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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","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":5},{"chapter":"I","heading":"Availability of approved self-rescue devices; instruction in use and location.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714","part":"75","subchapter":"O","subpart":"R","id":"75.1714","citation":"30 CFR 75.1714","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 75.1725","heading":"Machinery and equipment; operation and maintenance.","id":"75.1725","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1725","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"R","subpartHeading":"Subpart R—Miscellaneous","text":"(a) Mobile and stationary machinery and equipment shall be maintained in safe operating condition and machinery or equipment in unsafe condition shall be removed from service immediately.\n\n(b) Machinery and equipment shall be operated only by persons authorized to operate such machinery or equipment.\n\n(c) Repairs or maintenance shall not be performed on machinery until the power is off and the machinery is blocked against motion, except where machinery motion is necessary to make adjustments.\n\n(d) Machinery shall not be lubricated manually while in motion, unless equipped with extended fittings or cups.\n\n[38 FR 4976, Feb. 23, 1973]","occurrenceCount":3},{"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},{"chapter":"I","chapterHeading":"CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","citation":"30 CFR 75.1714-4","heading":"Additional self-contained self-rescuers (SCSRs).","id":"75.1714-4","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714-4","part":"75","partHeading":"PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","subchapter":"O","subchapterHeading":"SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","subpart":"R","subpartHeading":"Subpart R—Miscellaneous","text":"(a) Additional SCSRs in work places. In addition to the requirements in §§ 75.1714, 75.1714-1, 75.1714-2, and 75.1714-3 of this part, the mine operator shall provide the following:\n\n(1) At least one additional SCSR, which provides protection for a period of one hour or longer, for each person at a fixed underground work location.\n\n(2) Additional SCSRs along the normal travel routes for pumpers, examiners, and other persons who do not have a fixed work location to be stored at a distance an average miner could walk in 30 minutes. The SCSR storage locations shall be determined by using one of the methods found under paragraph (c)(2) of this section.\n\n(b) Additional SCSRs on mantrips. If a mantrip or mobile equipment is used to enter or exit the mine, at least one additional SCSR, which provides protection for a period of one hour or longer, shall be available for each person who uses such transportation from portal to portal.\n\n(c) Additional SCSRs in escapeways. When each person underground cannot safely evacuate the mine within 30 minutes, the mine operator shall provide additional SCSRs stored in each required escapeway.\n\n(1) Each storage location shall contain at least one SCSR, which provides protection for a period of one hour or longer, for every person who will be inby that location.\n\n(2) Storage locations shall be spaced along each escapeway at 30-minute travel distances no greater than the distances determined by—\n\n(i) Calculating the distance an average miner walks in 30 minutes by using the time necessary for each miner in a sample of typical miners to walk a typical length of each escapeway; or\n\n(ii) Using the SCSR storage location spacing specified in the following table, except for escapeways with grades over 5 percent.\n\nAverage entry height Maximum distancebetween SCSR storage locations (in ft.) <40 in. (Crawl) 2,200 >40-<50 in. (Duck Walk) 3,300 >50-<65 in. (Walk Head Bent) 4,400 >65 in. (Walk Erect) 5,700\n\n(d) Additional SCSRs in hardened rooms. As an alternative to providing SCSR storage locations in each escapeway, the mine operator may store SCSRs in a hardened room located between adjacent escapeways.\n\n(1) The hardened room shall be designed and constructed to the same explosion force criteria as seals.\n\n(2) The hardened room shall include a means to provide independent, positive pressure ventilation from the surface during an emergency.\n\n(3) The District Manager shall approve the design and construction of hardened rooms in the ventilation plan.\n\n(4) These SCSR storage locations shall be spaced in accordance with paragraph (c) of this section.\n\n(e) Storage location accessibility. All SCSRs required under this section shall be stored according to the manufacturers' instructions, in conspicuous locations readily accessible by each person in the mine.\n\n(f) Storage location signs. A sign made of reflective material with the words “SCSRs” or “SELF-RESCUERS” shall be conspicuously posted at each storage location. Direction signs made of a reflective material shall be posted leading to each storage location.\n\n[71 FR 71454, Dec. 8, 2006]","occurrenceCount":1},{"chapter":"I","heading":"Multi-gas detectors.","officialUrl":"https://www.ecfr.gov/current/title-30/chapter-I/subchapter-O/part-75/subpart-R/section-75.1714-7","part":"75","subchapter":"O","subpart":"R","id":"75.1714-7","citation":"30 CFR 75.1714-7","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}],"fullCorpus":"/data/title30-sections.json"}}},"meta":{"representation":"json","mineId":"4609378","dataSource":"postgres","snapshotId":"2026-10-13T11:19:05.459773+00:00","completedAt":"2026-10-13T11:26:59.401Z","sourceCount":20,"totalRows":17906804}}