Ship carbon intensity and rating system enter into force

Chamber of Shipping > Blog > News > International > Ship carbon intensity and rating system enter into force

Amendments to the International Convention for the Prevention of Pollution from Ships (MARPOL) Annex VI entered into force on 1 November 2022. Developed under the framework of the Initial IMO Strategy on Reduction of GHG Emissions from Ships agreed in 2018, these technical and operational amendments require ships to improve their energy efficiency in the short term and thereby reduce their greenhouse gas emissions. From 1 January 2023 it will be mandatory for all ships to calculate their attained Energy Efficiency Existing Ship Index (EEXI) to measure their energy efficiency and to initiate the collection of data for the reporting of their annual operational carbon intensity indicator (CII) and CII rating. MSC, among others, is concerned that the proposed methodology for CII calculations could lead to situations in which a vessel’s rating would worsen simply because it spends more time in port.

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