According to the Pollution Prevention Regulations (33 CFR), which of the following statements is correct regarding the fuel oil containment under the oil filling connection section?

Correct Answer: Option D — The containment may be fixed or portable depending upon the age of the vessel.

33 CFR 155.310 governs oil transfer containment. Regulations allow for either fixed or portable containment depending on the vessel's construction date and size. This flexibility acknowledges that older vessels may not have been designed with integrated fixed containment systems, requiring portable alternatives to meet modern environmental protection standards.