57.18028 Mine emergency and self-rescuer training. Where possible, aerial tramways shall not be started until the operator has ascertained that everyone is in the clear. (5) Fire suppression systems shall be inspected at least once every twelve months. Access to unattended mine openings shall be restricted by gates or doors, or the openings shall be fenced and posted. (a) When persons are exposed to slushing operations, the slushers shall be equipped with rollers and drum covers and anchored securely before slushing operations are started to protect against hazardous movement before slushing operations are started. Any such appeal must be filed in the appropriate circuit of the United States Court of Appeal. If guide ropes are used in shafts for personnel hoisting applications other than shaft development, the nominal strength (manufacturer's published catalog strength) of the guide rope at installation shall meet the minimum value calculated as follows: Minimum value = Static Load 5.0. (b) Inspected daily while operating if persons are underground. [70 FR 32966, June 6, 2005; 70 FR 37901, June 30, 2005; 71 FR 29012, May 18, 2006]. (B) An ignition of methane has not occurred. Potential asbestos fiber concentration shall be determined by phase contrast microscopy (PCM) using the OSHA Reference Method in OSHA's asbestos standard found in 29 CFR 1910.1001, Appendix A, or a method at least equivalent to that method in identifying a potential asbestos exposure exceeding the 0.1 f/cc full-shift limit or the 1 f/cc excursion limit. Scientists take part in drafting laws, government regulations and parliamentary hearings on law enforcement matters. Equipment shall not be operated in atmospheres containing 1.0 percent or more methane. (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: (2) Unburied, flammable or combustible liquid storage tanks. 57.22208 Auxiliary fans (I-A, II-A, III, and V-A mines). 57.19062 Maximum acceleration and deceleration. Explosive material shall not be transported on a locomotive. (a) Manually-operated horns or other audible warning devices provided on self-propelled mobile equipment as a safety device shall be maintained in a functional condition. (3) Stacked in a stable manner but not more than 8 feet high. (a) Methane monitors shall be installed on continuous mining machines used in or beyond the last open crosscut. Only nonsparking tools shall be used to open containers of explosive material or to punch holes in explosive cartridges. The quantity of air coursed through the last open crosscut in pairs or sets of entries, or through other ventilation openings nearest the face, shall be at least 6,000 cubic feet per minute, or 9,000 cubic feet per minute in longwall and continuous miner sections. ROPS shall be installed on the equipment in accordance with the recommendations of the ROPS manufacturer. Parked railcars shall be blocked securely unless held effectively by brakes. (a) Except as provided in paragraph (b), 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. 57.14211 Blocking equipment in a raised position. Supplies, materials, and tools on mantrips. Where necessary, toeboards shall be provided. 57.12084 Branch circuit disconnecting devices. When persons are hoisted in buckets, speeds shall not exceed 500 feet per minute and shall not exceed 200 feet per minute when within 100 feet of the intended station. Movement of independently operating rail equipment. Design feature means either the manufacturer's original design or a design approved by a registered professional engineer. (3) By properly assembled anchor bolts, clamps, or wedges, provided that the attachment is a design feature of the hoist drum. (2) Isolate any combustible material with noncombustible material. For information on the availability of this material at NARA, call 2027416030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. 57.22201 Mechanical ventilation (I-A, I-B, I-C, II-A, II-B, III, IV, V-A, and V-B mines). Representatives of the mine operator, the miners and the appropriate State agency may participate in the investigation. 57.6404 Separation of blasting circuits from power source. Chemical substances, including concentrated acids and alkalies, shall be stored to prevent inadvertent contact with each other or with other substances, where such contact could cause a violent reaction or the liberation of harmful fumes or gases. (e) Except in Subcategory I-C or Category III mines, vehicles used for transportation when examining the mine shall be approved by MSHA under the applicable requirements of 30 CFR parts 18 through 36. Blasting agent means any substance classified as a blasting agent by the Department of Transportation in 49 CFR 173.114(a) (44 FR 31182, May 31, 1979) which is incorporated by reference. 