reglab/statecodes huggingface dataset:
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4000 - Definitions

Current through July 13, 2024
The following definitions apply in this subpart.
Combustible liquids. Liquids having a flash point at or
					 above 100 oF (37.8 oC). They are divided into the following classes:
Class II liquids-those having flash points at or above 100
					 oF (37.8 oC) and below 140 oF (60 oC).
Class IIIA liquids-those having flash points at or above
					 140 oF (60 oC) and below 200 oF (93.4 oC).
Class IIIB liquids-those having flash points at or above
					 200 oF (93.4 oC).
Combustible material. A material that, in the form in which
					 it is used and under the conditions anticipated, will ignite, burn, support
					 combustion, or release flammable vapors when subjected to fire or heat. Wood,
					 paper, rubber, and plastics are examples of combustible materials.
Fire resistance rating. The time, in minutes or hours, that
					 an assembly of materials will retain its protective characteristics or
					 structural integrity upon exposure to fire.
Flammable gas. A gas that will burn in the normal
					 concentrations of oxygen in the air.
Flammable liquid. A liquid that has a flash point below 100
					 oF (37.8 oC), a vapor pressure not exceeding 40 pounds per square inch
					 (absolute) at 100 oF (37.8 oC), and is known as a Class I liquid.
Flash point. The minimum temperature at which sufficient
					 vapor is released by a liquid to form a flammable vapor-air mixture near the
					 surface of the liquid.
Multipurpose dry-chemical fire extinguisher. An
					 extinguisher having a rating of at least 2-A:10-B:C and containing a nominal
					 4.5 pounds or more of dry-chemical agent.
Noncombustible material. A material that, in the form in
					 which it is used and under the conditions anticipated, will not ignite, burn,
					 support combustion, or release flammable vapors when subjected to fire or heat.
					 Concrete, masonry block, brick, and steel are examples of noncombustible
					 materials.
Safety can. A container of not over five gallons capacity
					 that is designed to safely relieve internal pressure when exposed to heat and
					 has a spring-closing lid and spout cover.
Storage tank. A container exceeding 60 gallons in capacity
					 used for the storage of flammable or combustible liquids.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4011 - Abandoned electric circuits

Current through July 13, 2024
Abandoned electric circuits shall be deenergized and
					 isolated so that they cannot become energized inadvertently.
Prohibitions/Precautions/Housekeeping
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4100 - Smoking and use of open flames

Current through July 13, 2024
No person shall smoke or use an open flame where flammable
					 or combustible liquids, including greases, or flammable gases are-
(a) Used or transported in a manner that
				  could create a fire hazard; or
(b)
				  Stored or handled.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4102 - Spillage and leakage

Current through July 13, 2024
Flammable or combustible liquid spillage or leakage shall
					 be removed in a timely manner or controlled to prevent a fire
					 hazard.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4103 - Fueling internal combustion engines

Current through July 13, 2024
Internal combustion engines shall be switched off before
					 refueling if the fuel tanks are integral parts of the equipment. This standard
					 does not apply to diesel-powered equipment.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4104 - Combustible waste

Current through July 13, 2024
(a) Waste
				  materials, including liquids, shall not accumulate in quantities that could
				  create a fire hazard.
(b) Until
				  disposed of properly, waste or rags containing flammable or combustible liquids
				  that could create a fire hazard shall be placed in covered metal containers or
				  other equivalent containers with flame containment characteristics.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4130 - Electric substations and liquid storage facilities

Current through July 13, 2024
(a) If a hazard to persons could be created,
				  no combustible materials shall be stored or allowed to accumulate within 25
				  feet of the following:
(1) Electric
				  substations.
(2) Unburied,
				  flammable or combustible liquid storage tanks.
(3) Any group of containers used for storage
				  of more than 60 gallons of flammable or combustible liquids.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4200 - General requirements

Current through July 13, 2024
(a) For fighting
				  fires that could endanger persons, each mine shall have-
(1) Onsite firefighting equipment for
				  fighting fires in their early stages; and
(2) Onsite firefighting equipment for
				  fighting fires beyond their early stages, or the mine shall have made prior
				  arrangements with a local fire department to fight such fires.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4201 - Inspection

