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Code of Federal Regulations Title 46. Shipping § 46.154.703 Methane (LNG)

Current as of January 02, 2025 | Updated by Findlaw Staff

Unless a cargo tank carrying methane (LNG) can withstand the pressure build up due to boil-off for 21 days, the pressure in the cargo tank must be maintained below the set pressure of the safety relief valve for at least 21 days by:

(a) A refrigeration system that meets § 154.702;

(b) A waste heat or catalytic furnace that burns boil-off gas, and:

(1) Maintains the stack exhaust temperature below 535°C (995°F);

(2) Exhibits no visible flame;  and

(3) Is specially approved by the Commandant (CG–OES);

(c) Boilers, inert gas generators, and combustion engines in the main propelling machinery space that use boil-off gas as fuel;  or

(d) Equipment for services, other than those under paragraph (c) of this section, that use boil-off gas as fuel and that are located:

(1) In the main propelling machinery space;  or

(2) a space specially approved by the Commandant (CG–OES).

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Cite this article: FindLaw.com - Code of Federal Regulations Title 46. Shipping § 46.154.703 Methane (LNG) - last updated January 02, 2025 | https://codes.findlaw.com/cfr/title-46-shipping/cfr-sect-46-154-703/

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