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Code of Federal Regulations (Last Updated: May 6, 2024) |
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Title 46 - Shipping |
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Chapter I - Coast Guard, Department of Homeland Security |
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SubChapter O - Certain Bulk Dangerous Cargoes |
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Part 154 - Safety Standards for Self-Propelled Vessels Carrying Bulk Liquefied Gases |
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Subpart C - Design, Construction and Equipment |
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Atmospheric Control in Cargo Containment Systems |
§ 154.904 - Inert gas system: Controls.
Latest version.
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§ 154.904 Inert gas system: Controls.
The inert gas system must have:
(a) At least one check valve in the cargo area to prevent the back flow of cargo vapor into the inert gas system, or another means specially approved by the Commandant (CG-OES);
(b) If the inert gas system is in the machinery space or another space outside the cargo area, a second check valve in the cargo area meeting paragraph (a) of this section;
(c) Automatic and manual inert gas pressure controls; and
(d) Valves to isolate each inerted space.
[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]