Current through July 13, 2024
(a) Firefighting equipment shall be inspected
				  according to the following schedules:
(1)
				  Fire extinguishers shall be inspected visually at least once a month to
				  determine that they are fully charged and operable.
(2) At least once every twelve months,
				  maintenance checks shall be made of mechanical parts, the amount and condition
				  of extinguishing agent and expellant, and the condition of the hose, nozzle,
				  and vessel to determine that the fire extinguishers will operate
				  effectively.
(3) Fire extinguishers
				  shall be hydrostatically tested according to Table C-1 or a schedule based on
				  the manufacturer's specifications to determine the integrity of extinguishing
				  agent vessels.
(4) Water pipes,
				  valves, outlets, hydrants, and hoses that are part of the mine's firefighting
				  system shall be visually inspected at least once every three months for damage
				  or deterioration and use-tested at least once every twelve months to determine
				  that they remain functional.
(5)
				  Fire suppression systems shall be inspected at least once every twelve months.
				  An inspection schedule based on the manufacturer's specifications or the
				  equivalent shall be established for individual components of a system and
				  followed to determine that the system remains functional. Surface fire
				  suppression systems are exempt from these inspection requirements if the
				  systems are used solely for the protection of property and no persons would be
				  affected by a fire.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4202 - Fire hydrants

Current through July 13, 2024
If fire hydrants are part of the mine's firefighting
					 system, the hydrants shall be provided with-
(a) Uniform fittings or readily available
				  adapters for onsite firefighting equipment;
(b) Readily available wrenches or keys to
				  open the valves; and
(c) Readily
				  available adapters capable of connecting hydrant fittings to the hose equipment
				  of any firefighting organization relied upon by the mine.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4203 - Extinguisher recharging or replacement

Current through July 13, 2024
Fire extinguishers shall be recharged or replaced with a
					 fully charged extinguisher promptly after any discharge.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4230 - Self-propelled equipment

Current through July 13, 2024
(a)
(1) Whenever a fire or its effects could
				  impede escape from self-propelled equipment, a fire extinguisher shall be on
				  the equipment.
(2) Whenever a fire
				  or its effects would not impede escape from the equipment but could affect the
				  escape of other persons in the area, a fire extinguisher shall be on the
				  equipment or within 100 feet of the equipment.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4330 - Firefighting, evacuation, and rescue procedures

Current through July 13, 2024
(a) Mine
				  operators shall establish emergency firefighting, evacuation, and rescue
				  procedures. These procedures shall be coordinated in advance with available
				  firefighting organizations.
(b)
				  Fire alarm procedures or systems shall be established to promptly warn every
				  person who could be endangered by a fire.
(c) Fire alarm systems shall be maintained in
				  operable condition.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4331 - Firefighting drills

Current through July 13, 2024
Emergency firefighting drills shall be held at least once
					 every six months for persons assigned firefighting responsibilities by the mine
					 operator.
Flammable and Combustible Liquids and
					 Gases
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4400 - Use restrictions

Current through July 13, 2024
(a) Flammable
				  liquids shall not be used for cleaning.
(b) Solvents shall not be used near an open
				  flame or other ignition source, near any source of heat, or in an atmosphere
				  that can elevate the temperature of the solvent above the flash
				  point.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4401 - Storage tank foundations

Current through July 13, 2024
Fixed, unburied, flammable or combustible liquid storage
					 tanks shall be securely mounted on firm foundations. Piping shall be provided
					 with flexible connections or other special fittings where necessary to prevent
					 leaks caused by tanks settling.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4402 - Safety can use

Current through July 13, 2024
Small quantities of flammable liquids drawn from storage
					 shall be kept in safety cans labeled to indicate the
					 contents.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4430 - Storage facilities

