By Daniel Gleeson
July 11, 2018 - The Mine Safety and Health Administration (MSHA) is re-examining its own coal dust rule to see if it is providing miners with the necessary protection they need.
MSHA, via a request for information (RFI) in the Federal Register, is soliciting comments, data, and information from industry, labor, the Department of Health and Human Services’ National Institute for Occupational Safety and Health, and other stakeholders related to the rule entitled ‘Lowering Miners’ Exposure to Respirable Coal Mine Dust, Including Continuous Personal Dust Monitors’.
The organization is also seeking information and data on engineering controls and best practices that mine operators find effective to achieve and maintain required respirable coal mine dust levels, particularly those practices that can be replicated throughout mines nationwide to achieve similar results.
MSHA said: “Due to the significant latency period between exposure and disease, MSHA anticipates the agency will not likely be able to fully evaluate the health effects of the rule for a decade or more.”
David Zatezalo, MSHA Assistant Secretary, said the study had been initiated to determine if the rule was meeting its intended result, and warned mining companies that the organization had “no intention of rolling back the protections afforded to coal miners under the final dust rule”.
The new rule, which originally took effect on August 1, 2014 and has since been updated, sought to:
On August 1, 2016, Phase three of MSHA’s respirable dust rule went into effect. This saw the concentration limits for respirable coal mine dust lowered from 2 mg per m³ of dust to 1.5 mg/m³ at underground and surface coal mines, and the concentration limits for respirable coal mine dust lowered from 1 mg/m³ to 0.5 mg/m³ for intake air at underground mines and for part 90 miners (coal miners who have evidence of the development of pneumoconiosis).
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