Home/CFR/Title 30/Part 57
FEDERAL · 30 CFR

Part 57 — Safety and Health Standards—Underground Metal and Nonmetal Mines

604 sections · Title 30: Mineral Resources

§ 57.1Purpose and scope.
§ 57.2Definitions.
§ 57.1000Notification of commencement of operations and closing of mines.
§ 57.3000Definitions.
§ 57.3200Correction of hazardous conditions.
§ 57.3201Location for performing scaling.
§ 57.3202Scaling tools.
§ 57.3203Rock fixtures.
§ 57.3360Ground support use.
§ 57.3400Secondary breakage.
§ 57.3401Examination of ground conditions.
§ 57.3430Activity between machinery or equipment and the highwall or bank.
§ 57.3460Maintenance between machinery or equipment and ribs.
§ 57.3461Rock bursts.
§ 57.4000Definitions.
§ 57.4011Abandoned electric circuits.
§ 57.4057Underground trailing cables.
§ 57.4100Smoking and use of open flames.
§ 57.4101Warning signs.
§ 57.4102Spillage and leakage.
§ 57.4103Fueling internal combustion engines.
§ 57.4104Combustible waste.
§ 57.4130Surface electric substations and liquid storage facilities.
§ 57.4131Surface fan installations and mine openings.
§ 57.4160Underground electric substations and liquid storage facilities.
§ 57.4161Use of fire underground.
§ 57.4200General requirements.
§ 57.4201Inspection.
§ 57.4202Fire hydrants.
§ 57.4203Extinguisher recharging or replacement.
§ 57.4230Surface self-propelled equipment.
§ 57.4260Underground self-propelled equipment.
§ 57.4261Shaft-station waterlines.
§ 57.4262Underground transformer stations, combustible liquid storage and dispensing areas, pump rooms, compressor rooms, and hoist rooms.
§ 57.4263Underground belt conveyors.
§ 57.4330Surface firefighting, evacuation, and rescue procedures.
§ 57.4331Surface firefighting drills.
§ 57.4360Underground alarm systems.
§ 57.4361Underground evacuation drills.
§ 57.4362Underground rescue and firefighting operations.
§ 57.4363Underground evacuation instruction.
§ 57.4400Use restrictions.
§ 57.4401Storage tank foundations.
§ 57.4402Safety can use.
§ 57.4430Surface storage facilities.
§ 57.4431Surface storage restrictions.
§ 57.4460Storage of flammable liquids underground.
§ 57.4461Gasoline use restrictions underground.
§ 57.4462Storage of combustible liquids underground.
§ 57.4463Liquefied petroleum gas use underground.
§ 57.4500Heat sources.
§ 57.4501Fuel lines.
§ 57.4502Battery-charging stations.
§ 57.4503Conveyor belt slippage.
§ 57.4504Fan installations.
§ 57.4505Fuel lines to underground areas.
§ 57.4530Exits for surface buildings and structures.
§ 57.4531Surface flammable or combustible liquid storage buildings or rooms.
§ 57.4532Blacksmith shops.
§ 57.4533Mine opening vicinity.
§ 57.4560Mine entrances.
§ 57.4561Stationary diesel equipment underground.
§ 57.4600Extinguishing equipment.
§ 57.4601Oxygen cylinder storage.
§ 57.4602Gauges and regulators.
§ 57.4603Closure of valves.
§ 57.4604Preparation of pipelines or containers.
§ 57.4660Work in shafts, raises, or winzes and other activities involving hazard areas.
§ 57.4760Shaft mines.
§ 57.4761Underground shops.
§ 57.5001Exposure limits for airborne contaminants.
§ 57.5001TExposure limits for airborne contaminants.
§ 57.5002Exposure monitoring.
§ 57.5005Control of exposure to airborne contaminants.
§ 57.5005TControl of exposure to airborne contaminants.
§ 57.5006Restricted use of chemicals.
§ 57.5015Oxygen deficiency.
§ 57.5037Radon daughter exposure monitoring.
§ 57.5038Annual exposure limits.
§ 57.5039Maximum permissible concentration.
§ 57.5040Exposure records.
§ 57.5041Smoking prohibition.
§ 57.5042Revised exposure levels.
