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Part 77
FEDERAL · 30 CFR
Part 77 — Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines
274 sections · Title 30: Mineral Resources
§ 77.1
Scope.
§ 77.2
Definitions.
§ 77.100
Certified person.
§ 77.101
Tests for methane and for oxygen deficiency; qualified person.
§ 77.102
Tests for methane; oxygen deficiency; qualified person, additional requirement.
§ 77.103
Electrical work; qualified person.
§ 77.104
Repair of energized surface high-voltage lines; qualified person.
§ 77.105
Qualified hoistman; slope or shaft sinking operation; qualifications.
§ 77.106
Records of certified and qualified persons.
§ 77.107
Training programs.
§ 77.107-1
Plans for training programs.
§ 77.200
Surface installations; general.
§ 77.201
Methane content in surface installations.
§ 77.201-1
Tests for methane; qualified person; use of approved device.
§ 77.201-2
Methane accumulations; change in ventilation.
§ 77.202
Dust accumulations in surface installations.
§ 77.203
Use of material or equipment overhead; safeguards.
§ 77.204
Openings in surface installations; safeguards.
§ 77.205
Travelways at surface installations.
§ 77.206
Ladders; construction; installation and maintenance.
§ 77.207
Illumination.
§ 77.208
Storage of materials.
§ 77.209
Surge and storage piles.
§ 77.210
Hoisting of materials.
§ 77.211
Draw-off tunnels; stockpiling and reclaiming operations; general.
§ 77.211-1
Continuous methane monitoring device; installation and operation; automatic deenergization of electric equipment.
§ 77.212
Draw-off tunnel ventilation fans; installation.
§ 77.213
Draw-off tunnel escapeways.
§ 77.214
Refuse piles; general.
§ 77.215
Refuse piles; construction requirements.
§ 77.215-1
Refuse piles; identification.
§ 77.215-2
Refuse piles; reporting requirements.
§ 77.215-3
Refuse piles: certification.
§ 77.215-4
Refuse piles; abandonment.
§ 77.216
Water, sediment, or slurry impoundments and impounding structures; general.
§ 77.216-1
Water, sediment or slurry impoundments and impounding structures; identification.
§ 77.216-2
Water, sediment, or slurry impoundments and impounding structures; minimum plan requirements; changes or modifications; certification.
§ 77.216-3
Water, sediment, or slurry impoundments and impounding structures; inspection requirements; correction of hazards; program requirements.
§ 77.216-4
Water, sediment or slurry impoundments and impounding structures; reporting requirements; certification.
§ 77.216-5
Water, sediment or slurry impoundments and impounding structures; abandonment.
§ 77.217
Definitions.
§ 77.300
Thermal dryers; general.
§ 77.301
Dryer heating units; operation.
§ 77.302
Bypass stacks.
§ 77.303
Hot gas inlet chamber dropout doors.
§ 77.304
Explosion release vents.
§ 77.305
Access to drying chambers, hot gas inlet chambers and ductwork; installation and maintenance.
§ 77.306
Fire protection.
§ 77.307
Thermal dryers; location and installation; general.
§ 77.308
Structures housing other facilities; use of partitions.
§ 77.309
Visual check of system equipment.
§ 77.309-1
Control stations; location.
§ 77.310
Control panels.
§ 77.311
Alarm devices.
§ 77.312
Fail safe monitoring systems.
§ 77.313
Wet-coal feedbins; low-level indicators.
§ 77.314
Automatic temperature control instruments.
§ 77.315
Thermal dryers; examination and inspection.
§ 77.400
Mechanical equipment guards.
§ 77.401
Stationary grinding machines; protective devices.
§ 77.402
Hand-held power tools; safety devices.
§ 77.403
Mobile equipment; falling object protective structures (FOPS).
§ 77.403-1
Mobile equipment; rollover protective structures (ROPS).
§ 77.403-2
Incorporation by reference.
§ 77.404
Machinery and equipment; operation and maintenance.
§ 77.405
Performing work from a raised position; safeguards.
§ 77.406
Drive belts.
§ 77.407
Power-driven pulleys.
