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Requires PostgreSQL."},"silica":{"href":"/api/v1/mines/3303349/silica","description":"Dedicated silica records, measurements, sample status and trends. Defaults to the snapshot year; use year=all for history."},"externalContext":{"eia":null,"title30":{"snapshot":{"chapterCount":6,"featuredSectionCount":100,"latestAmendedOn":"2026-08-14","latestIssueDate":"2026-08-14","partCount":206,"sectionCount":5954,"upToDateAsOf":"2026-08-19"},"regulations":[{"chapter":"I","heading":"Smoking programs.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1702-1","part":"75","subchapter":"O","subpart":"R","id":"75.1702-1","citation":"30 CFR 75.1702-1","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.1107-16","heading":"Inspection of fire suppression devices.","id":"75.1107-16","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-L/section-75.1107-16","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"L","subpartHeading":"Subpart L—Fire Protection","text":"(a) All fire suppression devices shall be visually inspected at least once each week by a person qualified to make such inspections.\n\n(b) Each fire suppression device shall be tested and maintained in accordance with the requirements specified in the appropriate National Fire Code listed as follows for the type and kind of device used:\n\nNational Fire Code No. 11A “High Expansion Foam Systems” (NFPA No. 11A—1970). National Fire Code No. 13A “Care and Maintenance of Sprinkler Systems” (NFPA No. 13A—1971). National Fire Code No. 15 “Water Spray Fixed Systems for Fire Protection” (NFPA No. 15—1969). National Fire Code No. 17 “Dry Chemical Extinguishing Systems” (NFPA No. 17—1969). National Fire Code No. 72A “Local Protective Signaling Systems” (NFPA No. 72A—1967). National Fire Code No. 198 “Care of Fire Hose” (NFPA No. 198—1969).\n\n(c) A record of the inspections required by this section shall be maintained by the operator. The record of the weekly inspections may be maintained at an appropriate location by each fire suppression device.\n\n[37 FR 15304, July 29, 1972, as amended at 60 FR 33723, June 29, 1995]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1605","heading":"Loading and haulage equipment; installations.","id":"77.1605","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-Q/section-77.1605","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"Q","subpartHeading":"Subpart Q—Loading and Haulage","text":"(a) Cab windows shall be of safety glass or equivalent, in good condition and shall be kept clean.\n\n(b) Mobile equipment shall be equipped with adequate brakes, and all trucks and front-end loaders shall also be equipped with parking brakes.\n\n(c) Positive-action type brakes shall be provided on aerial tramways.\n\n(d) Mobile equipment shall be provided with audible warning devices. Lights shall be provided on both ends when required.\n\n(e) Guard nets or other suitable protection shall be provided where tramways pass over roadways, walkways, or buildings.\n\n(f) Guards shall be installed to prevent swaying buckets from hitting towers.\n\n(g) Aerial tramway cable connections shall be designed to offer minimum obstruction to the passage of wheels.\n\n(h) Rocker-bottom or bottom-dump cars shall be equipped with positive locking devices, or other suitable devices.\n\n(i) Ramps and dumps shall be of solid construction, of ample width, have ample clearance and headroom, and be kept reasonably free of spillage.\n\n(j) Chute-loading installations shall be designed so that the men pulling chutes are not required to be in a hazardous position during loading operations.\n\n(k) Berms or guards shall be provided on the outer bank of elevated roadways.\n\n(l) Berms, bumper blocks, safety hooks, or similar means shall be provided to prevent overtravel and overturning at dumping locations.\n\n(m) Roadbeds, rails, joints, switches, frogs, and other elements on railroads shall be designed, installed, and maintained in a safe manner consistent with the speed and type of haulage.\n\n(n) Where practicable, a minimum of 30 inches continuous clearance from the farthest projection of moving railroad equipment shall be provided on at least one side of the tracks; all places where it is not possible to provide 30-inch clearance shall be marked conspicuously.\n\n(o) Track guardrails, lead rails, and frogs shall be protected or blocked so as to prevent a person's foot from becoming wedged.\n\n(p) Positive-acting stop-blocks, derail devices, track skates, or other adequate means shall be installed wherever necessary to protect persons from runaway or moving railroad equipment.\n\n(q) Switch throws shall be installed so as to provide adequate clearance for switchmen.\n\n(r) Where necessary, bumper blocks or the equivalent shall be provided at all track dead ends.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.701","heading":"Grounding metallic frames, casings, and other enclosures of electric equipment.","id":"75.701","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-H/section-75.701","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"H","subpartHeading":"Subpart H—Grounding","text":"[Statutory Provisions]\n\nMetallic frames, casings, and other enclosures of electric equipment that can become “alive” through failure of insulation or by contact with energized parts shall be grounded by methods approved by an authorized representative of the Secretary.","occurrenceCount":1},{"chapter":"I","heading":"Hoisting equipment; general.