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Code · CFR · Title 30 — Mineral Resources · Part 75 · § 75.343

§ 75.343. Underground shops.

48 words·~1 min read·/us/cfr/t30/s§ 75.343·

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(a)Underground shops shall be equipped with an automatic fire suppression system meeting the requirements of § 75.1107-3 through § 75.1107-16, or be enclosed in a noncombustible structure or area.
(b)Underground shops shall be ventilated with intake air that is coursed directly into a return air course.
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