Current through July 13, 2024
(a) Storage tanks
				  for flammable or combustible liquids shall be-
(1) Capable of withstanding working pressures
				  and stresses and compatible with the type of liquid stored;
(2) Maintained in a manner that prevents
				  leakage;
(3) Isolated or separated
				  from ignition sources to prevent fire or explosion; and
(4) Vented or otherwise constructed to
				  prevent development of pressure or vacuum as a result of filling, emptying, or
				  atmospheric temperature changes. Vents for storage of Class I, II, or IIIA
				  liquids shall be isolated or separated from ignition sources. These pressure
				  relief requirements do not apply to tanks used for storage of Class IIIB
				  liquids that are larger than 12,000 gallons in capacity.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4500 - Heat sources

Current through July 13, 2024
Heat sources capable of producing combustion shall be
					 separated from combustible materials if a fire hazard could be
					 created.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4501 - Fuel lines

Current through July 13, 2024
Fuel lines shall be equipped with valves capable of
					 stopping the flow of fuel at the source and shall be located and maintained to
					 minimize fire hazards. This standard does not apply to fuel lines on
					 self-propelled equipment.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4502 - Battery-charging stations

Current through July 13, 2024
(a)
				  Battery-charging stations shall be ventilated with a sufficient volume of air
				  to prevent the accumulation of hydrogen gas.
(b) Smoking, use of open flames, or other
				  activities that could create an ignition source shall be prohibited at the
				  battery charging station during battery charging.
(c) Readily visible signs prohibiting smoking
				  or open flames shall be posted at battery-charging stations during battery
				  charging.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4503 - Conveyor belt slippage

Current through July 13, 2024
Belt conveyors within confined areas where evacuation would
					 be restricted in the event of a fire resulting from belt-slippage shall be
					 equipped with a detection system capable of automatically stopping the drive
					 pulley. A person shall attend the belt at the drive pulley when it is necessary
					 to operate the conveyor while temporarily bypassing the automatic
					 function.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4530 - Exits

Current through July 13, 2024
Buildings or structures in which persons work shall have a
					 sufficient number of exits to permit prompt escape in case of
					 fire.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4531 - Flammable or combustible liquid storage buildings or rooms

Current through July 13, 2024
(a) Storage buildings or storage rooms in
				  which flammable or combustible liquids, including grease, are stored and that
				  are within 100 feet of any person's work station shall be ventilated with a
				  sufficient volume of air to prevent the accumulation of flammable
				  vapors.
(b) In addition, the
				  buildings or rooms shall be-
(1) Constructed
				  to meet a fire resistance rating of at least one hour; or
(2) Equipped with an automatic fire
				  suppression system; or
(3) Equipped
				  with an early warning fire detection device that will alert any person who
				  could be endangered by a fire, provided that no person's work station is in the
				  building.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4600 - Extinguishing equipment

Current through July 13, 2024
(a) When welding,
				  cutting, soldering, thawing, or bending-
(1)
				  With an electric arc or with an open flame where an electrically conductive
				  extinguishing agent could create an electrical hazard, a multipurpose
				  dry-chemical fire extinguisher or other extinguisher with at least a 2-A:10-B:C
				  rating shall be at the worksite.
(2) With an open flame in an area where no
				  electrical hazard exists, a multipurpose dry-chemical fire extinguisher or
				  equivalent fire extinguishing equipment for the class of fire hazard present
				  shall be at the worksite.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4601 - Oxygen cylinder storage

Current through July 13, 2024
Oxygen cylinders shall not be stored in rooms or areas used
					 or designated for storage of flammable or combustible liquids, including
					 grease.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4602 - Gauges and regulators

Current through July 13, 2024
Gauges and regulators used with oxygen or acetylene
					 cylinders shall be kept clean and free of oil and grease.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4603 - Closure of valves

Current through July 13, 2024
To prevent accidental release of gases from hoses and
					 torches attached to oxygen and acetylene cylinders or to manifold systems,
					 cylinder or manifold system valves shall be closed when-
(a) The cylinders are moved;
(b) The torch and hoses are left unattended;
				  or
(c) The task or series of tasks
				  is completed.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Section 56.4604 - Preparation of pipelines or containers

