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Sound Producing Devices
Sound signals are required to be made under certain circumstances.  Meeting, crossing, overtaking situations, and periods of reduced visibility all require sound signals to be used.  (See Navigation Rules for specifics.
  • Vessels over 39.4 feet are required to carry on board a whistle (Athletic whistles are not acceptable), horn, and a bell.
  • Vessels under 39.4 feet are required to carry an efficient sound signaling device, such as a whistle, horn, or other means.
  • For PWC's a whistle attached to the operator's PFD meets the requirement.

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

US Coast Guard Auxiliary
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 
 
 
 
 
 
 
 
 

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