EEXI Compliance



The IMO has established new requirements to ensure vessels 400 Gross Tonnage and above comply with the Energy Efficiency Existing Ship Index (EEXI) and the Carbon Intensity Indicator (CII) regulations entering into force on January 1, 2023. Shipowners need to assess their fleets’ EEXI and CII compliance which must be completed by 1 November 2022. The CII is applicable to vessels with 5000 Gross Tonnage and above, and is based on fuel consumption data over a one-year period and the IMO final CII measure should be approved at MEPC 78 in June 2022.

EEXI applies to all self-propelled vessels 400 Gross Tonnage and above as described and engaged in international voyages subject to Marpol Annex V1.

GMCG can assist you in preparation for your compliance with EEXI.

Contact us now at or click the button below for guidance and help on EEXI  including preparation of EEXI Technical file

Introduction of EEXI

At the 76th session of the IMO Marine Environment Protection Committee (MEPC 76) held in June 2021, further amendments to MARPOL Annex VI were
adopted (IMO Resolution MEPC.328(76)) to implement the Energy Efficiency Existing Ship Index (EEXI) as a technical approach to achieve the short-term
target for improved transportation efficiency of at least 40% compared to 2008 and will enter into force on 1 November 2022.

EEXI is calculated using the same formula as EEDI and represents “the amount of CO2 emissions from a ship when the ship sail transports one ton cargo for one nautical mile”. Regardless of ship’s delivered date, ships of 400 gross tonnage and above engaged in international voyages are subject to the EEXI
regulations and the EEXI of each ship is to be calculated.

Most common technical measures to reduce ship’s EEXI:

  • Potential operational changes range from
    1. Speed reduction
    2. Vessel Sailing Route Assessments to determine consequential optimization.
    3. Dead weight increase.
    4. Existing system / equipment evaluations, upgrades, or power consumption reductions
    5. Cargo Handling System evaluations, upgrades, or power consumption reductions
    6. SW Pump evaluations, upgrades, or power consumption reductions
    7. VFD installation Evaluation
    8. Smart HVAC
  • Engine Power Limitation is the most significant techno-commercial method to reduce EEXI of the vessel.Energy efficiency technologies currently included in evaluation providing high level potential savings:
    1. Air Lubrication Systems
    2. Wind Assisted Propulsion (Flettner Rotors, Kite and Sail Propulsion, etc…)
    3. Marine Battery Systems / Energy Storage
    4. Waste Heat / Energy Recovery
    5. Exhaust Gas Cleaning Systems
    6. Efficiency Propellor retrofit
    7. Efficiency Rudder Retrofit
    8. Existing System / equipment auxiliary saving technologies
    9. Shaft Generators
    10. Engine Tuning
    11. Trim Optimization
    12. Coating / Antifoul evaluation
    13. Cold Ironing
    14. HVAC Optimization
    15. Insulation improvements

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