30 CFR 57.22205

§ 57.22205 Doors on main fans (I-A, II-A, III, and V-A mines).

United States · 30 CFR — Mineral Resources · Status: effective

Cite this

Citation: 30 CFR 57.22205, § 57.22205 Doors on main fans (I-A, II-A, III, and V-A mines), United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/133231
Permanent ID: ys:prov:133231@1
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Full text

In mines ventilated by multiple main fans, each main fan installation shall be equipped with noncombustible doors. Such doors shall automatically close to prevent air reversal through the fan. The doors shall be located so that they are not in direct line with explosive forces which could come out of the mine.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.