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1400","part":"75","subchapter":"O","subpart":"O","id":"75.1400","citation":"30 CFR 75.1400","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Hoists; brakes, capability.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-O/section-75.1400-1","part":"75","subchapter":"O","subpart":"O","id":"75.1400-1","citation":"30 CFR 75.1400-1","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.512","heading":"Electric equipment; examination, testing and maintenance.","id":"75.512","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-F/section-75.512","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"F","subpartHeading":"Subpart F—Electrical Equipment—General","text":"[Statutory Provision]\n\nAll electric equipment shall be frequently examined, tested, and properly maintained by a qualified person to assure safe operating conditions. When a potentially dangerous condition is found on electric equipment, such equipment shall be removed from service until such condition is corrected. A record of such examinations shall be kept and made available to an authorized representative of the Secretary and to the miners in such mine.\n\n[35 FR 17890, Nov. 20, 1970, as amended at 60 FR 33723, June 29, 1995]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.1505","heading":"Escapeway maps.","id":"75.1505","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-P/section-75.1505","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"P","subpartHeading":"Subpart P—Mine Emergencies","text":"(a) Content and accessibility. An escapeway map shall show the designated escapeways from the working sections or the miners' work stations to the surface or the exits at the bottom of the shaft or slope, refuge alternatives, and SCSR storage locations. The escapeway map shall be posted or readily accessible for all miners—\n\n(1) In each working section;\n\n(2) In each area where mechanized mining equipment is being installed or removed;\n\n(3) At the refuge alternative; and\n\n(4) At a surface location of the mine where miners congregate, such as at the mine bulletin board, bathhouse, or waiting room.\n\n(b) Keeping maps current. All maps shall be kept up-to-date and any change in route of travel, location of doors, location of refuge alternatives, or direction of airflow shall be shown on the maps by the end of the shift on which the change is made.\n\n(c) Informing affected miners. Miners underground on a shift when any such change is made shall be notified immediately of the change and other affected miners shall be informed of the change before entering the underground areas of the mine.\n\n[71 FR 71452, Dec. 8, 2006, as amended at 73 FR 80698, Dec. 31, 2008]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1104","heading":"Accumulations of combustible materials.","id":"77.1104","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1104","part":"77","partHeading":"PART 77—MANDATORY SAFETY STANDARDS, SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"L","subpartHeading":"Subpart L—Fire Protection","text":"Combustible materials, grease, lubricants, paints, or flammable liquids shall not be allowed to accumulate where they can create a fire hazard.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.400","heading":"Accumulation of combustible materials.","id":"75.400","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-E/section-75.400","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"E","subpartHeading":"Subpart E—Combustible Materials and Rock Dusting","text":"Coal dust, including float coal dust deposited on rock-dusted surfaces, loose coal, and other combustible materials, shall be cleaned up and not be permitted to accumulate in active workings, or on diesel-powered and electric equipment therein.\n\n[61 FR 55527, Oct. 25, 1996]","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.604","heading":"Permanent splicing of trailing cables.","id":"75.604","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-G/section-75.604","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"G","subpartHeading":"Subpart G—Trailing Cables","text":"[Statutory Provisions]\n\nWhen permanent splices in trailing cables are made, they shall be:\n\n(a) Mechanically strong with adequate electrical conductivity and flexibility;\n\n(b) Effectively insulated and sealed so as to exclude moisture; and\n\n(c) Vulcanized or otherwise treated with suitable materials to provide flame-resistant qualities and good bonding to the outer jacket.\n\n(d) Made using splice kits accepted or approved by MSHA as flame resistant.\n\n[35 FR 17890, Nov. 20, 1970, as amended at 57 FR 61223, Dec. 23, 1992]","occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"3303349","dataSource":"postgres","snapshotId":"2026-10-18T09:31:49.615908+00:00","completedAt":"2026-10-18T09:31:49.615Z","sourceCount":20,"totalRows":17915666}}