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46 C.F.R. § 97.20-1   Unnecessary whistling prohibited.

Title 46 - Shipping

Title 46: Shipping
PART 97—OPERATIONS
Subpart 97.20—Whistling

§ 97.20-1   Unnecessary whistling prohibited.

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