§ 57.5044Respirators.
§ 57.5045Posting of inactive workings.
§ 57.5046Protection against radon gas.
§ 57.5047Gamma radiation surveys.
§ 57.5060Limit on exposure to diesel particulate matter.
§ 57.5061Compliance determinations.
§ 57.5065Fueling practices.
§ 57.5066Maintenance standards.
§ 57.5067Engines.
§ 57.5070Miner training.
§ 57.5071Exposure monitoring.
§ 57.5075Diesel particulate records.
§ 57.6000Definitions.
§ 57.6100Separation of stored explosive material.
§ 57.6101Areas around explosive material storage facilities.
§ 57.6102Explosive material storage practices.
§ 57.6130Explosive material storage facilities.
§ 57.6131Location of explosive material storage facilities.
§ 57.6132Magazine requirements.
§ 57.6133Powder chests.
§ 57.6160Main facilities.
§ 57.6161Auxiliary facilities.
§ 57.6200Delivery to storage or blast site areas.
§ 57.6201Separation of transported explosive material.
§ 57.6202Vehicles.
§ 57.6203Locomotives.
§ 57.6204Hoists.
§ 57.6205Conveying explosives by hand.
§ 57.6300Control of blasting operations.
§ 57.6301Blasthole obstruction check.
§ 57.6302Separation of explosive material.
§ 57.6303Initiation preparation.
§ 57.6304Primer protection.
§ 57.6305Unused explosive material.
§ 57.6306Loading, blasting, and security.
§ 57.6307Drill stem loading.
§ 57.6308Initiation systems.
§ 57.6309Fuel oil requirements for ANFO.
§ 57.6310Misfire waiting period.
§ 57.6311Handling of misfires.
§ 57.6312Secondary blasting.
§ 57.6400Compatibility of electric detonators.
§ 57.6401Shunting.
§ 57.6402Deenergized circuits near detonators.
§ 57.6403Branch circuits.
§ 57.6404Separation of blasting circuits from power source.
§ 57.6405Firing devices.
§ 57.6406Duration of current flow.
§ 57.6407Circuit testing.
§ 57.6500Damaged initiating material.
§ 57.6501Nonelectric initiation systems.
§ 57.6502Safety fuse.
§ 57.6600Loading practices.
§ 57.6601Grounding.
§ 57.6602Static electricity dissipation during loading.
§ 57.6603Air gap.
§ 57.6604Precautions during storms.
§ 57.6605Isolation of blasting circuits.
§ 57.6700Nonsparking tools.
§ 57.6701Tamping and loading pole requirements.
§ 57.6800Storage facilities.
§ 57.6801Vehicle repair.
§ 57.6802Bulk delivery vehicles.
§ 57.6803Blasting lines.
§ 57.6900Damaged or deteriorated explosive material.
§ 57.6901Black powder.
§ 57.6902Excessive temperatures.
§ 57.6903Burning explosive material.
§ 57.6904Smoking and open flames.
§ 57.6905Protection of explosive material.
§ 57.6960Mixing of explosive material.
§ 57.7002Equipment defects.
§ 57.7003Drill area inspection.
§ 57.7004Drill mast.
§ 57.7005Augers and drill stems.
§ 57.7008Moving the drill.
§ 57.7009Drill helpers.
§ 57.7010Power failures.
§ 57.7011Straightening crossed cables.
§ 57.7012Tending drills in operation.
§ 57.7013Covering or guarding drill holes.
§ 57.7018Hand clearance.
§ 57.7028Hand clearance.
§ 57.7032Anchoring.
§ 57.7050Tool and drill steel racks.
§ 57.7051Loose objects on the mast or drill platform.
§ 57.7052Drilling positions.
§ 57.7053Moving hand-held drills.
§ 57.7054Starting or moving drill equipment.
§ 57.7055Intersecting holes.
§ 57.7056Collaring in bootlegs.
§ 57.7801Jet drills.
§ 57.7802Oxygen hose lines.
§ 57.7803Lighting the burner.
§ 57.7804Refueling.
§ 57.7805Smoking and open flames.
§ 57.7806Oxygen intake coupling.
§ 57.7807Flushing the combustion chamber.