Current through July 13, 2024
Before welding, cutting, or applying heat with an open
					 flame to pipelines or containers that have contained flammable or combustible
					 liquids, flammable gases, or explosive solids, the pipelines or containers
					 shall be-
(a) Drained, ventilated, and
				  thoroughly cleaned of any residue;
(b) Vented to prevent pressure build-up
				  during the application of heat; and
(c)
(1)
				  Filled with an inert gas or water, where compatible; or
(2) Determined to be free of flammable gases
				  by a flammable gas detection device prior to and at frequent intervals during
				  the application of heat.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart C - Fire Prevention and Control › Appendix I TO SUBPART C - NATIONAL CONSENSUS STANDARDS

Current through July 13, 2024
Mine operators seeking further information in the area of
					 fire prevention and control may consult the following national consensus
					 standards.
MSHA standard
National consensus standard
SS 56.4200, 56.4201
NFPA No. 10-Portable Fire Extinguisher.
NFPA No. 11-Low Expansion Foam and Combined Agent
								Systems.
NFPA No. 11A-High Expansion Foam Systems.
NFPA No. 12-Carbon Dioxide Extinguishing
								Systems.
NFPA No. 12A-Halon 1301 Extinguishing
								Systems.
NFPA No. 13-Water Sprinkler Systems.
NFPA No. 14-Standpipe and Hose Systems. NFPA No.
								15-Water Spray Fixed Systems.
NFPA No. 16-Foam Water Spray Systems.
NFPA No. 17-Dry-Chemical Extinguishing
								Systems.
NFPA No. 121-Mobile Surface Mining
								Equipment.
NFPA No. 291-Testing and Marketing
								Hydrants.
NFPA No. 1962-Care, Use, and Maintenance of Fire
								Hose, Connections, and Nozzles.
S 56.4202
NFPA No. 14-Standpipe and Hose Systems. NFPA No.
								291-Testing and Marketing Hydrants.
S 56.4203
NFPA No. 10-Portable Fire Extinguishers.
S 56.4230
NFPA No. 10-Portable Fire Extinguishers.
NFPA No. 121-Mobile Surface Mining
								Equipment.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart D - Air Quality and Physical Agents › Section 56.5001 - Exposure limits for airborne contaminants

Current through July 13, 2024
Air Quality
Except as permitted by S 56.5005-
(a) Except as provided in paragraph (b) of
				  this section, the exposure to airborne contaminants shall not exceed, on the
				  basis of a time weighted average, the threshold limit values adopted by the
				  American Conference of Governmental Industrial Hygienists, as set forth and
				  explained in the 1973 edition of the Conference's publication, entitled "TLV's
				  Threshold Limit Values for Chemical Substances in Workroom Air Adopted by ACGIH
				  for 1973," pages 1 through 54, which are hereby incorporated by reference and
				  made a part hereof. This publication may be obtained from the American
				  Conference of Governmental industrial Hygienists by writing to the
				  Secretary-Treasurer, P.O Box 1937, Cincinnati, Ohio 45201, or may be examined
				  in any Metal and Nonmetal Mine Safety and Health District or Subdistrict Office
				  of the Mine Safety and Health Administration. Excursions above the listed
				  thresholds shall not be of a greater magnitude than is characterized as
				  permissible by the Conference.
(b)The 8-hour time weighted average airborne
				  concentration of asbestos dust to which employees are exposed shall not exceed
				  2 fibers per milliliter greater than 5 microns in length, as determined by the
				  membrane filter method at 400-450 magnification (4 millimeter objective) phase
				  contrast illumination. No employees shall be exposed at any time to airborne
				  concentrations of asbestos fibers in excess of 10 fibers longer than 5
				  micrometers, per milliliter of air, as determined by the membrane filter method
				  over a minimum sampling time of 15 minutes. "Asbestos" is a generic term for a
				  number of hydrated silicates that, when crushed or processed, separate into
				  flexible fibers made up of fibrils. Although there are many asbestos minerals,
				  the term "asbestos" as used herein is limited to the following minerals:
				  chrysotile, amosite, crocidolite, anthophylite asbestos, tremolite asbestos,
				  and actinolite asbestos.
(c)Employees shall be withdrawn from areas
				  where there is present an airborne contaminant given a "C" designation by the
				  Conference and the concentration exceeds the threshold limit value listed for
				  that contaminant.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart D - Air Quality and Physical Agents › Section 56.5002 - Exposure monitoring

