46 C.F.R. § 154.540 Quick-closing shut-off valves: Emergency shut-down system.
Title 46 - Shipping
The quick-closing shut-off valves under §§154.530, 154.532, and 154.538 must have an emergency shut-down system that: (a) Closes all the valves; (b) Is actuated by a single control in at least two locations remote from the quick-closing valves; (c) Is actuated by a single control in each cargo control station under §154.320; and (d) Has fusible elements at each tank dome and cargo loading and discharge manifold that melt between 98 °C (208 °F) and 104 °C (220 °F) and actuate the emergency shut-down system.
Title 46: Shipping
PART 154—SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES
Subpart C—Design, Construction and Equipment
Cargo and Process Piping Systems
§ 154.540 Quick-closing shut-off valves: Emergency shut-down system.

