EEXI and CII - ship carbon intensity and rating system

2023-01-07 15:20:45 Trade Bodies (World Marine)

(Continued from the previous issue)

What is a Carbon Intensity Indicator rating?

The CII determines the annual reduction factor needed to ensure continuous improvement of a ship's operational carbon intensity within a specific rating level.  The actual annual operational CII achieved must be documented and verified against the required annual operational CII. This enables the operational carbon intensity rating to be determined.

How will the new ratings work?

Based on a ship's CII, its carbon intensity will be rated A, B, C, D or E (where A is the best). The rating indicates a major superior, minor superior, moderate, minor inferior, or inferior performance level. The performance level will be recorded in a "Statement of Compliance" to be further elaborated in the ship's Ship Energy Efficiency Management Plan (SEEMP).

A ship rated D for three consecutive years, or E for one year,  will have to submit a corrective action plan to show how the required index of C or above will be achieved. Administrations, port authorities and other stakeholders as appropriate, are encouraged to provide incentives to ships rated as A or B.

 A ship can run on a low-carbon fuel clearly to get a higher rating than one running on fossil fuel, but there are many things a ship can do to improve its rating, for instance through measures, such as:  hull cleaning to reduce drag; speed and routeing optimization; installation of low energy light bulbs; and installation of solar/wind auxiliary power for accommodation services

How do the measures fit into IMO's decarbonization strategy?

The introduction of mandatory EEXI and CII comes under the framework of the Initial IMO Strategy for Reduction of GHG Emissions from Ships, adopted in 2018. The Initial Strategy sets out candidate short- mid- and long-term measures.

The introduction of EEXI and CII measures falls under the Strategy's short-term measures which commit IMO to a target of reducing carbon intensity of international shipping by 40% by 2030, compared to 2008.

How will the impact of the new regulations be assessed?

IMO's Marine Environment Protection Committee (MEPC) is to review the effectiveness of the implementation of the CII and EEXI requirements by 1 January 2026 at the latest and develop and adopt further amendments as required.

The review paragraph says: Regulation 28 Operational carbon intensity

Other Trade Bodies (World Marine)