Energy Efficiency Existing Ships Index (EEXI) & Carbon Intensity Indicator (CII)

IMO’s MEPC 76 adopted amendments to MARPOL Annex VI, as part of its short-term measures under the IMO GHG Reduction Strategy. New regulations have been introduced on Energy Efficiency Existing Ships Index (EEXI) and Carbon Intensity Indicator (CII). The amendments have entered into force on 1st November 2022

Indian Register of Shipping (IRClass) is offering services related to the new requirements Energy Efficiency Existing Ships Index (EEXI) and Carbon Intensity Indicator (CII) to assist shipowners and managers for ensuring compliance.

Energy Efficiency Existing Ships Index (EEXI)

Vessels will have to demonstrate compliance by the annual, intermediate or renewal IAPP survey whichever comes first on or after 1 January 2023, by having and approved EEXI Technical File and the revised International Energy Efficiency (IEE) Certificate

IRClass has developed web-based electronic tool for calculation of EEXI, evaluation for compliance and preparation of EEXI Technical File in the required format and it  is available on our existing web-based platform for SEEMP and Data collection and reporting at

Further for vessels which are not meeting the required level of EEXI, IRClass can advise on the emission reduction measures and estimations of energy efficiency improvement using numerical methods such as Computational Fluid Dynamics (CFD) analysis.

Reference Documents for EEXI

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Carbon Intensity Indicator:

The Carbon Intensity Indicator (CII) is an operational measure and will be applicable to ships of 5000 GT & above. Based on the annual data collected, the attained annual operational CII will have to be calculated, documented, and verified against the required annual operational CII to determine operational carbon intensity rating A, B, C, D or E (A being the most superior). IRClass will support the stakeholders in understanding and preparing the revised SEEMP and our electronic tool can be used to determine the attained and required CII and estimate the rating of the vessel.
IRClass also provides customized training to create awareness about the new regulations for shore and ship staff

Reference Documents for CII

Click here to download reference documents