Environmental regulations implemented by the International Maritime Organization (IMO),
The amount of carbon dioxide discharged from transporting 1 nautical mile (1,852 m) of 1 ton cargo is indexed using ship
operation information such as fuel consumption and operating distance It’s a figure.
The CII regulation is applied to ships engaged in international navigation
with a total tonnage of 5,000 tons or more (vessels subject to the 26.3 rule in Annex 6 of MARPOL).