30 CFR 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
July 29, 2020
CFR

Motor-Driven Mine Equipment

Open Table
Approval No. Date
Air Compressors
128 March 21, 1927.
128A July 16, 1926.
Coal Drills and Drilling Machines
Hand Drills
109 September 19, 1922.
154 August 1, 1928.
184 February 7, 1930.
227 July 29, 1931.
254 July 15, 1933.
Post Drills
119 April 15, 1925.
119A       Do.
225 July 10, 1931.
225A       Do.
228 August 12, 1931.
228A February 17, 1932.
230 August 20, 1931.
230A       Do.
237 December 1, 1931.
237A       Do.
Drilling Machines
147 February 8, 1928.
147A       Do.
176 September 9, 1929.
176A       Do.
Loading and Conveying Equipment
loading machines
Unmounted Type
122 January 8, 1926.
122A       Do.
Caterpillar-Mounted Type
150 May 11, 1928.
186 March 15, 1930.
222 May 8, 1931.
222A July 28, 1931.
229 August 17, 1931.
229A       Do.
235 November 27, 1931.
235A October 29, 1931.
278 January 17, 1935.
278A       Do.
283A March 12, 1935.
284A       Do.
285A       Do.
294 September 18, 1935.
300A May 6, 1936.
127 July 16, 1926.
127A September 23, 1927.
Track-Mounted Type
194 June 6, 1930.
194A       Do.
217 February 27, 1931.
217A       Do.
276 January 11, 1935.
277 January 17, 1935.
282A March 12, 1935.
291A July 3, 1935.
Pit-Car Loaders
167 March 27, 1929.
167A       Do.
175 July 26, 1929.
175A June 24, 1929.
250 December 10, 1932.
250A       Do.
252A February 20, 1933.
Conveyors
Belt Type
236 November 19, 1931.
287A March 12, 1935.
296A January 6, 1936.
Chain Type
151 May 19, 1928.
209 December 2, 1930.
240 March 12, 1932.
240A       Do.
298A March 3, 1936.
Power Units for Conveyors
265 February 12, 1934.
265A March 19, 1934.
390A March 23, 1934.
Shaker Type
247 October 21, 1932.
257A August 11, 1933.
262A December 8, 1933.
271 May 20, 1935.
271A October 17, 1934.
274A December 13, 1934.
286A March 12, 1935.
295 September 20, 1935.
299A April 9, 1936.
Scraper-type Loaders
138 August 5, 1927.
138A       Do.
196 September 29, 1930.
196A July 26, 1930.
226 July 27, 1931.
255 July 31, 1933.
256       Do.
Mining Machines, Machinery-Moving Equipment, Miscellaneous Trucks, and Water Spray Supply Units
mining machines
Shortwall Machines
103 November 2, 1917.
103A       Do.
105 February 9, 1922.
105A       Do.
106       Do.
106A       Do.
107       Do.
107A       Do.
108       Do.
108A       Do.
111 October 16, 1922.
111A       Do.
113 November 4, 1924.
113A       Do.
114 February 7, 1925.
114A       Do.
115       Do.
115A       Do.
153 July 31, 1928.
153A       Do.
193 June 3, 1930.
193A       Do.
197 July 31, 1930.
197A       Do.
198 August 1, 1930.
198A       Do.
201 September 8, 1930.
201A       Do.
204 October 13, 1930.
204A December 13, 1930.
223 May 13, 1931.
223A       Do.
241 March 18, 1932.
241A       Do.
258 August 15, 1933.
259A August 16, 1933.
260A August 17, 1933.
273 November 30, 1934.
288 March 27, 1935.
288A       Do.
292 September 11, 1935.
292A       Do.
293A       Do.
Longwall Machines
185 February 24, 1930.
185A       Do.
218 March 10, 1931.
218A       Do.
246 August 19, 1932.
246A       Do.
261 September 12, 1933.
Track or caterpillar mounted
112 March 13, 1924.
112A       Do.
118 March 12, 1925.
118A       Do.
125 April 26, 1926.
125A       Do.
172 April 30, 1929.
172A       Do.
188 April 15, 1930.
188A       Do.
207 November 14, 1930.
207A       Do.
216 February 12, 1931.
216A       Do.
231 August 31, 1931.
231A       Do.
242 April 7, 1932.
244 June 18, 1932.
244A September 20, 1932.
253A February 25, 1933.
267 June 27, 1934.
268A July 25, 1934.
269A September 24, 1934.
280A March 4, 1935.
297 January 27, 1936.
297A       Do.
Mine Pumps
140 November 1, 1927.
140A       Do.
143       Do.
143A       Do.
144       Do.
144A       Do.
199 August 18, 1930.
199A       Do.
208 November 29, 1930.
210 December 15, 1930.
210A       Do.
211 December 17, 1930.
211A       Do.
213 December 29, 1930.
213A       Do.
214 January 2, 1931.
214A       Do.
215       Do.
215A       Do.
248 October 31, 1932.
248A November 23, 1932.
264 January 31, 1934.
264A       Do.
272 October 23, 1934.
272A       Do.
Rock-Dusting Machines
130 November 5, 1926.
137 July 2, 1927.
146 January 20, 1928.
146A April 3, 1928.
180 October 30, 1929.
180A January 17, 1930.
206 November 12, 1930.
279 February 14, 1935.
Room and Car-Spotting Hoists
116 February 13, 1925.
116A       Do.
164 January 21, 1931.
164A       Do.
165       Do.
165A       Do.
169 April 5, 1929.
169A February 26, 1934.
190 April 20, 1930.
251A January 16, 1933.
263 January 11, 1934.
266A February 27, 1934.
Storage-Battery Locomotives and Power Trucks
(Approved under Schedules 15, 2C, 2D, and 2E)
Gathering Locomotives
1501 October 11, 1921.
1502 November 13, 1922.
1503 March 24, 1923.
1505 April 5, 1924.
1507 August 20, 1925.
1508 March 21, 1925.
1509 September 25, 1925.
1511 November 10, 1925.
1512 November 11, 1925.
1513 February 25, 1926.
1516 December 28, 1926.
1517 February 10, 1927.
1520 May 27, 1929.
1521 June 13, 1930.
1522 September 12, 1930.
1523 December 19, 1930.
1525 July 25, 1934.
1526 December 20, 1935.
Tandem Locomotive
1518 November 21, 1927.
Power Trucks
1506 May 5, 1924.
1505A June 21, 1926.
1510C December 31, 1926.
1514 December 18, 1926.
1515 December 28, 1926.
1512C September 13, 1928.
1519C April 6, 1929.
1524C June 25, 1934.
Junction, Distribution, and Splice Boxes
(Approved under Schedules 2D and 2E)
Junction Boxes
400 June 16, 1928.
400A August 5, 1925.
401 May 11, 1927.
401A       Do.
402       Do.
402A       Do.
403 April 14, 1931.
403A       Do.
405A December 4, 1933.

Tried the LawStack mobile app?

Join thousands and try LawStack mobile for FREE today.

  • Carry the law offline, wherever you go.
  • Download CFR, USC, rules, and state law to your mobile device.