2026-12661NoticeWallet

Mining Firm Files Typical Safety Standards Petition

Published Date: 6/24/2026

Notice

Summary

Fossil Rock Resources, LLC asked to change some mine safety rules to use a different method that keeps miners just as safe. This affects their Fossil Rock Mine and could change how safety checks are done, possibly saving time or money. Everyone has until July 24, 2026, to share their thoughts before a decision is made.

Analyzed Economic Effects

5 provisions identified: 2 benefits, 2 costs, 1 mixed.

Permit intrinsically-safe PAPRs

Fossil Rock Mine asks MSHA to allow specific intrinsically safe powered air-purifying respirators (PAPRs) and specified full-face respirators to be used in return air outby the last open crosscut at Fossil Rock Mine in Emery County, Utah. The petition says MSHA-approved permissible PAPRs are discontinued or unavailable and the listed intrinsically safe devices provide equal protection.

Training, inspection, and repair rules

The petition requires affected miners to receive training consistent with the mine's respiratory protection program, examination of each unit prior to use to ensure housing integrity and readiness, and immediate removal from service of damaged or malfunctioning equipment for repair or replacement per manufacturer recommendations.

Device and component limits required

If approved, use would be limited to the specific devices and manufacturer-approved components named in the petition (CleanSpace EX, 3M Versaflo TR-800 with TR-830 battery pack, and 3M Ultimate FX full-facepiece component). Only the identified units and approved components would be permitted under the alternative method.

Battery charging restricted to surface

The petition would require that all PAPR battery charging occur on the surface or in another location outby the last open crosscut and outside return air courses; no batteries or charging equipment may be charged, repaired, or serviced in return air courses. Only manufacturer-approved charging equipment may be used.

Methane action threshold retained

The petition specifies that if methane concentrations reach 1.0 percent or greater, actions must be taken in accordance with 30 CFR part 75. The proposed devices are to supplement, not replace, required engineering and administrative dust controls.

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Key Dates

Published Date
Comments Due
6/24/2026
7/24/2026

Department and Agencies

Department
Independent Agency
Agency
Labor Department
Mine Safety and Health Administration
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