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When insulated wires, other than cables, pass through metal frames, the holes shall be substantially bushed with insulated bushings.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.1110","heading":"Examination and maintenance of firefighting equipment.","id":"77.1110","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-L/section-77.1110","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":"Firefighting equipment shall be continuously maintained in a usable and operative condition. Fire extinguishers shall be examined at least once every 6 months and the date of such examination shall be recorded on a permanent tag attached to the extinguisher.\n\n(Pub. L. No. 96-511, 94 Stat. 2812 (44 U.S.C. 3501 et seq.))\n\n[36 FR 9364, May 22, 1971, as amended at 60 FR 33723, June 29, 1995]","occurrenceCount":1},{"chapter":"I","heading":"Sanitary toilet facilities at surface work sites; installation requirements.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-71/subpart-F/section-71.500","part":"71","subchapter":"O","subpart":"F","id":"71.500","citation":"30 CFR 71.500","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","partHeading":"PART 71—MANDATORY HEALTH STANDARDS—SURFACE COAL MINES AND SURFACE WORK AREAS OF UNDERGROUND COAL MINES","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","heading":"Noise exposure assessment.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.110","part":"62","subchapter":"M","subpart":"","id":"62.110","citation":"30 CFR 62.110","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","subchapterHeading":"SUBCHAPTER M—UNIFORM MINE HEALTH REGULATIONS","partHeading":"PART 62—OCCUPATIONAL NOISE EXPOSURE","subpartHeading":"","text":null,"occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 62.130","heading":"Permissible exposure level.","id":"62.130","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-M/part-62/section-62.130","part":"62","partHeading":"PART 62—OCCUPATIONAL NOISE EXPOSURE","subchapter":"M","subchapterHeading":"SUBCHAPTER M—UNIFORM MINE HEALTH REGULATIONS","subpart":"","subpartHeading":"","text":"(a) The mine operator must assure that no miner is exposed during any work shift to noise that exceeds the permissible exposure level. If during any work shift a miner's noise exposure exceeds the permissible exposure level, the mine operator must use all feasible engineering and administrative controls to reduce the miner's noise exposure to the permissible exposure level, and enroll the miner in a hearing conservation program that complies with § 62.150 of this part. When a mine operator uses administrative controls to reduce a miner's exposure, the mine operator must post the procedures for such controls on the mine bulletin board and provide a copy to the affected miner.\n\n(b) If a miner's noise exposure continues to exceed the permissible exposure level despite the use of all feasible engineering and administrative controls, the mine operator must continue to use the engineering and administrative controls to reduce the miner's noise exposure to as low a level as is feasible.\n\n(c) The mine operator must assure that no miner is exposed at any time to sound levels exceeding 115 dBA, as determined without adjustment for the use of any hearing protector.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.205","heading":"Travelways at surface installations.","id":"77.205","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-C/section-77.205","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":"C","subpartHeading":"Subpart C—Surface Installations","text":"(a) Safe means of access shall be provided and maintained to all working places.\n\n(b) Travelways and platforms or other means of access to areas where persons are required to travel or work, shall be kept clear of all extraneous material and other stumbling or slipping hazards.\n\n(c) Inclined travelways shall be constructed of nonskid material or equipped with cleats.\n\n(d) Regularly used travelways shall be sanded, salted, or cleared of snow and ice as soon as practicable.\n\n(e) Crossovers, elevated walkways, elevated ramps, and stairways shall be of substantial construction, provided with handrails, and maintained in good condition. Where necessary toeboards shall be provided.\n\n(f) Crossovers shall be provided where it is necessary to cross conveyors.\n\n(g) Moving conveyors shall be crossed only at designated crossover points.","occurrenceCount":1},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 77.400","heading":"Mechanical equipment guards.","id":"77.400","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-77/subpart-E/section-77.400","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":"E","subpartHeading":"Subpart E—Safeguards for Mechanical Equipment","text":"(a) Gears; sprockets; chains; drive, head, tail, and takeup pulleys; flywheels; couplings; shafts; sawblades; fan inlets; and similar exposed moving machine parts which may be contacted by persons, and which may cause injury to persons shall be guarded.\n\n(b) Overhead belts shall be guarded if the whipping action from a broken line would be hazardous to persons below.\n\n(c) Guards at conveyor-drive, conveyor-head, and conveyor-tail pulleys shall extend a distance sufficient to prevent a person from reaching behind the guard and becoming caught between the belt and the pulley.\n\n(d) Except when testing the machinery, guards shall be securely in place while machinery is being operated.","occurrenceCount":1}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"1519729","dataSource":"postgres","snapshotId":"2026-10-17T05:35:58.500035+00:00","completedAt":"2026-10-17T06:17:15.228Z","sourceCount":20,"totalRows":15450873}}