What is another requirement for boats less than 22 feet long?

For boats less than 22 feet long, the requirement for a sound signaling device is important for safety and adherence to maritime regulations. While larger vessels are often required to have more sophisticated sound signaling devices, smaller boats, due to their size and maneuverability, are mandated to carry a sound signaling device that is sufficient for their operational environment. This is typically defined as being able to produce a noise loud enough to be heard in the vicinity, which is crucial for safety in situations where visibility is limited or when the boat needs to communicate with other vessels. Having an audible signal is essential, particularly in recreational boating scenarios, to alert others of the vessel's presence or intentions, as well as to comply with navigation rules.

The other requirements, while important, pertain to different safety considerations or larger vessels. Life jackets are indeed necessary, but the focus is on the quantity relative to passengers rather than being a specific requirement for smaller boats. An anchor and line are typically recommended for maneuverability and mooring, while flares and signaling devices are usually more relevant for larger boats operating in open waters where distress signaling is critical.