§ 57.8518Main and booster fans.
§ 57.8519Underground main fan controls.
§ 57.8520Ventilation plan.
§ 57.8525Main fan maintenance.
§ 57.8527Oxygen-deficiency testing.
§ 57.8528Unventilated areas.
§ 57.8529Auxiliary fan systems.
§ 57.8531Construction and maintenance of ventilation doors.
§ 57.8532Opening and closing ventilation doors.
§ 57.8534Shutdown or failure of auxiliary fans.
§ 57.8535Seals.
§ 57.9100Traffic control.
§ 57.9101Operating speeds and control of equipment.
§ 57.9102Movement of independently operating rail equipment.
§ 57.9103Clearance on adjacent tracks.
§ 57.9104Railroad crossings.
§ 57.9160Train movement during shift changes.
§ 57.9200Transporting persons.
§ 57.9201Loading, hauling, and unloading of equipment or supplies.
§ 57.9202Loading and hauling large rocks.
§ 57.9260Supplies, materials, and tools on mantrips.
§ 57.9261Transporting tools and materials on locomotives.
§ 57.9300Berms or guardrails.
§ 57.9301Dump site restraints.
§ 57.9302Protection against moving or runaway railroad equipment.
§ 57.9303Construction of ramps and dumping facilities.
§ 57.9304Unstable ground.
§ 57.9305Truck spotters.
§ 57.9306Warning devices for restricted clearances.
§ 57.9307Design, installation, and maintenance of railroads.
§ 57.9308Switch throws.
§ 57.9309Chute design.
§ 57.9310Chute hazards.
§ 57.9311Anchoring stationary sizing devices.
§ 57.9312Working around drawholes.
§ 57.9313Roadway maintenance.
§ 57.9314Trimming stockpile and muckpile faces.
§ 57.9315Dust control.
§ 57.9316Notifying the equipment operator.
§ 57.9317Suspended loads.
§ 57.9318Getting on or off moving equipment.
§ 57.9319Going over, under, or between railcars.
§ 57.9330Clearance for surface equipment.
§ 57.9360Shelter holes.
§ 57.9361Drawholes.
§ 57.9362Protection of signalmen.
§ 57.10001Filling buckets.
§ 57.10002Inspection and maintenance.
§ 57.10003Correction of defects.
§ 57.10004Brakes.
§ 57.10005Track cable connections.
§ 57.10006Tower guards.
§ 57.10007Falling object protection.
§ 57.10008Riding tramways.
§ 57.10009Riding loaded buckets.
§ 57.10010Starting precautions.
§ 57.11001Safe access.
§ 57.11002Handrails and toeboards.
§ 57.11003Construction and maintenance of ladders.
§ 57.11004Portable rigid ladders.
§ 57.11005Fixed ladder anchorage and toe clearance.
§ 57.11006Fixed ladder landings.
§ 57.11007Wooden components of ladders.
§ 57.11008Restricted clearance.
§ 57.11009Walkways along conveyors.
§ 57.11010Stairstep clearance.
§ 57.11011Use of ladders.
§ 57.11012Protection for openings around travelways.
§ 57.11013Conveyor crossovers.
§ 57.11014Crossing moving conveyors.
§ 57.11016Snow and ice on walkways and travelways.
§ 57.11017Inclined fixed ladders.
§ 57.11025Railed landings, backguards, and other protection for fixed ladders.
§ 57.11026Protection for inclined fixed ladders.
§ 57.11027Scaffolds and working platforms.
§ 57.11036Ladderway trap doors and guards.
§ 57.11037Ladderway openings.
§ 57.11038Entering a manway.
§ 57.11040Inclined travelways.
§ 57.11041Landings for inclined ladderways.
§ 57.11050Escapeways and refuges.
§ 57.11051Escape routes.
§ 57.11052Refuge areas.
§ 57.11053Escape and evacuation plans.
§ 57.11054Communication with refuge chambers.
§ 57.11055Inclined escapeways.
§ 57.11056Emergency hoists.
§ 57.11058Check-in, check-out system.
§ 57.11059Respirable atmosphere for hoist operators underground.
§ 57.12001Circuit overload protection.
§ 57.12002Controls and switches.
