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As informed by ClassNK Technical Information No. TEC-1245 and 1259, the Amendments to MARPOL Annex VI will enter into force on 1st November 2022. For ships that are required to have a Ship Energy Efficiency Management Plan (SEEMP) and have a total ton of 5,000 gross tonnage and above*), the Carbon Intensity Indicator (CII) rating system is applied in addition to Data collection system for fuel oil consumption of ships (IMO DCS).
*) Bulk carrier, Gas carrier, Tanker, Containership, General cargo ship, Refrigerated cargo carrier, Combination carrier, Passenger ship, Ro-ro cargo ship (vehicle carrier), Ro-ro cargo ship, Ro-ro passenger ship and LNG carrier, and Cruise passenger ship
The CII rating system is a system that calculates attained CII, which is