U.S. Code of Federal Regulations
Regulations most recently checked for updates: Aug 27, 2025
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All TitlesTitle 46Chapter IPart 116Subpart I - Subpart I—Rails and Guards
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Piping, including valves, pipe fittings and flanges, conveying vapor, gas, or liquid, the temperature of which exceeds 65.5 °C (150 °F), must be insulated where necessary to prevent injuries.