§ 57.12003Trailing cable overload protection.
§ 57.12004Electrical conductors.
§ 57.12005Protection of power conductors from mobile equipment.
§ 57.12006Distribution boxes.
§ 57.12007Junction box connection procedures.
§ 57.12008Insulation and fittings for power wires and cables.
§ 57.12010Isolation or insulation of communication conductors.
§ 57.12011High-potential electrical conductors.
§ 57.12012Bare signal wires.
§ 57.12013Splices and repairs of power cables.
§ 57.12014Handling energized power cables.
§ 57.12016Work on electrically-powered equipment.
§ 57.12017Work on power circuits.
§ 57.12018Identification of power switches.
§ 57.12019Access to stationary electrical equipment or switchgear.
§ 57.12020Protection of persons at switchgear.
§ 57.12021Danger signs.
§ 57.12022Authorized persons at major electrical installations.
§ 57.12023Guarding electrical connections and resistor grids.
§ 57.12025Grounding circuit enclosures.
§ 57.12026Grounding transformer and switchgear enclosures.
§ 57.12027Grounding mobile equipment.
§ 57.12028Testing grounding systems.
§ 57.12030Correction of dangerous conditions.
§ 57.12032Inspection and cover plates.
§ 57.12033Hand-held electric tools.
§ 57.12034Guarding around lights.
§ 57.12035Weatherproof lamp sockets.
§ 57.12036Fuse removal or replacement.
§ 57.12037Fuses in high-potential circuits.
§ 57.12038Attachment of trailing cables.
§ 57.12039Protection of surplus trailing cables.
§ 57.12040Installation of operating controls.
§ 57.12041Design of switches and starting boxes.
§ 57.12042Track bonding.
§ 57.12045Overhead powerlines.
§ 57.12047Guy wires.
§ 57.12048Communication conductors on power poles.
§ 57.12050Installation of trolley wires.
§ 57.12053Circuits powered from trolley wires.
§ 57.12065Short circuit and lightning protection.
§ 57.12066Guarding trolley wires and bare powerlines.
§ 57.12067Installation of transformers.
§ 57.12068Locking transformer enclosures.
§ 57.12069Lightning protection for telephone wires and ungrounded conductors.
§ 57.12071Movement or operation of equipment near high-voltage powerlines.
§ 57.12080Bare conductor guards.
§ 57.12081Bonding metal pipelines to ground return circuits.
§ 57.12082Isolation of powerlines.
§ 57.12083Support of power cables in shafts and boreholes.
§ 57.12084Branch circuit disconnecting devices.
§ 57.12085Transformer stations.
§ 57.12086Location of trolley wire.
§ 57.12088Splicing trailing cables.
§ 57.13001General requirements for boilers and pressure vessels.
§ 57.13010Reciprocating-type air compressors.
§ 57.13011Air receiver tanks.
§ 57.13012Compressor air intakes.
§ 57.13015Inspection of compressed-air receivers and other unfired pressure vessels.
§ 57.13017Compressor discharge pipes.
§ 57.13019Pressure system repairs.
§ 57.13020Use of compressed air.
§ 57.13021High-pressure hose connections.
§ 57.13030Boilers.
§ 57.14000Definitions.
§ 57.14100Safety defects; examination, correction and records.
§ 57.14101Brakes.
§ 57.14102Brakes for rail equipment.
§ 57.14103Operators' stations.
§ 57.14104Tire repairs.
§ 57.14105Procedures during repairs or maintenance.
§ 57.14106Falling object protection.
§ 57.14107Moving machine parts.
§ 57.14108Overhead drive belts.
§ 57.14109Unguarded conveyors with adjacent travelways.
§ 57.14110Flying or falling materials.
§ 57.14111Slusher, backlash guards and securing.
§ 57.14112Construction and maintenance of guards.
§ 57.14113Inclined conveyors: backstops or brakes.
§ 57.14114Air valves for pneumatic equipment.
§ 57.14115Stationary grinding machines.
§ 57.14116Hand-held power tools.
§ 57.14130Roll-over protective structures (ROPS) and seat belts for surface equipment.
§ 57.14131Seat belts for surface haulage trucks.
§ 57.14132Horns and backup alarms for surface equipment.
