Subpart 54.15. Subpart 54.15—Pressure-Relief Devices

• § 54.15-1 - General (modifies UG-125 through UG-137).
• § 54.15-3 - Definitions (modifies appendix 3).
• § 54.15-5 - Protective devices (modifies UG-125).
• § 54.15-10 - Safety and relief valves (modifies UG-126).
• § 54.15-13 - Rupture disks (modifies UG-127).
• § 54.15-15 - Relief devices for unfired steam boilers, evaporators, and heat exchangers (modifies UG-126).
• § 54.15-25 - Minimum relief capacities for cargo tanks containing compressed or liquefied gas.