In accordance with international MARPOL Annex I regulations and federal regulations under 33CFR Subchapter O, for oceangoing ships of 10,000 gross tons and above, 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 10,000 gross tons and above is required to be equipped with an approved 15 parts per million oily-water separator, AND it is required to have a high oil-content bilge alarm and a means to automatically stop the oily-water discharge when the oil content exceeds 15 ppm.

For vessels 10,000 gross tons and above, 33 CFR 151.10 requires an approved 15 ppm oily-water separator equipped with both a high oil-content alarm and an automatic stopping device. This ensures that any discharge exceeding the 15 ppm limit is immediately halted, providing a higher level of environmental protection for larger ships.