CII
Start 1 January 2023 for all cargo, RoPax and cruise vessels above 5,000 GT and international trade.
5% CO2 reduction 2023 - 40% CO2 reduction 2030 - 70% CO2 reduction 2050.
Cost impact before 2026 limited, cost impact after 2026 severe.
IMO mandated regulation, enforced by class.
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The Carbon Intensity Indicator (CII) measures the efficiency with which a ship transports goods or passengers and is expressed in grams of CO2 emitted per cargo-carrying capacity and nautical mile. The ship is then assigned an annual rating ranging from A to E, with the rating thresholds becoming increasingly stringent as we approach 2030. The CII applies to all cargo, passenger, and cruise ships exceeding 5,000 GT.
The yearly CII is calculated using IMO DCS data, and the ship is rated from A to E. A corrective action plan must be developed as part of the SEEMP and approved for ships that receive a D rating for three consecutive years or an E rating in a single year.
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CII is calculated as the amount of CO2 emitted per ton of cargo and nautical mile. Correction factors will be added to the CII calculation in a separate guideline that will be developed next year.
For the time being, using actual cargo carried rather than capacity (i.e. the EEOI) can only be reported voluntarily and not for CII rating purposes.
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applies to ships above 5,000 GT of the following ships types:
Bulk carriers
Gas carriers
Tankers
Container ships
General cargo ships,
Refrigerated cargo carriers
Combination carriers
LNG carriers
Vehicle carriers
Ro-Ro cargo vessels
Ro-Ro passenger vessels
Cruise ships.
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Verification of the CII may be carried out by another RO than the one that Classes the ship, since this is a verification that can be carried out remotely. It should however be the same verifier as for IMO Data Collecting System for fuel oil consumption of ships (IMO DCS) since the CII is to be calculated based on the collected and reported ship fuel oil consumption data which has been submitted to the DCS.
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Since the RO's are already authorised to conduct the surveys and to issue the certificates as regulated in MARPOL Annex VI, and the new requirements regarding EEXI and CII are amendments to MARPOL Annex VI, no separate authorisation is required. The Appendix to Annex 1 to the Agreement between the NL and RO dated 03 April 2014 already provides for this (link).
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For ships which are falling into more than one categories of ships, as per MARPOL Annex VI, regulation 28(.1), the most stringent attained annual operational CII, as calculated for the categories the ship may fall into, shall be used.
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When an ice-classed ship sails in ice conditions to and from a port within the same sea area within the same ice edge:
the period of time the ship is in that port (port period) may be included in either the voyage period to that port or the voyage period from that port; and
all fuel consumption for that port period may be included in the voyage adjustment to the calculation of the attained annual operational CII.
For further clarification and instructions see Resolution MEPC.355(78).
About CII
The Carbon Intensity Indicator (CII) is a measure of how efficiently a ship transports goods or passengers. It is given in grams of CO2 emitted per cargo-carrying capacity and nautical mile. Ships must document the CII and at verification audits prove that they are compliant with reduction trajectory towards ~40% in 2030.
The CII will take effect from 1 January 2023 and applies to ships above 5,000 GT of the following ships types: bulk carriers, gas carriers, tankers, container ships, general cargo ships, refrigerated cargo carriers, combination carriers, LNG carriers, vehicle carriers, Ro-Ro cargo vessels, Ro-Ro passenger vessels and cruise ships.
Every year from 2023, each ship has to annually calculate and report their CII. The yearly CII is calculated based on reported IMO DCS data and the ship is given a rating from A to E, where A is the best category and E the worst. Ships must achieve rating C as the minimum standard. For ships that achieve a D rating for three consecutive years or an E rating in a single year, a corrective action plan needs to be developed as part of the SEEMP and approved.
The CII rating will intensify each year according to the numbers shown above. With 2019 as the base year for the reference lines, the reduction factor defines the mid-point of the C-rating band for each year.
References
DNV - Carbon Intensity Indicator
DNV - Frequently Asked Questions
DNV - CII Implementation
Bureau Veritas - CII and EEXI Regulation