Same Mine Again: Seeking Tweaks to Existing Safety Standards
Published Date: 3/3/2025
Notice
Summary
Peabody Twentymile Mining, LLC asked to change some safety rules at their mine to use a different way that keeps miners just as safe. This could affect how safety checks are done and might save time or money without risking anyone’s well-being. People have until April 2, 2025, to share their thoughts on this change with the Mine Safety and Health Administration.
Analyzed Economic Effects
5 provisions identified: 2 benefits, 2 costs, 1 mixed.
Methane limit and monitoring requirement
The petition's proposed conditions require the Drager X-plore 8700 PAPR to be de-energized when methane is detected at concentrations of 1.0 percent or more. The mine must continuously monitor for methane immediately before and during PAPR use, and all handheld methane detectors must be MSHA-approved and provide visual and audible warnings at or above 1.0 percent.
Permit use of Drager X-plore 8700 PAPR
Peabody Twentymile asked MSHA to allow the Drager X-plore 8700 powered air purifying respirator (PAPR) as an alternative to 30 CFR 75.1002(a) for use in continuous miner sections at the Foidel Creek Mine. The petitioner states the Drager unit meets ANSI/UL intrinsic-safety criteria and that the alternate method will "guarantee no less than the same measure of protection" if MSHA grants a petition decision and order (PDO).
Lithium battery safety and replacement rules
The petition would require using only Li‑Ion High Capacity or standard batteries that meet UL 1642 or IEC 62133, charging batteries only on the surface in areas free of combustible material with the manufacturer's charger, changing out battery packs in intake air, and removing a battery from service when its run time falls below 80 percent of the new battery run time. The operator must record initial run time and retain that record until the PAPR or battery is retired.
Training, certification, and recordkeeping rules
Under the petition's proposed PDO terms, affected employees must be trained in proper use/maintenance of the Drager X-plore 8700 (including de‑energizing at 1.0% methane and proximity detector placement), the operator must submit revisions to its 30 CFR part 48 training plans within 60 days after the PDO becomes final, complete MSHA Form 5000-23 entries noting the PAPR training, provide training within 60 days before use, and provide annual retraining.
Inspection, logbook, and weekly examination requirements
Each Drager unit must be assigned a unique ID, be physically examined prior to initial use, be inspected by a qualified person before use and at least weekly with examination results recorded in a separate logbook kept with the equipment (entries may be expunged after one year). Units found defective must be removed from service, and the operator must stock replacement filters and service units per manufacturer recommendations with dates recorded.
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Key Dates
Department and Agencies
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Previous / Next Documents
Previous: 2025-03393, Petition for Modification of Application of Existing Mandatory Safety Standards
Peabody Twentymile Mining wants to change some safety rules at their mine, promising to keep miners just as safe with new methods. This affects miners at their site and could change how safety checks are done, but won’t cut corners on protection. Everyone has until April 2, 2025, to share their thoughts, so speak up if you care about mine safety!
Next: 2025-03424, Sunshine Act Meetings
The SEC’s Investor Advisory Committee will hold a public meeting on March 6, 2025, both in-person and online. Anyone can join, watch, or send in written comments by March 5. The meeting covers hot topics like AI’s impact, investor fraud, and new recommendations—keeping investors in the loop without costing a dime to attend!