§ 77.408
Welding operations.
§ 77.409
Shovels, draglines, and tractors.
§ 77.410
Mobile equipment; automatic warning devices.
§ 77.411
Compressed air and boilers; general.
§ 77.412
Compressed air systems.
§ 77.413
Boilers.
§ 77.500
Electric power circuits and electric equipment; deenergization.
§ 77.501
Electric distribution circuits and equipment; repair.
§ 77.501-1
Qualified person.
§ 77.502
Electric equipment; examination, testing, and maintenance.
§ 77.502-1
Qualified person.
§ 77.502-2
Electric equipment; frequency of examination and testing.
§ 77.503
Electric conductors; capacity and insulation.
§ 77.503-1
Electric conductors.
§ 77.504
Electrical connections or splices; suitability.
§ 77.505
Cable fittings; suitability.
§ 77.506
Electric equipment and circuits; overload and short-circuit protection.
§ 77.506-1
Electric equipment and circuits; overload and short circuit protection; minimum requirements.
§ 77.507
Electric equipment; switches.
§ 77.508
Lightning arresters, ungrounded and exposed power conductors and telephone wires.
§ 77.508-1
Lightning arresters; wires entering buildings.
§ 77.509
Transformers; installation and guarding.
§ 77.510
Resistors; location and guarding.
§ 77.511
Danger signs at electrical installations.
§ 77.512
Inspection and cover plates.
§ 77.513
Insulating mats at power switches.
§ 77.514
Switchboards; passageways and clearance.
§ 77.515
Bare signal or control wires; voltage.
§ 77.516
Electric wiring and equipment; installation and maintenance.
§ 77.600
Trailing cables; short-circuit protection; disconnecting devices.
§ 77.601
Trailing cables or portable cables; temporary splices.
§ 77.602
Permanent splicing of trailing cables.
§ 77.603
Clamping of trailing cables to equipment.
§ 77.604
Protection of trailing cables.
§ 77.605
Breaking trailing cable and power cable connections.
§ 77.606
Energized trailing cables; handling.
§ 77.606-1
Rubber gloves; minimum requirements.
§ 77.700
Grounding metallic sheaths, armors, and conduits enclosing power conductors.
§ 77.700-1
Approved methods of grounding.
§ 77.701
Grounding metallic frames, casings, and other enclosures of electric equipment.
§ 77.701-1
Approved methods of grounding of equipment receiving power from ungrounded alternating current power systems.
§ 77.701-2
Approved methods of grounding metallic frames, casings, and other enclosures of electric equipment receiving power from a direct-current power system.
§ 77.701-3
Grounding wires; capacity.
§ 77.701-4
Use of grounding connectors.
§ 77.702
Protection other than grounding.
§ 77.703
Grounding frames of stationary high-voltage equipment receiving power from ungrounded delta systems.
§ 77.703-1
Approved methods of grounding.
§ 77.704
Work on high-voltage lines; deenergizing and grounding.
§ 77.704-1
Work on high-voltage lines.
§ 77.704-2
Repairs to energized high-voltage lines.
§ 77.704-3
Work on energized high-voltage surface lines; reporting.
§ 77.704-4
Simultaneous repairs.
§ 77.704-5
Installation of protective equipment.
§ 77.704-6
Protective clothing; use and inspection.
§ 77.704-7
Protective equipment; inspection.
§ 77.704-8
Protective equipment; testing and storage.
§ 77.704-9
Operating disconnecting or cutout switches.
§ 77.704-10
Tying into energized high-voltage surface circuits.
§ 77.704-11
Use of grounded messenger wires; ungrounded systems.
§ 77.705
Guy wires; grounding.
§ 77.800
High-voltage circuits; circuit breakers.
§ 77.800-1
Testing, examination, and maintenance of circuit breakers; procedures.
§ 77.800-2
Testing, examination, and maintenance of circuit breakers; record.
§ 77.801
Grounding resistors.
§ 77.801-1
Grounding resistors; continuous current rating.
§ 77.802
Protection of high-voltage circuits; neutral grounding resistors; disconnecting devices.
§ 77.803
Fail safe ground check circuits on high-voltage resistance grounded systems.
