{"data":{"id":"us/30-cfr-appendix-a-to-subpart-f-of-part-75","jurisdiction":"us","citation":"30 CFR Appendix A to Subpart F of Part 75","heading":"Appendix A to Subpart F of Part 75—List of Permissible Electric Face Equipment Approved by the Bureau of Mines Prior to May 23, 1936","body":"Motor-Driven Mine Equipment\n(Approved Under Schedules 2, 2A, 2B, and 2C)\nApproval No. Date\nAir Compressors\n128 March 21, 1927.\n128A July 16, 1926.\nCoal Drills and Drilling Machines\nHand Drills\n109 September 19, 1922.\n154 August 1, 1928.\n184 February 7, 1930.\n227 July 29, 1931.\n254 July 15, 1933.\nPost Drills\n119 April 15, 1925.\n119A Do.\n225 July 10, 1931.\n225A Do.\n228 August 12, 1931.\n228A February 17, 1932.\n230 August 20, 1931.\n230A Do.\n237 December 1, 1931.\n237A Do.\nDrilling Machines\n147 February 8, 1928.\n147A Do.\n176 September 9, 1929.\n176A Do.\nLoading and Conveying Equipment\nloading machines\nUnmounted Type\n122 January 8, 1926.\n122A Do.\nCaterpillar-Mounted Type\n150 May 11, 1928.\n186 March 15, 1930.\n222 May 8, 1931.\n222A July 28, 1931.\n229 August 17, 1931.\n229A Do.\n235 November 27, 1931.\n235A October 29, 1931.\n278 January 17, 1935.\n278A Do.\n283A March 12, 1935.\n284A Do.\n285A Do.\n294 September 18, 1935.\n300A May 6, 1936.\n127 July 16, 1926.\n127A September 23, 1927.\nTrack-Mounted Type\n194 June 6, 1930.\n194A Do.\n217 February 27, 1931.\n217A Do.\n276 January 11, 1935.\n277 January 17, 1935.\n282A March 12, 1935.\n291A July 3, 1935.\nPit-Car Loaders\n167 March 27, 1929.\n167A Do.\n175 July 26, 1929.\n175A June 24, 1929.\n250 December 10, 1932.\n250A Do.\n252A February 20, 1933.\nConveyors\nBelt Type\n236 November 19, 1931.\n287A March 12, 1935.\n296A January 6, 1936.\nChain Type\n151 May 19, 1928.\n209 December 2, 1930.\n240 March 12, 1932.\n240A Do.\n298A March 3, 1936.\nPower Units for Conveyors\n265 February 12, 1934.\n265A March 19, 1934.\n390A March 23, 1934.\nShaker Type\n247 October 21, 1932.\n257A August 11, 1933.\n262A December 8, 1933.\n271 May 20, 1935.\n271A October 17, 1934.\n274A December 13, 1934.\n286A March 12, 1935.\n295 September 20, 1935.\n299A April 9, 1936.\nScraper-type Loaders\n138 August 5, 1927.\n138A Do.\n196 September 29, 1930.\n196A July 26, 1930.\n226 July 27, 1931.\n255 July 31, 1933.\n256 Do.\nMining Machines, Machinery-Moving Equipment, Miscellaneous Trucks, and Water Spray Supply Units\nmining machines\nShortwall Machines\n103 November 2, 1917.\n103A Do.\n105 February 9, 1922.\n105A Do.\n106 Do.\n106A Do.\n107 Do.\n107A Do.\n108 Do.\n108A Do.\n111 October 16, 1922.\n111A Do.\n113 November 4, 1924.\n113A Do.\n114 February 7, 1925.\n114A Do.\n115 Do.\n115A Do.\n153 July 31, 1928.\n153A Do.\n193 June 3, 1930.\n193A Do.\n197 July 31, 1930.\n197A Do.\n198 August 1, 1930.\n198A Do.\n201 September 8, 1930.\n201A Do.\n204 October 13, 1930.\n204A December 13, 1930.\n223 May 13, 1931.\n223A Do.\n241 March 18, 1932.\n241A Do.\n258 August 15, 1933.\n259A August 16, 1933.\n260A August 17, 1933.\n273 November 30, 1934.\n288 March 27, 1935.\n288A Do.\n292 September 11, 1935.\n292A Do.\n293A Do.