C.F.R. » Title 46 » CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY › SUBCHAPTER M—TOWING VESSELS › PART 143—MACHINERY AND ELECTRICAL SYSTEMS AND EQUIPMENT › Subpart C—Requirements for New Towing Vessels

46 C.F.R. § 143.590

Propulsor redundancy on vessels that move tank barges carrying oil or hazardous material in bulk

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(a) A towing vessel must be provided with at least two independent propulsors unless the requirements of § 143.595 are met.

(b) There must be independent controls for each propulsor at each operating station.

(c) In the event of a failure of a single propulsor, the remaining propulsor(s) must have sufficient power to maneuver the vessel to a safe location.