§ 77.803-1
Fail safe ground check circuits; maximum voltage.
§ 77.803-2
Ground check systems not employing pilot check wires; approval by the Secretary.
§ 77.804
High-voltage trailing cables; minimum design requirements.
§ 77.805
Cable couplers and connection boxes; minimum design requirements.
§ 77.806
Connection of single-phase loads.
§ 77.807
Installation of high-voltage transmission cables.
§ 77.807-1
High-voltage powerlines; clearances above ground.
§ 77.807-2
Booms and masts; minimum distance from high-voltage lines.
§ 77.807-3
Movement of equipment; minimum distance from high-voltage lines.
§ 77.808
Disconnecting devices.
§ 77.809
Identification of circuit breakers and disconnecting switches.
§ 77.810
High-voltage equipment; grounding.
§ 77.811
Movement of portable substations and transformers.
§ 77.900
Low- and medium-voltage circuits serving portable or mobile three-phase alternating current equipment; circuit breakers.
§ 77.900-1
Testing, examination, and maintenance of circuit breakers; procedures.
§ 77.900-2
Testing, examination, and maintenance of circuit breakers; record.
§ 77.901
Protection of low- and medium-voltage three-phase circuits.
§ 77.901-1
Grounding resistor; continuous current rating.
§ 77.902
Low- and medium-voltage ground check monitor circuits.
§ 77.902-1
Fail safe ground check circuits; maximum voltage.
§ 77.902-2
Approved ground check systems not employing pilot check wires.
§ 77.902-3
Attachment of ground conductors and ground check wires to equipment frames; use of separate connections.
§ 77.903
Disconnecting devices.
§ 77.904
Identification of circuit breakers.
§ 77.905
Connection of single-phase loads.
§ 77.906
Trailing cables supplying power to low-voltage mobile equipment; ground wires and ground check wires.
§ 77.1000
Highwalls, pits and spoil banks; plans.
§ 77.1000-1
Filing of plan.
§ 77.1001
Stripping; loose material.
§ 77.1002
Box cuts; spoil material placement.
§ 77.1003
Benches.
§ 77.1004
Ground control; inspection and maintenance; general.
§ 77.1005
Scaling highwalls; general.
§ 77.1006
Highwalls; men working.
§ 77.1007
Drilling; general.
§ 77.1008
Relocation of drills; safeguards.
§ 77.1009
Drill; operation.
§ 77.1010
Collaring holes.
§ 77.1011
Drill holes; guarding.
§ 77.1012
Jackhammers; operation; safeguards.
§ 77.1013
Air drills; safeguards.
§ 77.1100
Fire protection; training and organization.
§ 77.1101
Escape and evacuation; plan.
§ 77.1102
Warning signs; smoking and open flame.
§ 77.1103
Flammable liquids; storage.
§ 77.1104
Accumulations of combustible materials.
§ 77.1105
Internal combustion engines; fueling.
§ 77.1106
Battery-charging stations; ventilation.
§ 77.1107
Belt conveyors.
§ 77.1108
Firefighting equipment; requirements; general.
§ 77.1108-1
Type and capacity of firefighting equipment.
§ 77.1109
Quantity and location of firefighting equipment.
§ 77.1110
Examination and maintenance of firefighting equipment.
§ 77.1111
Welding, cutting, soldering; use of fire extinguisher.
§ 77.1112
Welding, cutting, or soldering with arc or flame; safeguards.
§ 77.1200
Mine map.
§ 77.1201
Certification of mine maps.
§ 77.1202
Availability of mine map.
§ 77.1300
Explosives and blasting.
§ 77.1301
Explosives; magazines.
§ 77.1302
Vehicles used to transport explosives.
§ 77.1303
Explosives, handling and use.
§ 77.1304
Blasting agents; special provisions.
§ 77.1400
Personnel hoists and elevators.
§ 77.1401
Automatic controls and brakes.
§ 77.1402
Rated capacity.
§ 77.1402-1
Maximum load; posting.
§ 77.1403
Daily examination of hoisting equipment.
§ 77.1404
Certifications and records of daily examinations.