\nLongwall Machines\n185 February 24, 1930.\n185A Do.\n218 March 10, 1931.\n218A Do.\n246 August 19, 1932.\n246A Do.\n261 September 12, 1933.\nTrack or caterpillar mounted\n112 March 13, 1924.\n112A Do.\n118 March 12, 1925.\n118A Do.\n125 April 26, 1926.\n125A Do.\n172 April 30, 1929.\n172A Do.\n188 April 15, 1930.\n188A Do.\n207 November 14, 1930.\n207A Do.\n216 February 12, 1931.\n216A Do.\n231 August 31, 1931.\n231A Do.\n242 April 7, 1932.\n244 June 18, 1932.\n244A September 20, 1932.\n253A February 25, 1933.\n267 June 27, 1934.\n268A July 25, 1934.\n269A September 24, 1934.\n280A March 4, 1935.\n297 January 27, 1936.\n297A Do.\nMine Pumps\n140 November 1, 1927.\n140A Do.\n143 Do.\n143A Do.\n144 Do.\n144A Do.\n199 August 18, 1930.\n199A Do.\n208 November 29, 1930.\n210 December 15, 1930.\n210A Do.\n211 December 17, 1930.\n211A Do.\n213 December 29, 1930.\n213A Do.\n214 January 2, 1931.\n214A Do.\n215 Do.\n215A Do.\n248 October 31, 1932.\n248A November 23, 1932.\n264 January 31, 1934.\n264A Do.\n272 October 23, 1934.\n272A Do.\nRock-Dusting Machines\n130 November 5, 1926.\n137 July 2, 1927.\n146 January 20, 1928.\n146A April 3, 1928.\n180 October 30, 1929.\n180A January 17, 1930.\n206 November 12, 1930.\n279 February 14, 1935.\nRoom and Car-Spotting Hoists\n116 February 13, 1925.\n116A Do.\n164 January 21, 1931.\n164A Do.\n165 Do.\n165A Do.\n169 April 5, 1929.\n169A February 26, 1934.\n190 April 20, 1930.\n251A January 16, 1933.\n263 January 11, 1934.\n266A February 27, 1934.\nStorage-Battery Locomotives and Power Trucks\n(Approved under Schedules 15, 2C, 2D, and 2E)\nGathering Locomotives\n1501 October 11, 1921.\n1502 November 13, 1922.\n1503 March 24, 1923.\n1505 April 5, 1924.\n1507 August 20, 1925.\n1508 March 21, 1925.\n1509 September 25, 1925.\n1511 November 10, 1925.\n1512 November 11, 1925.\n1513 February 25, 1926.\n1516 December 28, 1926.\n1517 February 10, 1927.\n1520 May 27, 1929.\n1521 June 13, 1930.\n1522 September 12, 1930.\n1523 December 19, 1930.\n1525 July 25, 1934.\n1526 December 20, 1935.\nTandem Locomotive\n1518 November 21, 1927.\nPower Trucks\n1506 May 5, 1924.\n1505A June 21, 1926.\n1510C December 31, 1926.\n1514 December 18, 1926.\n1515 December 28, 1926.\n1512C September 13, 1928.\n1519C April 6, 1929.\n1524C June 25, 1934.\nJunction, Distribution, and Splice Boxes\n(Approved under Schedules 2D and 2E)\nJunction Boxes\n400 June 16, 1928.\n400A August 5, 1925.\n401 May 11, 1927.\n401A Do.\n402 Do.\n402A Do.\n403 April 14, 1931.\n403A Do.\n405A December 4, 1933.","path":["Title 30—Mineral Resources","CHAPTER I—MINE SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT OF LABOR","SUBCHAPTER O—COAL MINE SAFETY AND HEALTH","PART 75—MANDATORY SAFETY STANDARDS—UNDERGROUND COAL MINES","Subpart F—Electrical Equipment—General"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-30.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:24Z","sha256":"2f6c9582980a633359ddc60011c3458bc1b870b81b28e26aada794528666e88e","source_id":"us-cfr","stale":true,"prev":"us/30-cfr-75.524","next":"us/30-cfr-75.600"},"notice":"GroundRules: Original legal text. Not legal advice."}