits serving three-phase alternating current equipment; circuit breakers. |
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| Circuit breakers; location. |
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| Approved circuit schemes. |
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| Testing, examination, and maintenance of circuit breakers; procedures. |
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| Testing, examination, and maintenance of circuit breakers; record. |
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| Protection of low- and medium-voltage three-phase circuits used underground. |
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| Low- and medium-voltage ground check monitor circuits. |
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| Maximum voltage ground check circuits. |
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| Approved ground check systems not employing pilot check wires. |
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| Attachment of ground conductors and ground check wires to equipment frames; use of separate connections. |
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| Identification of circuit breakers. |
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| Connection of single-phase loads. |
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| Trailing cables for mobile equipment, ground wires, and ground check wires. |
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| Design of trailing cables for medium-voltage circuits. |
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Subpart K--TROLLEY WIRES AND TROLLEY FEEDER WIRES
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| Devices for overcurrent protection; testing and calibration requirements; records. |
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| Installation of electric equipment and conductors; permissibility. |
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| Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley wires and trolley feeder wires. |
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| Other requirements for guarding of trolley wires and trolley feeder wires. |
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| Requirements for movement of off-track mining equipment in areas of active workings where energized trolley wires or trolley feeder wires are present; pre-movement requirements; certified and qualified persons. |
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Subpart L--FIRE PROTECTION
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| Type and quality of firefighting equipment. |
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| Quantity and location of firefighting equipment. |
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| Condition and examination of firefighting equipment. |
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| Deluge-type water sprays, foam generators; main and secondary belt-conveyor drives. |
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| Deluge-type water spray systems. |
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| Installation of deluge-type sprays. |
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| Installation of foam generator systems. |
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| Water sprinkler systems; general. |
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| Installation of water sprinkler systems; requirements. |
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| Water sprinkler systems; arrangement of sprinklers. |
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| Water sprinkler systems; fire warning devices at belt drives. |
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| Inspection of water sprinkler systems. |
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| Equivalent dry-pipe system. |
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| Dry powder chemical systems; general. |
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| Installation of dry powder chemical systems. |
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| Construction of dry powder chemical systems. |
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| Dry powder chemical systems; sensing and fire-suppression devices. |
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| Sealing of dry powder chemical systems. |
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| Nozzles; flow rate and direction. |
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| Safeguards for dry powder chemical systems. |
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| Inspection of dry powder chemical systems. |
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| Slippage and sequence switches. |
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| Automatic fire warning devices. |
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| Automatic fire sensors; approved components; installation requirements. |
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| Automatic fire sensor and warning device systems; minimum requirements; general. |
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| Automatic fire sensor and warning device systems; installation; minimum requirements. |
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| Automatic fire warning devices; actions and response. |
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| Automatic fire sensors; actuation of fire suppression systems. |
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| Electrical components; permissibility requirements. |
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| Automatic fire sensor and warning device systems; examination and test requirements. |
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| Minimum requirements; fire suppression materials and location; maintenance of entries and crosscuts; access doors; communications; fire crews; high-expansion foam devices. |
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| Fire suppression systems; additional requirements. |
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| Tests of fire hydrants and fire hose; record of tests. |
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| Underground storage, lubricating oil and grease. |
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| Welding, cutting, or soldering with arc or flame underground. |
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| Transportation of liquefied and nonliquefied compressed gas cylinders; requirements. |
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| Storage of liquefied and nonliquefied compressed gas cylinders; requirements. |
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| Use of liquefied and nonliquefied compressed gas cylinders; general requirements. |
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| Maintenance and tests of liquefied and nonliquefied compressed gas cylinders; accessories and equipment; requirements. |
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| Exemption of small low pressure gas cylinders containing nonflammable or nonexplosive gas mixtures. |
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| Fire suppression devices. |
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| Fire-resistant hydraulic fluids and fire suppression devices on underground equipment. |
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| Approved fire-resistant hydraulic fluids; minimum requirements. |
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| Fire suppression devices; approved components; installation requirements. |
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| Automatic fire sensors and manual actuators; installation; minimum requirements. |
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| Electrical components of fire suppression devices; permissibility requirements. |
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| Capacity of fire suppression devices; location and direction of nozzles. |
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| Water spray devices; capacity; water supply; minimum requirements. |
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| Fire suppression devices; extinguishant supply systems. |
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| Dry chemical devices; capacity; minimum requirements. |
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| High expansion foam devices; minimum capacity. |
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| Extinguishing agents; requirements on mining equipment employed in low coal. |
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| Inerting of mine atmosphere prohibited. |
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| Approval of other fire suppression devices. |
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| Guards and handrails; requirements where fire suppression devices are employed. |
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| Fire suppression devices; hazards; training of miners. |
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| Inspection of fire suppression devices. |
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| Incorporation by reference; availability of publications. |
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Subpart M--MAPS
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| Additional information on mine map. |
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| Accuracy and scale of mine maps. |
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| Temporary notations, revisions, and supplements. |
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| Temporary notations, revisions, and supplements. |
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| Availability of mine map. |
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| Mine closure; filing of map with Secretary. |
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| Places to give notice and file maps. |
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Subpart N--EXPLOSIVES AND BLASTING
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| Explosives and blasting equipment. |
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| Transporting explosives and detonators. |
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| Explosives and detonators in underground magazines. |
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| Explosives and detonators outside of magazines. |
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| Sheathed explosive units. |
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| Boreholes for explosives. |
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| Preparation before blasting. |
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| Weight of explosives permitted in boreholes in bituminous and lignite mines. |
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| Permits for firing more than 20 boreholes and for use of nonpermissible blasting units. |
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| Methane concentration and tests. |
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| Examination after blasting. |
