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(Sec. 1, 20 Stat. 394; 43 U.S.C. 31) (Regs., Feb. 20, 1913, 41 L.D. 528]
201.3 Review of classification. Review of classification may be had only on application therefor to the Secretary, accompanied by a clear and specific statement of conditions not existing or not known to exist at the time of examination. (Sec. 1, 20 Stat. 394; 43 U.S.C. 31) [Regs., Feb. 20, 1913, 41 L.D. 528]
PART 211-COAL-MINING OPERATING AND SAFETY
Sec. 211.1 211.2
in conflict with State Orderly and efficient develop
laws; appeal, delay in ment of publicly owned coal
execution of order
or lands and deposits.
Duties and obligations of lessee (a) Mining supervisor.
211.5 Observance of lease terms; (b) District mining supervisor.
lessee's liability for damage. (c) Deputy mining supervisor.
211.6 (d) Lessee.
Records to be kept by lessee. (e) Leased land or tract.
(a) Production reports and
(b) Financial statement by ac
211.7 Danger in mines to be reported. (j) Shaft.
211.8 Accidents to be reported to min(k) Panel.
ing supervisor. (1) Working place.
Personnel and their duties (m) Rock dusting.
211.9 Certification by State or district (n) Wet coal dust.
mining supervisor required. (0) Gas.
(a) Personnel to be qualified. (p) Gassy mine.
(b) Mine official substitutes. (q) Black damp.
211.10 Mine foremen. (r) Permissible.
(a) Mine foreman for more (s) Fan.
under(t) Booster fan.
ground. (u) Auxiliary fan.
(b) Superintendent may serve Supervisor, district supervisor,
as foreman when less than and deputy supervisor ; powers
25 men underground. and duties.
(c) Assistant foreman for each (a) Inspectional supervision.
75 men underground. (b) Ascertain and report dam
211.11 Fire bosses or mine examiners. age to coal deposits; re
(a) Duties. port wastage of coal;
(b) Examinations during shift. make recommendations to the Secretary.
(c) Fire boss for every 75 men (c) Production and royalty re
employed in gassy mines.
211.12 Additional duties of fire bosses. ports; sealing of mines. (d) Wells or prospect holes
(a) Dangerous places to be through coal beds.
fenced and marked. (e) Abandonment of mine or
(b) Fire boss reports; records of unmined portions of
copied and signed. mine; survey at lessee's
(c) Mine foreman may serve as
(a) Qualifications. ance with regulations not
(b) Physical examination.
* Instructions. Feb. 16, 1915 (43 L.D. 520).
Provisions for disposal of waste 211.15 Requirements.
211.24 Requirements. (a) Posting records.
(a) Slack and refuse to be so (b) Weighman to make affida
disposed of as not to be a nuivit for faithful discharge of
(b) Separately storing slack (c) Bone or other impurities
and waste. may be deducted.
(c) Royalty on slack coal. (d) Allowance for waste ma
Surveys and maps terial.
211.25 Mine-office maps. (e) Basis of royalty computa
(a) Surveys to be made and tion.
maps extended every
6 (f) Penalty for light-weighing
months; surveys to be made coal.
before abandoning any section Geologic and bore-hole reports
of a mine. 211.16 Requirements for reports and
(b) Map legend. completion of drilling.
(c) Surface buildings and bore (a) Projected plans.
holes to be shown on mine (b) Bore holes to be cemented
map. and filled.
(d) Coal sections, stoppings, Approaching oil, gas, or water
ventilation, etc., to be shown wells
on map 211.17 Precautions.
(e) Profiles of steeply dipping
beds; vertical view of workSurface structures; their loca
ings in bed dipping more than tion, construction, and fire pro
(f) Blueprints to be furnished 211.18 Building of combustible mate
annually, or semiannually on rial within 75 feet of mine
request. opening prohibited.
211.26 Maps made when lessee fails to (a) Headframe construction
furnish them. and fire doors.
(a) Liability of lessee for ex(b) Flammable material at
pense of survey.
(b) Incorrect maps.
Mining by stripping
211.27 Requirements and prohibitions Development plans
(a) Drainage of stripping op211.19 To be approved in advance of
(b) Fire prevention. 211.20 To be followed.
(c) Overhanging banks. Mining where more than one
(d) Coal face to be covered in bed of coal occurs
strip pits. 211.21 Requirements.
