National Mining Association filed 2 comments on this docket between Jul 20, 2023 and Sep 12, 2023. 48 other organizations filed here. The comment window closed 1051d ago.
Please see attached the comments on the National Mining Association on the Mine Safety and Health Administration's proposed rule on Lowering Miners' Exposure: Respirable Crystalline Silica and Improving Respiratory Protection
Please see attached the National Mining Association's request for an extension of the comment period.
Many miners are exposed to respirable crystalline silica (RCS) in respirable dust. These miners can develop lung diseases such as chronic obstructive pulmonary disease, and various forms of pneumoconiosis, such as silicosis, progressive massive fibrosis, and rapidly progressive pneumoconiosis. These diseases are irreversible and may ultimately be fatal. MSHA’s existing standards limit miners’ exposures to RCS. MSHA will publish a proposed rule to address the existing permissible exposure limit of RCS for all miners and to update the existing respiratory protection standards under 30 CFR 56, 57, and 72.
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