57.19055 Availability of hoist operator for manual hoists. Enhanced content is provided to the user to provide additional context. 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. Drill crews and others shall stay clear of augers or drill stems that are in motion. (6) Lead-in lines shall be manually unreeled if connected to the trunklines at the blast site. (a) If windows are provided on operators' stations of self-propelled mobile equipment, the windows shall be made of safety glass or material with equivalent safety characteristics. No splice, except a vulcanized splice or its equivalent, shall be made in a trailing cable within 25 feet of the machine unless the machine is equipped with a cable reel or other power feed cable payout-retrieval system. (a) Any diesel powered equipment operated at any time in underground areas must meet the following maintenance standards: (1) The operator must maintain any approved engine in approved condition; (2) The operator must maintain the emission related components of any non-approved engine to manufacturer specifications; and. (3) Air supplied by air compressors located on the surface and coursed through metal pipe into the hoist enclosure. 57.22224 Auxiliary equipment stations (I-A and III mines). Under conditions of limited visibility these loads shall have a warning light at the end of the projection. Rock burst does not include a burst resulting from pressurized mine gases. Regulations | Mine Safety and Health Administration (MSHA) 57.22101 Smoking (I-A, II-A, III, and V-A mines). (e) Potable water outlets shall be posted. Regulations Regulations MSHA is responsible for enforcing the Federal Mine Safety and Health Act of 1977 (Mine Act) as amended by the MINER Act of 2006 . ROPS shall have a label permanently affixed to the structure identifying. If methane reaches 0.5 percent in the mine atmosphere, ventilation changes shall be made to reduce the level of methane. 1926.1427 (b) (1) Supplies shall not be stacked or stored in a manner which creates tripping or fall-of-material hazards. (3) Errors detected by the operator shall be corrected on any forms kept by the operator and a corrected copy of any forms submitted to the Mine Safety and Health Administration shall be submitted to the Mine Safety and Health Administration within 60 days of detection and shall identify the errors and indicate the date the corrections are made. [53 FR 32526, Aug. 25, 1988, as amended at 60 FR 35695, July 11, 1995; 71 FR 16667, Apr. Belt dressings shall not be applied manually while belts are in motion unless a pressurized-type applicator is used that allows the dressing to be applied from outside the guards. 57.22233 Actions at 0.5 percent methane (I-C mines). Vents shall be installed so that forces are directed away from persons should an explosion occur. If methane reaches 2.0 percent in the mine atmosphere, all persons other than competent persons necessary to make ventilation changes shall be withdrawn from the mine until methane is reduced to less than 0.5 percent. (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 2A:10B:C rating shall be at the worksite. Subscribe to: Changes in Title 30 :: Chapter I :: Subchapter K :: Part 57. (2) Category II applies to domal salt mines where the history of the mine or geological area indicates the occurrence of or the potential for an outburst. A back-up system shall be provided for a hoist enclosure ventilation system provided by either of the methods set forth in paragraphs (a) (2) and (3) of this section. 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. (iii) Braking is to be performed using only those braking systems, including auxiliary retarders, which are designed to bring the equipment to a stop under normal operating conditions. NFPA No. Authorized persons at major electrical installations. (1) When the operator has an obstructed view to the rear, self-propelled mobile equipment shall have. An application must include the following information: (i) Documentation supporting that controls are technologically or economically infeasible at this time to reduce the miner's exposure to the final DPM limit. Trailing cables shall be attached to machines in a suitable manner to protect the cable from damage and to prevent strain on the electrical connections. 