You are preparing to load fuel oil on a vessel of 1,600 gross tons constructed after June 30, 1974. Before loading, you must check that the fuel oil tank vents __________.

Correct Answer: Option C — have containment capacity for at least one barrel

Per 46 CFR 35.35-20, vessels of this class must have fuel tank vents equipped with containment capacity for at least one barrel to prevent accidental oil discharge into the water during bunkering operations. This is a critical environmental protection requirement for spill prevention.