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04/14/2026

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REGSENSE
Topic Search
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Subpart G—Ventilation

RegSense CFR Subpart English CFR Regulations Focus Area USA

§57.8518 Main and booster fans.

§57.8519 Underground main fan controls.

§57.8520 Ventilation plan.

§57.8525 Main fan maintenance.

§57.8527 Oxygen-deficiency testing.

§57.8528 Unventilated areas.

§57.8529 Auxiliary fan systems.

§57.8531 Construction and maintenance of ventilation doors.

§57.8532 Opening and closing ventilation doors.

§57.8534 Shutdown or failure of auxiliary fans.

§57.8535 Seals.

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