10-40-250 Boat whistles.
   Any vessel, craft, or float navigating the harbor shall be equipped with a whistle for signalling purposes which shall not be heard distinctly in ordinary weather at a distance of more than one-quarter of a mile. No person shall blow the whistle of any vessel, craft, or float at any time except as a signal to a bridge tender, or as a signal of danger, or as prescribed by the laws and regulations of the United States, and as provided by this Code.
(Prior code § 38-28)