(e) Underground workings (a) Coal pillars in lower beds
from strip pits prohibited. are to be left until coal in
Manways and exits upper beds is extracted.
211.28 Construction requirements. (b) Pillars to be arranged ver
(a) Escapeways to surface and tically under or over pillars in
distance between at surface. another bed.
(b) Surface exit. Developing through adjoining
(c) Steps or stairways in mines
slopes. 211.22 Development on leased tract. 211.29 Shafts when escape by other (a) Mine not on public domain
means unavailable. to conform to regulations.
(a) Hoist or ladder in shafts. (b) Connections between mines.
(b) Stairway construction in (c) Inspection of adjacent
(c) Hoists in both shafts if 211.23 Connecting mine subject to reg
more than 300 feet deep; ladulations; sealing.
Sec. 211.30 Passageways at shaft landings.
Signals and telephones 211.31 Support of roof and sides of 211.45 Signal code. traveling roads.
211.46 Two methods of signaling re211.32 Fireproof shafts.
quired. 211.33 Fireproof passageways adja
(a) Arrangement of signals. cent to shafts.
(b) Signal circuits not more 211.34 Manways not used for haulage
than 30 volts. to be provided.
211.47 Telephone system. Hoists, hoisting equipment, and
(a) Telephones from surface to shaft landings
and into mines.
(b) Telephone wires on side of 211.35 Hoists.
entry opposite power lines.
Pillars and crosscuts
211.48 Method of construction.
(a) Pillar thickness between (c) Hoist brakes.
intake and return airways. 211.36 Hoisting cables.
(b) Crosscut or break-through (a) Safety factor of hoisting
(c) Face not to be advanced (b) Broken wires on hoisting
more than 30 feet beyond cables.
crosscut. (c) Attachment of hoisting
(d) Room neck minimum width cable to cage.
and length. (a) Fastening of hoisting cable
(e) Chain pillars and stumps. drum or reel.
(f) Crosscuts to be made at
face of rooms and entries be211.37 Hoistway clearance; overwind
fore abandonment. ing and overspeeding prevent
211.49 Advance workings. ers or detaching hooks.
(a) Limits for removing coal. 211.38 Cages for hoisting men.
(b) Size of pillars. (a) Bonnets, gates, and hand
(c) Basis for computing perholds on cages used for hoist
centage of tract mined. ing men.
211.50 Pillars left for support. (b) Safety catches on cages.
(a) Shaft entry and slope pil(c) Cage rests or chairs.
lars. 211.39 Landings.
(b) Shaft pillar size. (a) Landing gates.
(c) Openings in shaft and (b) Derail for shaft or slope
slope pillars. landing.
211.51 Barrier pillars. 211.40 Shaft and sump guards.
(a) Mining restrictions. 211.41 Shaft sinking, safety hooks,
(b) Lessee may be required to crossheads, and safety doors.
mine barrier pillars on adja211.42 Lights at top and underground
cent lands. landings; painted landings.
(c) If coal-mining rights in ad211.43 Operation of hoists.
privately (a) Brakes and indicators re
(a) Mining isolated blocks of (b) Hoistman not to converse
coal not on leased lands. while engine in operation;
Ventilating fans and air distrirate of speed; dead stop at
211.52 Installation specifications. (c) Operation of hoist after
(a) Fans. stoppage.
(b) Explosion-relief doors. (d) No hoisting while repairs
(c) Fans to be reversible being made.
quickly. 211.44 Examinations and reports on
(d) Auxiliary power for fans. mechanical equipment.
(e) Fan pressure recording in. (a) Inspection of hoisting and
strument mechanical equipment.
(f) Temporary fan. (b) Boiler inspection.
(g) Fan at adjoining mine. (c) Defective equipment to be
(h) Stoppage of fan in gassy remedied.
Sec. 211.53 Written permission for use of
(c) Warning signs and insulabooster and auxiliary fans.
(a) Permissible machines re211.54 Recirculation of air.
quired. 211.55 Ventilating current required per
(b) Tests required where elecman; number of men on one
tric machines are used. split of air current.
211.72 Electric-lighting circuits on in211.56 Air measurement records.
take only. 211.57 Quality of air.
