In accordance with international MARPOL Annex I regulations and federal regulations under 33CFR Subchapter O, for oceangoing ships of 400 gross tons and above but less than 10,000 gross tons, what is the required means for preventing pollution by oil as it pertains to handling bilge slops?

Correct Answer: Option D — The oceangoing ship of 400 gross tons and above but less than 10,000 gross tons is required to be equipped with an approved 15 parts per million oily-water separator, but it is NOT required to have a high oil-content bilge alarm or a means to automatically stop the oily-water discharge when the oil content exceeds 15 ppm.

Per 33 CFR 151.10, oceangoing ships between 400 and 10,000 gross tons must be equipped with an approved 15 ppm oily-water separator. However, these specific vessels are not required to have the automatic stop device or the high oil-content alarm that is mandatory for larger vessels of 10,000 gross tons and above.