CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER D—TANK VESSELS (parts 30 to 39) > PART 35—OPERATIONS > SUBPART 35.20—Navigation (§35.20-1 to §35.20-45) > 35.20-35—Whistling—T/ALL.

35.20-35—Whistling—T/ALL.

The unnecessary sounding of a vessel's whistle is prohibited within any harbor limits of the United States.
[CGD 95-027, 61 FR 26000, May 23, 1996]