211.73 Safety switches. 211.58 Gassy mines.
(a) Interlocking safety (a) When a mine declared to
switches. be gassy may be declared to
(b) Cut-out switches at inbe nongassy.
tervals in all circuits. (b) Open lights not permitted
(c) Electric current to be cut in gassy mines.
off from unused parts of 211.59 Measures of caution required.
mines. (a) Electric current to be cut
Internal-combustion engines off if more than 2 per cent 211.74 Engines, pumps, and other magas present.
chines. (b) Moving bodies of gas. 211.60 Entrance to gassy mine to be
211.75 Lights on locomotives and cars. 211.61 Ventilation more than 4,000 211.76 Locomotives in gassy mines. feet from openings.
211.77 Shelter holes. 211.62 Air current control.
(a) Along haulage roads. (a) Stoppings.
(b) On main haulageway. (b) Overcasts and undercasts.
211.78 Safety requirements for traus(c) Ventilation doors.
porting men. (d) Line brattices.
(a) Safety catches or a safety
man car on slopes. Approaching abandoned work
(b) Derails and stopping ings and sealing abandoned
(c) Frogs ; switch points; guard 211.63 Drill holes in advance where
rails. approaching abandoned work
Storage, transportation, disings.
tribution, and use of explo211.64 Sealing abandoned areas by
sives fireproof stoppings.
211.79 Storage of explosives. Electrical equipment, its in
(a) Explosives magazines. stallation and maintenance
(b) Magazine location. 211.65 Voltage.
(c) Explosives magazines not (a) Low voltage.
to be connected with mine (b) Medium voltage.
workings. (c) High voltage.
(d) Storage of explosives and 211.66 High voltage; use underground.
detonators. (a) Limitation.
(e) Thawing of explosives. (b) Installations.
211.80 Temporary storage of explo211.67 Voltage of trolley lines, under
sives underground. cutting machinery, and pumps 211.81 Explosives in possession of limited to low voltage.
miners. 211.68 Electric wires and cable instal- 211.82 Powder boxes. lations.
(a) Explosives to be kept in (a) Guards for overhead me
tight wooden box.
(b) Powder-box location.
(b) Storage. 211.69 Rail bonds.
211.84 Issuance and distribution of ex211.70 Electric safety precautions.
plosives. (a) Underground electric sta- 211.85 Transportation of explosives in tions.
bulk. (b) Insulated platforms and 211.86 Permissible explosives; requiregrounding
ments. Page 6
Sec. (a) Required in gassy mines.
(b) When water barrels not (b) Shots to be fired only after
required. examination for gas.
Check numbers for employees 211.87 Nonpermissible explosives may 211.97 Requirements. be used in nongassy mine un
(a) Checking of employees. der certain conditions. 211.88 Depth of drill holes.
(b) Check serial numbers for
Government coal. 211.89 Drill holes to be stemmed with noncombustible material.
Safety guards, timber, and sup211.90 Preparation of explosives.
211.98 Safety guards.
filled in, or fenced.
211.100 Timber supply. sions. 211.91 Rock-dusting or wetting coal
First aid equipment and safety
211.102 First-aid and refuge chamber
underground. (c) Water on cutter bar.
211.103 First-aid training. (d) Rock-dusting and sprin
(a) Required of mine officials. kling; rock-dust application.
(b) Safety committee shall be (e) Rock dust to pass 200
Mine rescue apparatus
(a) When more than 50 men 211.92 Requirements.
are employed underground.
(b) Where more than 100 men
are employed underground.
(a) Joint rescue station.
(b) Gas masks. 211.93 Hay, straw, etc.
211.106 Mine rescue teams formed and
Health, sanitation, and wel-
fare 211.94 Oil.
211.107 Bath and change house require(a) Lubricating oil stored in
211.108 Dwellings for employees. (b) Fire-prevention precau
(a) To be kept in sanitary contions.
dition. 211.95 Water supply for fighting fires
(b) Toilets. in mines; more than five men
(c) Water supply contaminaemployed underground.
tion; protection against.
211.109 Ambulance service. 211.96 Water supply for fighting fires in mines.
211.110 Contagious and occupational
Administration of regulations
United States Bureau of Mines: See Chapter I.
Lands: Interior, 43 CFR Part 70.
eral from lands conveyed to the United States under the Acts of March 1,
1911 and March 20, 1922: See Parks and Forests, 36 CFR 251.15, 251.16. Homesteads on coal, oil, and gas lands, Alaska : See Public Lands: Interior, 43
CFR Part 66.