A facility used for the discharge of a cargo of a particular hazard, such as chlorine, butane or ethane, must have what to warn water traffic of an immediate danger during fire or cargo release?

Correct Answer: Option D — A siren or rotating flashing light

Marine transfer facilities handling hazardous materials like chlorine or ammonia are required by maritime safety regulations to install an audible siren or rotating flashing light to warn passing traffic of immediate danger during a fire or cargo release.