Current through July 13, 2024
Dust, gas, mist, and fume surveys shall be conducted as
					 frequently as necessary to determine the adequacy of control
					 measures.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart D - Air Quality and Physical Agents › Section 56.5005 - Control of exposure to airborne contaminants

Current through July 13, 2024
Control of employee exposure to harmful airborne
					 contaminants shall be, insofar as feasible, by prevention of contamination,
					 removal by exhaust ventilation, or by dilution with uncontaminated air.
					 However, where accepted, engineering control measures have not been developed
					 or when necessary by the nature of work involved (for example, while
					 establishing controls or occasional entry into hazardous atmospheres to perform
					 maintenance or investigation), employees may work for reasonable periods of
					 time in concentrations of airborne contaminants exceeding permissible levels if
					 they are protected by appropriate respiratory protective equipment. Whenever
					 respiratory protective equipment is used a program for selection, maintenance,
					 training, fitting, supervision, cleaning, and use shall meet the following
					 minimum requirements:
(a) Mine Safety
				  and Health Administration approved respirators which are applicable and
				  suitable for the purpose intended shall be furnished, and employees shall use
				  the protective equipment in accordance with training and instruction.
(b) A respirator program consistent with the
				  requirements of ANSI Z88.2-1969, published by the American National Standards
				  Institute and entitled "American National Standards Practices for Respiratory
				  Protection ANSI Z88.2-1969," approved August 11, 1969, which is hereby
				  incorporated by reference and made a part hereof. This publication may be
				  obtained from the American National Standards Institute, Inc., 1430 Broadway,
				  New York, New York 10018, or may be examined in any Metal and Nonmetal Mine
				  Safety and Health District or Subdistrict Office of the Mine Safety and Health
				  Administration.
(c) When
				  respiratory protection is used in atmospheres immediately harmful to life, the
				  presence of at least one other person with backup equipment and rescue
				  capability shall be required in the event of failure of the respiratory
				  equipment.
Approved by the Office of Management and Budget under
						control number 1219-0048
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart D - Air Quality and Physical Agents › Section 56.5006 - Restricted use of chemicals

Current through July 13, 2024
The following chemical substances shall not be used or
					 stored except by competent persons under laboratory conditions approved by a
					 nationally recognized agency acceptable to the Secretary.
(a) Carbon tetrachloride.
(b) Phenol,
(c) 4-Nitrobiphenyl,
(d) Alpha-naphthylamine,
(e) 4,4-Methylene Bis
				  (2-chloroaniline),
(f)
				  Methyl-chloromethyl ether,
(g) 3,3
				  Dichlorobenzidine,
(h) Bis
				  (chloromethyl) ether,
(i)
				  Beta-napthylamine,
(j)
				  Benzidine,
(k)
				  4-Aminodiphenyl,
(l)
				  Ethyleneimine,
(m)
				  Beta-propiolactone,
(n)
				  2-Acetylaminofluorene,
(o)
				  4-Dimethylaminobenzene, and
(p)
				  N-Nitrosodimethylamine.
Physical Agents
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart D - Air Quality and Physical Agents › Section 56.5050 - Exposure limits for noise

Current through July 13, 2024
(a) No employee
				  shall be permitted an exposure to noise in excess of that specified in the
				  table below. Noise level measurements shall be made using a sound level meter
				  meeting specifications for type 2 meters contained in American National
				  Standards Institute (ANSI) Standard S1.4-1971, "General Purpose Sound Level
				  Meters," approved April 27, 1971, which is hereby incorporated by reference and
				  made a part hereof, or by a dosimeter with similar accuracy. This publication
				  may be obtained from the American National Standards Institute, Inc. 1430
				  Broadway, New York, New York 10018, or may be examined in any Metal and
				  Nonmetal Mine Safety and Health District or Subdistrict Office of the Mine
				  Safety and Health Administration.
PERMISSIBLE NOISE EXPOSURES
Duration per day, hours of exposure
Sound level dBA, slow response
8
90
6
92
4
95
3
97
2
100
1 1/2
102
1
105
1/2
110
1/4 or less
115
No exposure shall exceed 115 dBA. Impact or impulsive
					 noises shall not exceed 140 dB, peak sound pressure level.
Note: When the daily noise exposure is composed of two or
					 more periods of noise exposure at different levels, their combined effect shall
					 be considered rather than the individual effect on each.
If the sum
(C1/T1)+(C2/T2)+ . . . (Cn/Tn)
exceeds unity, then the mixed exposure shall be considered
					 to exceed the permissible exposure. Cn indicates the total time of exposure at
					 a specified noise level, and Tn indicates the total time of exposure permitted
					 at that level. Interpolation between tabulated values may be determined by the
					 following formula:
Log T = 6.322-0.0602 SL
Where T is the time in hours and SL is the sound level in
					 dBA.
(b) When employees'
				  exposure exceeds that listed in the above table, feasible administrative or
				  engineering controls shall be utilized. If such controls fail to reduce
				  exposure to within permissible levels, personal protection equipment shall be
				  provided and used to reduce sound levels to within the levels of the
				  table.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6100 - Separation of stored explosive material

