Urgent Marine Information broadcasts require what?

• A. a cancellation message
• B. a confirmation message from the master
• C. no message is required
• D. a routine weather update

Answer: (A)

Urgent Marine Information broadcasts are used to relay information about hazards or safety issues that could affect navigation or the safety of life at sea. When the urgent information is no longer valid or the situation has been resolved, a cancellation message must be issued to terminate the broadcast and prevent crews from acting on outdated information. This keeps all mariners in the area properly informed and avoids confusion on the airwaves. A confirmation from the master isn’t a standard requirement for concluding an urgent broadcast, and sending no message would leave the information hanging. A routine weather update isn’t appropriate for closing an urgent safety advisory, since weather updates are separate and do not cancel an urgent notice.