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Boat whistles.

Municipal Code of Chicago § 10-40-250
in effect
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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)
Source: City of Chicago, Municipal Code of Chicago (American Legal Publishing, codelibrary.amlegal.com)URL: https://codelibrary.amlegal.com/codes/chicago/latest/chicago_il/0-0-0-2653545Fetched: 10/24/2026

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10-40-250 | Corpus