Requirement to Have Sound-Producing Devices
In periods of reduced visibility or whenever a vessel operator needs to signal his or her intentions or position, a sound-producing device is essential. The navigation rules for meeting head-on, crossing, and overtaking situations are examples of when sound signals are required.
- A sound-producing device is required on all waters and must be audible for one-half mile.
- Vessels less than 65.6 feet in length (including PWCs, sailboats, and manually powered vessels) are required to carry on board a mouth-, hand-, or power-operated whistle or horn, or some other means to make an efficient sound signal.
- Vessels 65.6 feet or more in length are required to carry on board a whistle or horn, and a bell.
- No vessel may be equipped with a siren except vessels used by law enforcement officers.