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| Damaged or deteriorated explosives and detonators. |
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Subpart O--HOISTING AND MANTRIPS
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| Hoisting equipment; general. |
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| Hoists; brakes, capability. |
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| Hoists; tests of safety catches; records. |
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| Daily examination of hoisting equipment. |
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| Certifications and records of daily examinations. |
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| Hoists; rated capacities; indicators. |
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| Communication between shaft stations and hoist room. |
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| Communication between shaft stations and hoist room. |
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| Tests of signaling systems. |
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| Criteria--Hoists transporting materials; brakes. |
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| Criteria--Drum clutch; cage construction. |
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| Criteria--Automatic elevators. |
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| Criteria--Belt conveyors. |
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| Criteria--Self-propelled personnel carriers. |
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| Criteria--Track haulage roads. |
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| Criteria--Haulage; general. |
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| Criteria--Entrances to shafts and slopes. |
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| Automatic brakes; speed reduction gear. |
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| Automatic couplers, haulage equipment. |
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| End attachment retermination. |
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| End attachment replacement. |
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Subpart P--MINE EMERGENCIES
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| Mine emergency evacuation and firefighting program of instruction. |
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| Use of fire suppression equipment. |
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| Mine emergency evacuation training and drills. |
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| Emergency Response Plan; refuge alternatives. |
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| Training and records for examination, maintenance and repair of refuge alternatives and components. |
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Subpart Q--COMMUNICATIONS
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| Communication facilities; main portals; installation requirements. |
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| Communication facilities; working sections; installation and maintenance requirements; audible or visual alarms. |
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| Communications facilities; refuge alternatives. |
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Subpart R--MISCELLANEOUS
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| Surface structures, fireproofing. |
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| Surface structures; fireproof construction. |
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| Accumulations of methane and coal dust on surface coal-handling facilities. |
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| Canopies or cabs; diesel-powered and electric face equipment. |
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| Canopies or cabs; self-propelled diesel-powered and electric face equipment; installation requirements. |
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| Sealing of shaft openings. |
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| Sealing of slope or drift openings. |
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| Openings of active mines. |
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| Bath houses and toilet facilities. |
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| Availability of surface bathing facilities; change rooms; and sanitary facilities. |
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| Location of surface facilities. |
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| Minimum requirements of surface bathing facilities, change rooms, and sanitary toilet facilities. |
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| Waiver of surface facilities requirements. |
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| Application for waiver of surface facilities. |
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| Underground sanitary facilities; installation and maintenance. |
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| Underground sanitary facilities; waiver of requirements. |
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| Application for waiver of location requirements for underground sanitary facilities. |
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| Underground sanitary facilities; maintenance. |
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| Emergency medical assistance; first-aid. |
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| Arrangements for emergency medical assistance and transportation for injured persons; agreements; reporting requirements; posting requirements. |
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| Emergency communications; requirements. |
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| First-Aid training; supervisory employees. |
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| First-aid training program; availability of instruction to all miners. |
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| First-aid training program; retraining of supervisory employees; availability to all miners. |
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| First-aid training program; minimum requirements. |
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| First-aid equipment; location; minimum requirements. |
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| Availability of approved self-rescue devices; instruction in use and location. |
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| Approved self-rescue devices. |
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| Self-rescue devices; use and location requirements. |
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| Self-rescue devices; inspection, testing, maintenance, repair, and recordkeeping. |
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| Additional self-contained self-rescuers (SCSRs). |
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| Map locations of self-contained self-rescuers (SCSR). |
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| Reporting SCSR inventory and malfunctions; retention of SCSRs. |
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| Identification check system. |
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| Operations under water; notification by operator. |
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| Applications for permits. |
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| Illumination; purpose and scope of 75.1719 through 75.1719-4; time for compliance. |
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| Illumination in working places. |
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| Lighting fixtures; requirements. |
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| Methods of measurement; light measuring instruments. |
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| Mining machines, cap lamps; requirements. |
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| Protective clothing; requirements. |
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| Distinctively colored hard hats, or hard caps; identification for newly employed, inexperienced miners. |
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| Opening of new underground coal mines, or reopening and reactivating of abandoned or deactivated coal mines, notification by the operator; requirements. |
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| Mechanical equipment guards. |
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| Stationary grinding machines; protective devices. |
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| Hand-held power tools; safety devices. |
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| Machinery and equipment; operation and maintenance. |
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| Performing work from a raised position; safeguards. |
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| Compressed air; general; compressed air systems. |
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| Maintenance of belt conveyors and belt conveyor entries. |
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Subpart S--[RESERVED]
Subpart T--DIESEL-POWERED EQUIPMENT
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| Diesel fuel requirements. |
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| Underground diesel fuel storage--general requirements. |
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| Underground diesel fuel storage facilities and areas; construction and safety precautions. |
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| Underground diesel fuel tanks and safety cans. |
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| Dispensing of diesel fuel. |
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| Diesel fuel piping systems. |
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| Transport of diesel fuel. |
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| Diesel-powered equipment intended for use in underground coal mines. |
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| Nonpermissible diesel-powered equipment; categories. |
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| Nonpermissible diesel-powered equipment; design and performance requirements. |
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| Nonpermissible diesel-powered equipment; electrical system design and performance requirements. |
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| Fire suppression systems for diesel-powered equipment and fuel transportation units. |
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| Fire suppression systems for permanent underground diesel fuel storage facilities. |
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| Maintenance of diesel-powered equipment. |
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| Training and qualification of persons working on diesel-powered equipment. |
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| Operation of diesel-powered equipment. |
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