14. You are in a channel in U.S. waters near an industrial plant with a load/discharge facility for barges. You hear a siren being sounded at the facility. What does this indicate?

A siren at a U.S. waterfront barge facility indicates danger, such as fire or hazardous cargo release. This alarm system is mandated to warn of emergencies and is not used for routine operations like barge movement or weather precautions.