"From Jan. 1, 2023 it is
mandatory for all ships to calculate their attained EEXI to measure their
energy efficiency and to initiate the collection of data for the reporting of
their annual operational CII and CII rating," IMO said.
EEXI is a rating system that assesses the energy
performance of existing ships based on energy consumption data and other key metrics such as speed,
power and engine size. EEXI is based on the ship's specifications and not its
actual operating performance.
Noncompliant vessels that receive an
EEXI rating below a certain threshold will face IMO 2023 penalties and
restrictions and will be required to modify their engines or systems. EEXI will
be assessed at the first International Air Pollution Prevention Certification
survey after Jan. 1, 2023..
CII, the new global shipping carbon
intensity indicator, is used to rank and monitor the efficiency of individual
ships. It links the GHG emissions to the amount of cargo carried and the
distance traveled ratio.
The CII rating threshold will become stricter over
will therefore determine the annual carbon reduction factor needed to ensure
compliance. Each vessel will receive a grade from A (good) to E (poor) starting
Ships with three years of D grades or one year
receiving an E grade will have to put a corrective action plan in place.