6.4 Crude oil washing at sea
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Specifications and Manuals - Crude Oil Washing Systems - Revised Specifications for the design, operation and control of crude oil washing systemsResolution A.446(XI) Amended by Resolution A.497(XII) Amended by Resolution A.897(21) - 6. Operation - 6.4 Crude oil washing at sea

6.4 Crude oil washing at sea

 All crude oil washing must be completed before the ship leaves its final port of discharge. Where any tank is crude oil washed while the ship is at sea between multiple discharge ports, the tank shall be left empty and available for inspection at the next discharge port before commencing the next ballast voyage. This inspection may consist of multiple sounding/dipping of the bottom of the tank when the tank is empty. Departure ballast tanks shall be ballasted prior to departure from port so that examination of the surface of the ballast water can be made. In the latter case the guidance given in 4.2.10(b) is relevant to the inspection.


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