§ 57.14160Mantrip trolley wire hazards underground.
§ 57.14161Makeshift couplings.
§ 57.14162Trip lights.
§ 57.14200Warnings prior to starting or moving equipment.
§ 57.14201Conveyor start-up warnings.
§ 57.14202Manual cleaning of conveyor pulleys.
§ 57.14203Application of belt dressing.
§ 57.14204Machinery lubrication.
§ 57.14205Machinery, equipment, and tools.
§ 57.14206Securing movable parts.
§ 57.14207Parking procedures for unattended equipment.
§ 57.14208Warning devices.
§ 57.14209Safety procedures for towing.
§ 57.14210Movement of dippers, buckets, loading booms, or suspended loads.
§ 57.14211Blocking equipment in a raised position.
§ 57.14212Chains, ropes, and drive belts.
§ 57.14213Ventilation and shielding for welding.
§ 57.14214Train warnings.
§ 57.14215Coupling or uncoupling cars.
§ 57.14216Backpoling.
§ 57.14217Securing parked railcars.
§ 57.14218Movement of equipment on adjacent tracks.
§ 57.14219Brakeman signals.
§ 57.15001First aid materials.
§ 57.15002Hard hats.
§ 57.15003Protective footwear.
§ 57.15004Eye protection.
§ 57.15005Safety belts and lines.
§ 57.15006Protective equipment and clothing for hazards and irritants.
§ 57.15007Protective equipment or clothing for welding, cutting, or working with molten metal.
§ 57.15014Eye protection when operating grinding wheels.
§ 57.15020Life jackets and belts.
§ 57.15030Provision and maintenance of self-rescue devices.
§ 57.15031Location of self-rescue devices.
§ 57.16001Stacking and storage of materials.
§ 57.16002Bins, hoppers, silos, tanks, and surge piles.
§ 57.16003Storage of hazardous materials.
§ 57.16004Containers for hazardous materials.
§ 57.16005Securing gas cylinders.
§ 57.16006Protection of gas cylinder valves.
§ 57.16007Taglines, hitches, and slings.
§ 57.16009Suspended loads.
§ 57.16010Dropping materials from overhead.
§ 57.16011Riding hoisted loads or on the hoist hook.
§ 57.16012Storage of incompatible substances.
§ 57.16013Working with molten metal.
§ 57.16014Operator-carrying overhead cranes.
§ 57.16015Work or travel on overhead crane bridges.
§ 57.16016Lift trucks.
§ 57.16017Hoisting heavy equipment or material.
§ 57.17001Illumination of surface working areas.
§ 57.17010Electric lamps.
§ 57.18002Examination of working places.
§ 57.18006New employees.
§ 57.18009Designation of person in charge.
§ 57.18010First aid.
§ 57.18012Emergency telephone numbers.
§ 57.18013Emergency communications system.
§ 57.18014Emergency medical assistance and transportation.
§ 57.18020Working alone.
§ 57.18025Working alone.
§ 57.18028Mine emergency and self-rescuer training.
§ 57.19000Application.
§ 57.19001Rated capacities.
§ 57.19002Anchoring.
§ 57.19003Driving mechanism connections.
§ 57.19004Brakes.
§ 57.19005Locking mechanism for clutch.
§ 57.19006Automatic hoist braking devices.
§ 57.19007Overtravel and overspeed devices.
§ 57.19008Friction hoist synchronizing mechanisms.
§ 57.19009Position indicator.
§ 57.19010Location of hoist controls.
§ 57.19011Drum flanges.
§ 57.19012Grooved drums.
§ 57.19013Diesel- and other fuel-injection-powered hoists.
§ 57.19014Friction hoist overtravel protection.
§ 57.19017Emergency braking for electric hoists.
§ 57.19018Overtravel by-pass switches.
§ 57.19019Guide ropes.
§ 57.19021Minimum rope strength.
§ 57.19022Initial measurement.
§ 57.19023Examinations.
§ 57.19024Retirement criteria.
§ 57.19025Load end attachments.
§ 57.19026Drum end attachment.
§ 57.19027End attachment retermination.
§ 57.19028End attachment replacement.
§ 57.19030Safety device attachments.
§ 57.19035Headframe design.
