Regulations last checked for updates: Nov 22, 2024

Title 30 - Mineral Resources last revised: Nov 19, 2024
All TitlesTitle 30Chapter IPart 75Subpart FAppendix Appendix A - 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
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Appendix Appendix A - 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

Motor-Driven Mine Equipment

Approval No. Date
Air Compressors
128March 21, 1927.
128AJuly 16, 1926.
Coal Drills and Drilling Machines
Hand Drills
109September 19, 1922.
154August 1, 1928.
184February 7, 1930.
227July 29, 1931.
254July 15, 1933.
Post Drills
119April 15, 1925.
119A Do.
225July 10, 1931.
225A Do.
228August 12, 1931.
228AFebruary 17, 1932.
230August 20, 1931.
230A Do.
237December 1, 1931.
237A Do.
Drilling Machines
147February 8, 1928.
147A Do.
176September 9, 1929.
176A Do.
Loading and Conveying Equipment
loading machines
Unmounted Type
122January 8, 1926.
122A Do.
Caterpillar-Mounted Type
150May 11, 1928.
186March 15, 1930.
222May 8, 1931.
222AJuly 28, 1931.
229August 17, 1931.
229A Do.
235November 27, 1931.
235AOctober 29, 1931.
278January 17, 1935.
278A Do.
283AMarch 12, 1935.
284A Do.
285A Do.
294September 18, 1935.
300AMay 6, 1936.
127July 16, 1926.
127ASeptember 23, 1927.
Track-Mounted Type
194June 6, 1930.
194A Do.
217February 27, 1931.
217A Do.
276January 11, 1935.
277January 17, 1935.
282AMarch 12, 1935.
291AJuly 3, 1935.
Pit-Car Loaders
167March 27, 1929.
167A Do.
175July 26, 1929.
175AJune 24, 1929.
250December 10, 1932.
250A Do.
252AFebruary 20, 1933.
Conveyors
Belt Type
236November 19, 1931.
287AMarch 12, 1935.
296AJanuary 6, 1936.
Chain Type
151May 19, 1928.
209December 2, 1930.
240March 12, 1932.
240A Do.
298AMarch 3, 1936.
Power Units for Conveyors
265February 12, 1934.
265AMarch 19, 1934.
390AMarch 23, 1934.
Shaker Type
247October 21, 1932.
257AAugust 11, 1933.
262ADecember 8, 1933.
271May 20, 1935.
271AOctober 17, 1934.
274ADecember 13, 1934.
286AMarch 12, 1935.
295September 20, 1935.
299AApril 9, 1936.
Scraper-type Loaders
138August 5, 1927.
138A Do.
196September 29, 1930.
196AJuly 26, 1930.
226July 27, 1931.
255July 31, 1933.
256 Do.
Mining Machines, Machinery-Moving Equipment, Miscellaneous Trucks, and Water Spray Supply Units
mining machines
Shortwall Machines
103November 2, 1917.
103A Do.
105February 9, 1922.
105A Do.
106 Do.
106A Do.
107 Do.
107A Do.
108 Do.
108A Do.
111October 16, 1922.
111A Do.
113November 4, 1924.
113A Do.
114February 7, 1925.
114A Do.
115 Do.
115A Do.
153July 31, 1928.
153A Do.
193June 3, 1930.
193A Do.
197July 31, 1930.
197A Do.
198August 1, 1930.
198A Do.
201September 8, 1930.
201A Do.
204October 13, 1930.
204ADecember 13, 1930.
223May 13, 1931.
223A Do.
241March 18, 1932.
241A Do.
258August 15, 1933.
259AAugust 16, 1933.
260AAugust 17, 1933.
273November 30, 1934.
288March 27, 1935.
288A Do.
292September 11, 1935.
292A Do.
293A Do.
Longwall Machines
185February 24, 1930.
185A Do.
218March 10, 1931.
218A Do.
246August 19, 1932.
246A Do.
261September 12, 1933.
Track or caterpillar mounted
112March 13, 1924.
112A Do.
118March 12, 1925.
118A Do.
125April 26, 1926.
125A Do.
172April 30, 1929.
172A Do.
188April 15, 1930.
188A Do.
207November 14, 1930.
207A Do.
216February 12, 1931.
216A Do.
231August 31, 1931.
231A Do.
242April 7, 1932.
244June 18, 1932.
244ASeptember 20, 1932.
253AFebruary 25, 1933.
267June 27, 1934.
268AJuly 25, 1934.
269ASeptember 24, 1934.
280AMarch 4, 1935.
297January 27, 1936.
297A Do.
Mine Pumps
140November 1, 1927.
140A Do.
143 Do.
143A Do.
144 Do.
144A Do.
199August 18, 1930.
199A Do.
208November 29, 1930.
210December 15, 1930.
210A Do.
211December 17, 1930.
211A Do.
213December 29, 1930.
213A Do.
214January 2, 1931.
214A Do.
215 Do.
215A Do.
248October 31, 1932.
248ANovember 23, 1932.
264January 31, 1934.
264A Do.
272October 23, 1934.
272A Do.
Rock-Dusting Machines
130November 5, 1926.
137July 2, 1927.
146January 20, 1928.
146AApril 3, 1928.
180October 30, 1929.
180AJanuary 17, 1930.
206November 12, 1930.
279February 14, 1935.
Room and Car-Spotting Hoists
116February 13, 1925.
116A Do.
164January 21, 1931.
164A Do.
165 Do.
165A Do.
169April 5, 1929.
169AFebruary 26, 1934.
190April 20, 1930.
251AJanuary 16, 1933.
263January 11, 1934.
266AFebruary 27, 1934.
Storage-Battery Locomotives and Power Trucks
(Approved under Schedules 15, 2C, 2D, and 2E)
Gathering Locomotives
1501October 11, 1921.
1502November 13, 1922.
1503March 24, 1923.
1505April 5, 1924.
1507August 20, 1925.
1508March 21, 1925.
1509September 25, 1925.
1511November 10, 1925.
1512November 11, 1925.
1513February 25, 1926.
1516December 28, 1926.
1517February 10, 1927.
1520May 27, 1929.
1521June 13, 1930.
1522September 12, 1930.
1523December 19, 1930.
1525July 25, 1934.
1526December 20, 1935.
Tandem Locomotive
1518November 21, 1927.
Power Trucks
1506May 5, 1924.
1505AJune 21, 1926.
1510CDecember 31, 1926.
1514December 18, 1926.
1515December 28, 1926.
1512CSeptember 13, 1928.
1519CApril 6, 1929.
1524CJune 25, 1934.
Junction, Distribution, and Splice Boxes
(Approved under Schedules 2D and 2E)
Junction Boxes
400June 16, 1928.
400AAugust 5, 1925.
401May 11, 1927.
401A Do.
402 Do.
402A Do.
403April 14, 1931.
403A Do.
405ADecember 4, 1933.
authority: 30 U.S.C. 811,813,957
source: 35 FR 17890, Nov. 20, 1970, unless otherwise noted.
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