Do you know MSHA regulations
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Rosie's answer
Published by SALUSI am familiar with MSHA (Mine Safety and Health Administration) regulations, particularly as they relate to underground mining operations. These regulations cover various aspects of safety, including diesel-powered equipment 1, 4, ventilation [1], fire prevention 2, 5, and emergency response [2].
For example, MSHA regulations are referenced in the context of diesel-powered equipment used in underground mines, requiring certification or compliance with specific standards 1, 4. Additionally, for mobile diesel-powered equipment used underground, compliance with MSHA provisions in 30 CFR 57.5067 is required [1].
Keep in mind that specific requirements can vary based on the type of mine and the operations conducted. Always consult the most up-to-date MSHA regulations and any relevant state or local regulations to ensure full compliance.
Sources used for this answer
[1] Rules for the Administration of the Oregon Safe Employment Act (Construction, Division 3, OSHA Oregon)
Page 872
Open source documentSource excerpt
Division 3 AO 3-2019 Oregon Administrative Rules Oregon Occupational Safety and Health Division - (8) Whenever the ventilation system has been shut down with all employees out of the underground area, only competent persons authorized to test for air contaminants shall be allowed underground until the ventilation has been restored and all affected areas have been tested for air contaminants and declared safe. - (9) When drilling rock or concrete, appropriate dust control measures shall be taken to maintain dust levels within limits set in 1926.55. Such measures may include, but are not limited to, wet drilling, the use of vacuum collectors, and water mix spray systems. (10) - (i) Internal combustion engines, except diesel-powered engines on mobile equipment, are prohibited underground. - (ii) Mobile diesel-powered equipment used underground in atmospheres other than gassy operations. - (A) Shall comply with MSHA provisions in 30 CFR 57.5067; or - (B) If purchased on or before July 15, 2019, may alternatively comply with MSHA provisions under 30 CFR part 32 (revised as of July 1, 1996) (formerly Schedule 24) or be demonstrated by the employer to be fully equivalent to such MSHA-approved equipment, and shall be operated in accordance with that part. - (iii) For purposes of this paragraph (d)(10), when an applicable MSHA provision uses the term 'mine,' use the phrase 'underground construction site.' (Each brake horsepower of a diesel engine requires at least 100 cubic feet (2.832 m 3 ) of air per minute for suitable operation in addition to the air requirements for personnel. Some engines may require a greater amount of air to ensure that the allowable levels of carbon monoxide, nitric oxide, and nitrogen dioxide are not exceeded.) - (11) Potentially gassy or gassy operations shall have ventilation systems installed which shall: - (i) Be constructed of fire-resistant materials; and - (ii) Have acceptable electrical systems, including fan motors. - (12) Gassy oper…
[2] Occupational Health and Safety Code
Page 22
Open source documentSource excerpt
## Part 36 ## Mining ## Division 1 General - 531 Application - 532 Building safety - 533 Mine plan - 533.1 Specifications or procedures - 534 Reports - 535 Excavation - 536 Mine material and discards - 537 Dust from drilling - 539 Haul roads - 541 Mine walls - 542 Dumping block - 544 Reporting dangerous occurrences ## Fire Prevention and Emergency Response - 546 Emergency response - 547 Firefighting training ## Electrical Systems - 560 Electrical standards - 572 Hand-held electrical drills ## Rubber-Tired, Self-Propelled Equipment - 574 Rubber-tired, self-propelled equipment - 574.1 Autonomous equipment - 577 Emergency energy - 578 Hydraulic brakes - 579 Dual-brake systems - 585 Periodic service brake testing - 588 Auxiliary steering - 589 Auxiliary pump - 590 Auxiliary steering standards - 591 Design safety factors - 592 Clearance lights - 593 Line of sight - 594 Lights ## Conveyors - 598 Fire resistance - 599 Stopping
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