29 CFR 1926.431 - Maintenance of equipment.
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The employer shall ensure that all wiring components and utilization equipment in hazardous locations are maintained in a dust-tight, dust-ignition-proof, or explosion-proof condition, as appropriate. There shall be no loose or missing screws, gaskets, threaded connections, seals, or other impairments to a tight condition.
Title 29 published on 2014-07-01
no entries appear in the Federal Register after this date.