Current through July 13, 2024
(a) Detonators
				  shall not be stored in the same magazine with other explosive
				  material.
(b) When stored in the
				  same magazine, blasting agents shall be separated from explosives, safety fuse,
				  and detonating cord to prevent contamination.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6101 - Areas around explosive material storage facilities

Current through July 13, 2024
(a) Areas
				  surrounding storage facilities for explosive material shall be clear of
				  rubbish, brush, dry grass, and trees for 25 feet in all directions, except that
				  live trees 10 feet or taller need not be removed.
(b) Other combustibles shall not be stored or
				  allowed to accumulate within 50 feet of explosive material. Combustible liquids
				  shall be stored in a manner that ensures drainage will occur away from the
				  explosive material storage facility in case of tank rupture.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6102 - Explosive material storage practices

Current through July 13, 2024
(a) Explosive
				  material shall be-
(1) Stored in a manner to
				  facilitate use of oldest stocks first;
(2) Stored according to brand and grade in
				  such a manner as to facilitate identification; and
(3) Stacked in a stable manner but not more
				  than 8 feet high.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6130 - Explosive material storage facilities

Current through July 13, 2024
(a) Detonators and
				  explosives shall be stored in magazines.
(b) Packaged blasting agents shall be stored
				  in a magazine or other facility which is ventilated to prevent dampness and
				  excessive heating, weather-resistant, and locked or attended. Drop trailers do
				  not have to be ventilated if they are currently licensed by the Federal, State,
				  or local authorities for over-the-road use. Facilities other than magazines
				  used to store blasting agents shall contain only blasting agents.
(c) Bulk blasting agents shall be stored in
				  weather-resistant bins or tanks which are locked, attended, or otherwise
				  inaccessible to unauthorized entry.
(d) Facilities, bins or tanks shall be posted
				  with the appropriate United States Department of Transportation placards or
				  other appropriate warning signs that indicate the contents and are visible from
				  each approach.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6131 - Location of explosive material storage facilities

Current through July 13, 2024
(a)
				  Storage facilities for any explosive material shall be-
(1) Located so that the forces generated by a
				  storage facility explosion will not create a hazard to occupants in mine
				  buildings and will not damage dams or electric substations; and
(2) Detached structures located outside the
				  blast area and a sufficient distance from powerlines so that the powerlines, if
				  damaged, would not contact the magazines.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6132 - Magazine requirements

Current through July 13, 2024
(a) Magazines shall
				  be-
(1) Structurally sound;
(2) Noncombustible or the exterior covered
				  with fire-resistant material;
(3)
				  Bullet resistant;
(4) Made of
				  nonsparking material on the inside;
(5) Ventilated to control dampness and
				  excessive heating within the magazine;
(6) Posted with the appropriate United States
				  Department of Transportation placards or other appropriate warning signs that
				  indicate the contents and are visible from each approach, so located that a
				  bullet passing through any of the signs will not strike the magazine;
(7) Kept clean and dry inside;
(8) Unlighted or lighted by devices that are
				  specifically designed for use in magazines and which do not create a fire or
				  explosion hazard;
(9) Unheated or
				  heated only with devices that do not create a fire or explosion
				  hazard;
(10) Locked when
				  unattended; and
(11) Used
				  exclusively for the storage of explosive material except for essential
				  nonsparking equipment used for the operation of the magazine.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6133 - Powder chests