§ 77.1405
Operation of hoisting equipment after repairs.
§ 77.1430
Wire ropes; scope.
§ 77.1431
Minimum rope strength.
§ 77.1432
Initial measurement.
§ 77.1433
Examinations.
§ 77.1434
Retirement criteria.
§ 77.1435
Load end attachments.
§ 77.1436
Drum end attachment.
§ 77.1437
End attachment retermination.
§ 77.1438
End attachment replacement.
§ 77.1500
Auger mining; planning.
§ 77.1501
Auger mining; inspections.
§ 77.1502
Auger holes; restriction against entering.
§ 77.1503
Augering equipment; overhead protection.
§ 77.1504
Auger equipment; operation.
§ 77.1505
Auger holes; blocking.
§ 77.1600
Loading and haulage; general.
§ 77.1601
Transportation of persons; restrictions.
§ 77.1602
Use of aerial tramways to transport persons.
§ 77.1603
Trains and locomotives; authorized persons.
§ 77.1604
Transportation of persons; overcrowding.
§ 77.1605
Loading and haulage equipment; installations.
§ 77.1606
Loading and haulage equipment; inspection and maintenance.
§ 77.1607
Loading and haulage equipment; operation.
§ 77.1608
Dumping facilities.
§ 77.1700
Communications in work areas.
§ 77.1701
Emergency communications; requirements.
§ 77.1702
Arrangements for emergency medical assistance and transportation for injured persons; reporting requirements; posting requirements.
§ 77.1703
First-Aid training; supervisory employees.
§ 77.1704
First aid training program; availability of instruction to all miners.
§ 77.1705
First aid training program; retraining of supervisory employees; availability to all miners.
§ 77.1706
First aid training program; minimum requirements.
§ 77.1707
First aid equipment; location; minimum requirements.
§ 77.1708
Safety program; instruction of persons employed at the mine.
§ 77.1710
Protective clothing; requirements.
§ 77.1710-1
Distinctively colored hard hats or hard caps; identification for newly employed, inexperienced miners.
§ 77.1711
Smoking prohibition.
§ 77.1712
Reopening mines; notification; inspection prior to mining.
§ 77.1713
Daily inspection of surface coal mine; certified person; reports of inspection.
§ 77.1800
Cutout switches.
§ 77.1801
Overcurrent protection.
§ 77.1801-1
Devices for overcurrent protection.
§ 77.1802
Insulation of trolley wires, trolley feeder wires and bare signal wires; guarding of trolley wires and trolley feeder wires.
§ 77.1900
Slopes and shafts; approval of plans.
§ 77.1900-1
Compliance with approved slope and shaft sinking plans.
§ 77.1901
Preshift and onshift inspections; reports.
§ 77.1901-1
Methane and oxygen deficiency tests; approved devices.
§ 77.1902
Drilling and mucking operations.
§ 77.1902-1
Permissible diesel-powered equipment.
§ 77.1903
Hoists and hoisting; minimum requirements.
§ 77.1904
Communications between slope and shaft bottoms and hoist operators.
§ 77.1905
Hoist safeguards; general.
§ 77.1906
Hoists; daily inspection.
§ 77.1907
Hoist construction; general.
§ 77.1908
Hoist installations; use.
§ 77.1908-1
Hoist operation; qualified hoistman.
§ 77.1909
Explosives and blasting; use of permissible explosives and shot-firing units.
§ 77.1909-1
Use of nonpermissible explosives and nonpermissible shot-firing units; approval by Health and Safety District Manager.
§ 77.1910
Explosives and blasting; general.
§ 77.1911
Ventilation of slopes and shafts.
§ 77.1912
Ladders and stairways.
§ 77.1913
Fire-resistant wood.
§ 77.1914
Electrical equipment.
§ 77.1915
Storage and handling of combustible materials.
§ 77.1916
Welding, cutting, and soldering; fire protection.
§ 77.2100
Purpose and scope.
§ 77.2101
Definitions.
§ 77.2102
Written safety program.
§ 77.2103
Requirements for written safety program.
§ 77.2104
Record and inspection.