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Code · CFR · Title 30 — Mineral Resources · Part 57 · § 57.11054

§ 57.11054. Communication with refuge chambers.

25 words·~1 min read·/us/cfr/t30/s§ 57.11054·

A research copy — for the controlling text, always check the official state or federal source. Not legal advice.

Telephone or other voice communication shall be provided between the surface and refuge chambers and such systems shall be independent of the mine power supply.
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