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MSHA

MSHA stands for the Mine Safety and Health Administration, the federal agency that regulates worker safety in U.S. mines, including mines where asbestos was extracted or where asbestos contaminated other minerals such as vermiculite and talc. MSHA sets exposure limits for airborne asbestos in mining operations, conducts inspections, and investigates miner deaths and illnesses. It is part of the U.S. Department of Labor and is separate from OSHA, which covers most non-mining workplaces.

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Origin

MSHA was created by the Federal Mine Safety and Health Act of 1977, which consolidated mine safety enforcement under a single agency and expanded protections beyond coal mines to include metal and nonmetal mines. It succeeded the earlier Mining Enforcement and Safety Administration (MESA) and traces its regulatory lineage back to the Bureau of Mines, established in 1910.

Significance in Asbestos Context

For patients whose exposure happened in or near a mine (including the W.R. Grace vermiculite mine in Libby, Montana, chrysotile mines in Vermont and California, and talc mines in upstate New York), MSHA records can be a critical source of evidence. The agency's inspection reports, citations, dust sampling data, and accident investigations may document the exposure conditions, asbestos contamination levels, and company knowledge that connect a worker's disease to a specific operation. Where MSHA cited a mine operator for excessive asbestos dust or for failing to warn miners, those citations can support claims that the company knew of the hazard. MSHA also distinguishes mine-site exposures from downstream manufacturing exposures, which can determine which agency's records and which legal theories apply to your case.

OSHA, Libby Montana, W.R. Grace, Vermiculite, Permissible Exposure Limit, Tremolite

Notes

  • If you or a family member worked in a mine, mill, or processing facility, request MSHA records for that site through a FOIA request or ask your attorney to obtain inspection, citation, and dust-sampling files.
  • Preserve any pay stubs, union records, W-2s, or company IDs that establish dates and job titles at a mine site. MSHA records are organized by mine ID and operator, and matching them to a specific worker requires this documentation.
  • Mention mine or mill employment specifically to your treating physician so it is recorded in your medical history; the occupational exposure note in your chart can matter for both diagnosis and your legal claim.
  • Be aware that MSHA jurisdiction ends at the mine gate. Exposures during transport, manufacturing, or end-product use typically fall under OSHA, so your case may involve records from both agencies.

In the Union Carbide documents

MSHA is named in 36 Union Carbide documents dated 1979 to 1987 (1 as the source, 36 mentioned), from asbestos lawsuits over Union Carbide's Calidria asbestos. 35 of them are published in our collection.

Names in the documents

The spellings documents use for MSHA, OCR misreadings included, so a search for any of them finds this page: Mine Safety and Health Administration · Mine Safety and Health Administration, Department of the Interior · M.S.H.A · Mine Safety and Health Administration (MSHA) · MSHA Asbestos Standards Committee · U.S. Department of Labor, Mine Safety and Health Administration, National Mine Health and Safety Academy.

Where this comes from

This page brings together every document in our library that names MSHA, across collections. Titles and affiliations are taken from the documents themselves, and units and subsidiaries are grouped under the company they belong to.

Mentioned on this site

Cite this page

“MSHA.” AsbestosClaims.Law Library. https://asbestosclaims.law/library/organizations/msha.

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This page is provided for general informational purposes and does not constitute legal advice. Every asbestos case turns on its own facts, exposure history, diagnosis, deadlines, available evidence, and applicable law. Reviewing this page does not create an attorney-client relationship. For advice about your specific situation, call 833-4-ASBESTOS for a free case review.