Which safety item is required to be on all boats?

A sound-making device is a required safety item on all boats because it plays a critical role in signaling and communication on the water. In the event of emergencies or when navigating busy waterways, being able to use a horn, whistle, or other signaling devices is essential for alerting other boaters to your presence or calling for assistance. These devices help prevent collisions and ensure that everyone on the water is alerted to potentially dangerous situations.

The requirement for such devices is usually outlined in navigational regulations, emphasizing their importance in maintaining safety on the water. Other items like fire extinguishers, life rafts, and first aid kits are also important for safety but are not universally mandated for all types of boats, making the sound-making device a fundamental necessity across different boating circumstances.