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Sound Signal 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.

If on Nevada State Waters
Less than 26 feet long (includes PWC) Whistle, horn, or other mechanical sound device required
26 feet long or longer Whistle, horn, or other mechanical sound device and a bell required
If on Waters Under USCG Jurisdiction
Less than 39.4 feet long (includes PWC) Some way of making an efficient sound signal, such as handheld air horn, athletic whistle, an installed horn, etc.
39.4 feet long or longer Device that can make an efficient sound signal that is audible for one-half mile and lasts for 4 to 6 seconds