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CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER D—TANK VESSELS (parts 30 to 39) > PART 30—GENERAL PROVISIONS > SUBPART 30.10—Definitions (§30.10-1 to §30.10-71) > 30.10-45—Ocean—TB/O.
30.10-45—Ocean—TB/O.
Under this designation shall be included all tank vessels normally navigating the waters of any ocean or the Gulf of Mexico more than 20 nautical miles offshore.