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Title 30

Displaying title 30, up to date as of 7/10/2026. Title 30 was last amended 6/29/2026.
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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 KElectricity57.12001 – 57.12088
Surface and Underground57.12001 – 57.12053
§ 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.
Surface Only57.12065 – 57.12071
§ 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.
Underground Only57.12080 – 57.12088
§ 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.