§ 57.19036Headframe height.
§ 57.19037Fleet angles.
§ 57.19038Platforms around elevated head sheaves.
§ 57.19045Metal bonnets.
§ 57.19049Hoisting persons in buckets.
§ 57.19050Bucket requirements.
§ 57.19054Rope guides.
§ 57.19055Availability of hoist operator for manual hoists.
§ 57.19056Availability of hoist operator for automatic hoists.
§ 57.19057Hoist operator's physical fitness.
§ 57.19058Experienced hoist operators.
§ 57.19061Maximum hoisting speeds.
§ 57.19062Maximum acceleration and deceleration.
§ 57.19063Persons allowed in hoist room.
§ 57.19065Lowering conveyances by the brakes.
§ 57.19066Maximum riders in a conveyance.
§ 57.19067Trips during shift changes.
§ 57.19068Orderly conduct in conveyances.
§ 57.19069Entering and leaving conveyances.
§ 57.19070Closing cage doors or gates.
§ 57.19071Riding in skips or buckets.
§ 57.19072Skips and cages in same compartment.
§ 57.19073Hoisting during shift changes.
§ 57.19074Riding the bail, rim, bonnet, or crosshead.
§ 57.19075Use of open hooks.
§ 57.19076Maximum speeds for hoisting persons in buckets.
§ 57.19077Lowering buckets.
§ 57.19078Hoisting buckets from the shaft bottom.
§ 57.19079Blocking mine cars.
§ 57.19080Hoisting tools, timbers, and other materials.
§ 57.19081Conveyances not in use.
§ 57.19083Overtravel backout device.
§ 57.19090Dual signaling systems.
§ 57.19091Signaling instructions to hoist operator.
§ 57.19092Signaling from conveyances.
§ 57.19093Standard signal code.
§ 57.19094Posting signal code.
§ 57.19095Location of signal devices.
§ 57.19096Familiarity with signal code.
§ 57.19100Shaft landing gates.
§ 57.19101Stopblocks and derail switches.
§ 57.19102Shaft guides.
§ 57.19103Dumping facilities and loading pockets.
§ 57.19104Clearance at shaft stations.
§ 57.19105Landings with more than one shaft entrance.
§ 57.19106Shaft sets.
§ 57.19107Precautions for work in compartment affected by hoisting operation.
§ 57.19108Posting warning signs during shaft work.
§ 57.19109Shaft inspection and repair.
§ 57.19110Overhead protection for shaft deepening work.
§ 57.19111Shaft-sinking ladders.
§ 57.19120Procedures for inspection, testing, and maintenance.
§ 57.19121Recordkeeping.
§ 57.19122Replacement parts.
§ 57.19129Examinations and tests at beginning of shift.
§ 57.19130Conveyance shaft test.
§ 57.19131Hoist conveyance connections.
§ 57.19132Safety catches.
§ 57.19133Shaft.
§ 57.19134Sheaves.
§ 57.19135Rollers in inclined shafts.
§ 57.20001Intoxicating beverages and narcotics.
§ 57.20002Potable water.
§ 57.20003Housekeeping.
§ 57.20005Carbon tetrachloride.
§ 57.20008Toilet facilities.
§ 57.20009Tests for explosive dusts.
§ 57.20010Retaining dams.
§ 57.20011Barricades and warning signs.
§ 57.20013Waste receptacles.
§ 57.20014Prohibited areas for food and beverages.
§ 57.20020Unattended mine openings.
§ 57.20021Abandoned mine openings.
§ 57.20031Blasting underground in hazardous areas.
§ 57.20032Two-way communication equipment for underground operations.
§ 57.22001Scope.
§ 57.22002Definitions.
§ 57.22003Mine category or subcategory.
§ 57.22004Category placement or change in placement.
§ 57.22005Notice and appeal of placement or change in placement.
§ 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).
§ 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).
§ 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).
§ 57.22401Underground retorts (I-A and I-B mines).
§ 57.22501Personal electric lamps (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines).
§ 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).
§ 57.23000Purpose and scope.
§ 57.23001Definitions.
§ 57.23002Written safety program.
§ 57.23003Requirements for written safety program.
§ 57.23004Record and inspection.