IMO initiates new CII revision – MEPC 80

A new CII revision in order to set up a functioning framework is a matter of urgency for the shipping industry following the first year of recorded data. 

A new CII revision in order to set up a functioning framework is a matter of urgency for the shipping industry following the first year of recorded data. 

Regulation 28.11 of MARPOL Annex VI specifies that the CII revision, a review of regulations and associated guidelines shall be completed by 1 January 2026, including an assessment of the need for reinforced corrective actions or other means of remedy and the need for enhancement of the data collection system.  

A review has now been initiated with the approval of a review plan.  

Plan for review of the short-term GHG measures 

The 80th session of IMO’s Marine Environment Protection Committee (MEPC 80) has initiated the review of the short-term measures, ie the Carbon Intensity Indicators (CII revision), Energy Efficiency Existing Ship Index (EEXI), and Ship Energy Efficiency Management Plan (SEEMP), by approving the plan for such a review. 

Carbon Intensity Indicator, CII rating calculation
CII Calculation: Carbon Intensity Indicator Guide

The CII calculation is one of the top hits the past month. We debunk its complexity by simplifying the procedures based on IMO guidelines.

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The scope of the review will, among other things, include experiences with enforcement of short-term measures by Flag States and Port State Control (PSC), the CII metrics (currently Annual Efficiency Ratio (AER)), as well as correction factors and voyage adjustments for CII revision. 

The review will be carried out in three phases: 

  • From now until MEPC 82 (to be held in the autumn of 2024) the focus will be on data gathering
  • MEPC 82 will initiate a data analysis, which will be continued by a correspondence group until MEPC 83 (to be held in the spring of 2025)
  • A working group scheduled to meet in late 2024 or early 2025 will begin the review of the regulations in MARPOL Annex VI and the associated guidelines.  
Data to facilitate the review

MEPC 80 also approved changes to data points that shall be submitted annually to the IMO Ship Fuel Oil Consumption Database. The changes are expected to be adopted by MEPC 81 in April next year. However, these changes may not enter into force in the autumn of 2025 at the earliest, with application for the calendar year 2026. Therefore, data containing the new data points will not be available for consideration in the second half of 2027. Meanwhile, the review of short-term measures according to MARPOL Annex VI has to be concluded by 1 January 2026

Consequently, Flag States and other stakeholders, such as international organizations representing shipowners and/or charterers, are invited to collect data to facilitate the review process and submit it to IMO no later than by MEPC 82 in the autumn of 2024. 

Organizations will work together to facilitate the CII revision and review process in an attempt to support a metric, as well as limit the CII to fuel consumption that is within the control of the shipowner or the charterer, which will lead to commercial business practices, which lower CO2 emissions for the shipping sector. 

Which is the best CII trading?

With the present CII metric, the ship with the best AER would be the ship always trading in ballast condition without any cargo onboard. As a result, the current metric penalizes efficiently operated ships carrying cargo, while favoring inefficiently utilized empty ships. Whereas the metric AER favors ships in ballast condition, the voluntary metric currently used for trial purposes – the Energy Efficiency Operational Indicator (EEOI) severely penalizes them. Neither is appropriate. Ballast condition is an integral part of ships’ normal operation and should neither be favored nor severely penalized in the CII revision. 

Deduction of fuel oil consumption in CII revision

The inclusion of fuel consumption when the ship is not underway in the calculation of the attained CII also poses challenges for a functioning framework and the CII revision because: 

  • ships are penalized for time spent at ports despite the fact that the length of port calls is completely outside the control of the ship. The duration of port calls depends on the efficiency and limitations of the port or terminal. The CII regulations offer no incentives to ports and terminals to improve their efficiency 
  • ships engaged in short-sea shipping are penalized because the nature of the trade includes significantly more port calls compared to long-haul trades 
  • in periods of reduced demand and consequential oversupply of ships, some ships will wait at anchorage for long periods until new orders are received. This waiting time at anchorage results in a deterioration of the ship’s attained CII 
  • some ports and terminals are notorious for congestion, meaning that ships have to wait at anchorage for prolonged periods of time before being able to load or unload their cargo. This leads to some trades being disproportionally impacted by the CII framework to such a degree that they could be characterized as inferior trades. 

Source: BIMCO

See Also

Member States of the International Maritime Organization (IMO), meeting at the Marine Environment Protection Committee (MEPC 80), have adopted the 2023 IMO Strategy on Reduction of GHG Emissions from Ships, with enhanced targets to tackle harmful emissions.

The revised IMO GHG Strategy from MEPC 80 includes an enhanced common ambition to reach net-zero GHG emissions from international shipping close to 2050, a commitment to ensure uptake of alternative zero and near-zero GHG fuels by 2030, as well as indicative check-points for 2030 and 2040.

MEPC 80 – IMO adopts revised GHG strategy

IMO has adopted the 2023 IMO Strategy on Reduction of GHG Emissions from Ships at the MEPC 80, with enhanced targets to tackle emissions.

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