Deck General USCG Question #914 (Set 28)

What form of venting of cargo tanks is allowed for a tank barge certificated to carry grade B petroleum products?

Official USCG Answer & Rule Citation

Correct Answer: Option B — Individual pressure-vacuum relief valves with flame screens

Per 46 CFR, tank barges carrying volatile Grade B flammable liquids must use individual pressure-vacuum relief valves equipped with approved flame screens to prevent flame propagation.

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