57.22605 Blasting from the surface (V-A mines). (c) Fire extinguishers or fire suppression systems shall be of a type and size that can extinguish fires of any class in their early stages which could originate from the equipment's inherent fire hazards. (10) Significant changes in the ventilation system projected for one year. Timing devices are permitted to avoid nuisance tripping for periods not to exceed 30 seconds, except during blasting or the ventilation time following a blast in a Subcategory II-A mine. A passage, walk, or haulageway regularly used or designated for persons to go from one place to another. (b) Whenever a change is made in escape and evacuation plans and procedures for any area of the mine, all persons affected shall be instructed in the new plans or procedures. If blasting a loaded round may be delayed for more than 72 hours, the operator shall notify the appropriate MSHA district office. Movement of equipment on adjacent tracks. All electric detonators to be fired in a round shall be from the same manufacturer and shall have similar electrical firing characteristics. (2) Equipped with supply and discharge operating controls. (1) All persons other than competent persons necessary to make the ventilation changes shall be withdrawn from affected areas; (2) Electrical power shall be deenergized in affected areas, except power to monitoring equipment determined by MSHA to be intrinsically safe under 30 CFR part 18; and. Fuses shall not be removed or replaced by hand in an energized circuit, and they shall not otherwise be removed or replaced in an energized circuit unless equipment and techniques especially designed to prevent electrical shock are provided and used for such purpose. An explosive mixture of dust containing volatile matter is 0.02 ounce or more per cubic foot of air. 57.12048 Communication conductors on power poles. (d) The plan shall be available to an authorized representative of the Secretary and to miners or their representatives. (2) The torque of the first bolt, every tenth bolt, and the last bolt installed in each work area during the shift shall be accurately determined immediately after installation. [53 FR 32528, Aug. 25, 1988, as amended at 67 FR 38385, June 4, 2002; 68 FR 19347, Apr. Thawing pipes electrically, except with heat tape. The training must include. Safety can means an approved container, of not over 5 gallons capacity, having a spring-closing lid and spout cover. (b) Metal magazines shall be equipped with electrical bonding connections between all conductive portions so the entire structure is at the same electrical potential. 57.22241 Advance face boreholes (I-C mines). The controls shall be located so that spills or overruns will not endanger persons. 57.18013 Emergency communications system. Suitable clearance at shaft stations shall be provided to allow safe movement of persons, equipment and materials. Bins, hoppers, silos, tanks, and surge piles. [53 FR 32526, Aug. 25, 1988, as amended at 55 FR 37218, Sept. 7, 1990]. Where mine cars are hoisted by cage or skip, means for blocking cars shall be provided at all landings and also on the cage. Such primers shall be placed at the back or bottom of the hole. A warning that is audible above the surrounding noise level shall be sounded, (b) When trains approach persons, crossing, other trains on adjacent tracks; and. Shafts that have not been inspected within the past 7 days shall not be used until an inspection has been conducted by a competent person. (2) Automatically deenergize electrical equipment, except power to monitoring equipment determined by MSHA to be intrinsically safe under 30 CFR part 18, and prevent starting such equipment when methane levels reach 1.0 percent; and. If the main fan is located underground: (i) The cable or conductors supplying power to the fan shall be routed through areas free of fire hazards; or, (ii) The main fan shall be equipped with a second, independent power cable or set of conductors from the surface. 57.1000 Notification of commencement of operations and closing of mines. Persons shall not enter the mine until ventilating air has passed over the blast area and through at least one atmospheric monitoring sensor. (3) An operator must provide access to a miner, former miner, or, with the miner's or former miner's written consent, a personal representative of a miner, to any record required to be maintained pursuant to 57.5071 or 57.5060(d) to the extent the information pertains to the miner or former miner. (c) Fire alarm systems shall be maintained in operable condition. Compressor discharge pipes where carbon build-up may occur shall be cleaned periodically as recommended by the manufacturer, but no less frequently than once every two years. Roll protection means a framework, safety canopy or similar protection for the operator when equipment overturns. Blasting switch means a switch used to connect a power source to a blasting circuit. These records, if retained by the operator, shall be open for inspection by the Secretary of Labor, his authorized representative, and authorized representatives of the official mine inspection agency of the State in which the mine is located. 