When should a vessel use a sound signal?

A vessel should use a sound signal when it is restricted in maneuverability because this condition often necessitates communication with other vessels to ensure safety on the water. The sound signals serve as a warning to nearby boats that the vessel may not be able to change course or stop quickly, allowing others to take necessary precautions. The International Regulations for Preventing Collisions at Sea (COLREGs) specify sound signal requirements in various situations, emphasizing their importance in avoiding collisions, particularly when a vessel is hampered in its ability to maneuver.

Using sound signals appropriately in this scenario helps convey critical information to other mariners, ensuring a shared understanding of the vessel's capabilities and limitations in navigation. This proactive communication is essential in maintaining safety in congested or challenging waters.