The U.S. regulations require an emergency means of stopping the flow of oil during oil transfer operations. Where must these emergency means be operable from?

Correct Answer: Option D — usual operating station of the person-in-charge

Title 33 CFR 155.785 and 46 CFR require that the emergency means to stop the flow of oil or hazardous material during transfer operations must be operable from the usual operating station of the person-in-charge to ensure rapid response during an accidental spill or equipment failure.