U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 46Chapter IPart 196Subpart 196.20 - Subpart 196.20—Whistling
View all text of Subpart 196.20 [§ 196.20-1 - § 196.20-1]
§ 196.20-1 - Unnecessary whistling prohibited.

(a) The unnecessary sounding of the vessel's whistle is prohibited within any harbor limits of the United States.

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