Current through July 13, 2024
(a) Powder chests
				  (day boxes) shall be-
(1) Structurally sound,
				  weather-resistant, equipped with a lid or cover, and with only nonsparking
				  material on the inside;
(2) Posted
				  with the appropriate United States Department of Transportation placards or
				  other appropriate warning signs that indicate the contents and are visible from
				  each approach;
(3) Located out of
				  the blast area once loading has been completed;
(4) Locked or attended when containing
				  explosive material; and
(5) Emptied
				  at the end of each shift with the contents returned to a magazine or other
				  storage facility, or attended.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6200 - Delivery to storage or blast site areas

Current through July 13, 2024
Explosive material shall be transported without undue delay
					 to the storage area or blast site.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6201 - Separation of transported explosive material

Current through July 13, 2024
Detonators shall not be transported on the same vehicle or
					 conveyance with other explosives except as follows:
(a) Detonators in quantities of more than
				  1000 may be transported in a vehicle or conveyance with explosives or blasting
				  agents provided the detonators are-
(1)
				  Maintained in the original packaging as shipped from the manufacturer;
				  and
(2) Separated from the
				  explosives or blasting agents by 4 inches of hardwood, laminated partition, or
				  equivalent. The hardwood, laminated partition, or the equivalent shall be
				  fastened to the vehicle or conveyance.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6202 - Vehicles

Current through July 13, 2024
(a) Vehicles containing explosive material
				  shall be-
(1) Maintained in good condition
				  and shall comply with the requirements of subpart M of this part;
(2) Equipped with sides and enclosures higher
				  than the explosive material being transported or have the explosive material
				  secured to a nonconductive pallet;
(3) Equipped with a cargo space that shall
				  contain the explosive material (passenger areas shall not be considered cargo
				  space);
(4) Equipped with at least
				  two multipurpose dry-chemical fire extinguishers or one such extinguisher and
				  an automatic fire suppression system;
(5) Posted with warning signs that indicate
				  the contents and are visible from each approach;
(6) Occupied only by persons necessary for
				  handling the explosive material;
(7) Attended or the cargo compartment locked,
				  except when parked at the blast site and loading is in progress; and
(8) Secured while parked by having-
(i) The brakes set;
(ii) The wheels chocked if movement could
				  occur; and
(iii) The engine shut
				  off unless powering a device being used in the loading operation.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6203 - Locomotives

Current through July 13, 2024
Explosive material shall not be transported on a
					 locomotive. When explosive material is hauled by trolley locomotive, covered,
					 electrically insulated cars shall be used.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6204 - Hoists

Current through July 13, 2024
(a) Before explosive material is transported
				  in hoist conveyances, the hoist operator shall be notified.
(b) Explosive material transported in hoist
				  conveyances shall be placed within a container which prevents shifting of the
				  cargo that could cause detonation of the container by impact or by sparks. The
				  manufacturer's container may be used if secured to a nonconductive pallet. When
				  explosives are transported, they shall be secured so as not to contact any
				  sparking material.
(c) No explosive
				  material shall be transported during a mantrip.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6205 - Conveying explosives by hand

Current through July 13, 2024
Closed, nonconductive containers shall be used to carry
					 explosives and detonators to and from blast sites. Separate containers shall be
					 used for explosives and detonators.
USE
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6300 - Control of blasting operations

Current through July 13, 2024
(a) Only persons
				  trained and experienced in the handling and used of explosive material shall
				  direct blasting operations and related activities.
(b) Trainees and inexperienced persons shall
				  work only in the immediate presence of persons trained and experienced in the
				  handling and use of explosive material.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6301 - Blasthole obstruction check

Current through July 13, 2024
Before loading, blastholes shall be checked and, wherever
					 possible, cleared of obstructions.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6302 - Explosive material protection

Current through July 13, 2024
(a) Explosives and
				  blasting agents shall be kept separated from detonators until loading
				  begins.
(b) Explosive material
				  shall be protected from impact and temperatures in excess of 150 oF when taken
				  to the blast site.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6303 - Initiation preparation