57.19008 Friction hoist synchronizing mechanisms. (2) Kept in a totally enclosed cargo space while being transported by a vehicle; (i) Within 50 feet of any magazine or open flame; (ii) Within any building in which a fuel-fired or exposed-element electric heater is operating; or, (iii) In an area where electrical or incandescent-particle sparks could result in powder ignition; and. (2) All persons, except those working on the fan, shall be withdrawn, the ventilation shall be restored to normal and the air quality in the affected active workings shall be tested by a competent person to assure that the air quality meets the requirements of the standards in subpart D of this part, before any other persons are permitted to enter the affected active workings. (ii) The blasting agent portion of the facility may be used for the storage of other necessary equipment; (3) Kept clean, suitably dry, and orderly; (4) Provided with unobstructed ventilation openings; (5) Kept securely locked unless all access to the mine is either locked or attended; and. An operator must retain appropriate evidence of the competence of any person to perform specific maintenance tasks in compliance with those standards for one year after the date of any maintenance, and upon request must provide the documentation to the authorized representative of the Secretary. The ramps and dumping facilities shall provide width, clearance, and headroom to safely accommodate the mobile equipment using the facilities. Loose objects on the mast or drill platform. Hoists shall have rated capacities consistent with the loads handled and the recommended safety factors of the ropes used. (a) Mine operators must monitor as often as necessary to effectively determine, under conditions that can be reasonably anticipated in the mine, whether the average personal full-shift airborne exposure to DPM exceeds the DPM limit specified in 57.5060. Seals and stoppings (I-A, I-B, and I-C mines). (ii) No greater than the yield point of the bolt or anchorage capacity of the rock. 57.17001 Illumination of surface working areas. Suitable warning notices shall be posted at the power switch and signed by the individuals who are to do the work. 57.14205 Machinery, equipment, and tools. The total relieving capacity of the relief valves shall prevent pressure from exceeding the maximum allowable working pressure in a receiver tank by not more than 10 percent. Blasting agent. (e) Blocking or mechanical securing of the raised component is required during repair or maintenance of elevated mobile work platforms. [66 FR 5907, Jan. 19, 2001; 66 FR 35520, July 5, 2001]. (3) Where a mine has been classified in Categories I through V after the effective date of these standards and category reassignment is being considered, the mine shall comply with the standards applicable to the category to which presently assigned until category placement is final. Loading means placing explosive material either in a blasthole or against the material to be blasted. [50 FR 4082, Jan. 29, 1985, as amended at 60 FR 33723, June 29, 1995]. (a) Before explosive material is transported in hoist conveyances, (1) The hoist operator shall be notified; and. [50 FR 4082, Jan. 29, 1985, as amended at 60 FR 33722, June 29, 1995]. [50 FR 4082, Jan. 29, 1985, as amended at 68 FR 32361, May 30, 2003; 69 FR 38842, June 29, 2004]. They are divided into the following classes: Class II liquidsthose having flash points at or above 100 F (37.8 C) and below 140 F (60 C). (c) This provision does not apply to rail equipment. 291Testing and Marking Hydrants. All foam-type blocks used for stopping construction shall be solid. American Table of Distances means the current edition of The American Table of Distances for Storage of Explosives published by the Institute of Makers of Explosives. 57.19066 Maximum riders in a conveyance. (b) Gasoline shall not be stored underground in any quantity. If you have comments or suggestions on how to improve the www.ecfr.gov website or have questions about using www.ecfr.gov, please choose the 'Website Feedback' button below. [69 FR 38840, June 29, 2004, as amended at 80 FR 52987, Sept. 2, 2015]. 1291 (30 U.S.C. A 1-hour self-rescue device approved by MSHA and NIOSH under 42 CFR part 84 shall be made available by the operator to all personnel underground. (3) The Assistant Secretary shall make the final decision based upon consideration of the record of the proceedings. (a) Mine operators shall establish emergency firefighting, evacuation, and rescue procedures for the surface portions of their operations.

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