['Specialized Industries']

['Mining']

07/19/2025

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§57.22204 Main fan operation and inspection (I-A, II-A, III, and V-A mines).

...

§57.22204 Main fan operation and inspection (I-A, II-A, III, and V-A mines).

RegSense CFR Regulations Mining Specialized Industries CFR Section English Focus Area USA

Main fans shall be—

(a) Provided with a pressure-recording system; and

(b) Inspected daily while operating if persons are underground. Certification of inspections shall be made by signature and date. Certifications and pressure recordings shall be retained for at least one year and made available to an authorized representative of the Secretary.

(Approved by the Office of Management and Budget under control number 1219- 0030)

['Specialized Industries']

['Mining']

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