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SUBPART 54.15—Pressure-Relief Devices (§54.15-1 to §54.15-25)

• 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.