Current through July 13, 2024
(a) Primers shall
				  be made up only at the time of use and as close to the blast site as conditions
				  allow.
(b) Primers shall be
				  prepared with the detonator contained securely and completely within the
				  explosive or contained securely and appropriately for its design in the tunnel
				  or cap well.
(c) When using
				  detonating cord to initiate another explosive, a connection shall be prepared
				  with the detonating cord threaded through, attached securely to, or otherwise
				  in contact with the explosive.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6304 - Primer protection

Current through July 13, 2024
(a) Tamping shall
				  not be done directly on a primer.
(b) Rigid cartridges of explosives or
				  blasting agents that are 4 inches (100 millimeters) in diameter or larger shall
				  not be dropped on the primer except where the blasthole contains sufficient
				  depth of water to protect the primer from impact. Slit packages of prill, water
				  gel, or emulsions are not considered rigid cartridges and may be drop
				  loaded.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6305 - Unused explosive material

Current through July 13, 2024
Unused explosive material shall be moved to a protected
					 location as soon as practical after loading operations are
					 completed.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6306 - Loading and blasting

Current through July 13, 2024
(a) Vehicles and
				  equipment shall not be driven over explosive material or initiating systems in
				  a manner which could contact the material or system, or create other
				  hazards.
(b) Once loading begins,
				  the only activities permitted within the blast site shall be those activities
				  directly related to the blasting operation and the activities of surveying,
				  stemming, sampling of geology, and reopening of holes provided that reasonable
				  care is exercised. Haulage activity is permitted near the base of the highwall
				  being loaded provided no other haulage access exists.
(c) Loading shall be continuous except where
				  adverse circumstances such as unfavorable atmospheric conditions, large
				  equipment failure, or circumstances beyond the operator's control necessitate
				  an interruption in loading.
(d) In
				  electric blasting prior to connecting to the power source and in nonelectric
				  blasting prior to attaching an initiating device, all persons shall leave the
				  blast area except persons in a blasting shelter or other location that protects
				  them from concussion (shock wave), flying material, and gases.
(e) When loading is completed and circuits
				  are connected, the blasts shall be fired without undue delay unless adverse
				  circumstances such as unfavorable atmospheric conditions, large equipment
				  failure, or circumstances beyond the operator's control necessitate delay. If
				  the time between the connection of circuits and the firing of the blast will
				  exceed 72 hours, the operator shall notify the appropriate MSHA District Office
				  and the State Mine Inspector before the 72 hours have elapsed.
(f) Before firing a blast-
(1) Ample warning shall be given to allow all
				  persons to be evacuated;
(2) Clear
				  exit routes shall be provided for persons firing the round; and
(3) All access routes to the blast area shall
				  be guarded or barricaded to prevent the passage of persons or
				  vehicles.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6307 - Drill stem loading

Current through July 13, 2024
Explosive material shall not be loaded into blastholes with
					 drill stem equipment or other devices that could be extracted while containing
					 explosive material. The use of loading hose, collar sleeves, or collar pipes is
					 permitted.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6309 - Fuel oil requirements for ANFO

Current through July 13, 2024
(a) Liquid
				  hydrocarbon fuels with flash points lower than that of No. 2 diesel oil (125
				  oF) shall not be used to prepare ammonium nitrate-fuel oil, except that diesel
				  fuels with flash points no lower than 100 oF may be used at ambient air
				  temperatures below 45 oF.
(b) Waste
				  oil, including crankcase oil, shall not be used to prepare ammonium
				  nitrate-fuel oil.
Wyoming Administrative Code › Agency 053 - Workforce Services, Department of › Sub-Agency 0004 - Mining Inspector › Chapter 2 - SURFACE METAL/NON METAL MINES › Subpart E - Explosives › Section 56.6310 - Misfire waiting period

Current through July 13, 2024
When a misfire is suspected, persons shall not enter the
					 blast area-
(a) For 30 minutes if
				  safety fuse and blasting caps are used; or
(b) For 15 minutes if any other type
				  detonators are used.