Heavy-Lift / Project Cargo Ship CII

CII for heavy-lift ships (HLV) - specialised project-cargo carriers for wind turbines, refinery modules, mobile rigs. MEPC classifies them under general_cargo - tight CII targets for a trade that needs frequent full-power manoeuvring.

Ship typeHeavy lift

Ship & voyage

DeadweightDWTBigLift, Jumbo, COSCO Shipping HL fleet 12,000–35,000 DWT.Distance / yearnmYear

Fuel

FuelMasst

Attained CII: 13.840g CO₂ / (dwt·nm)

Required CII: 11.892g CO₂ / (dwt·nm)

Rating: D

Minor inferior - corrective plan required after three consecutive years.

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{CII}_\text{required} = 31948 \cdot \text{DWT}^{-0.792} \cdot (1 - Z) \quad (\text{DWT} \ge 20{,}000;\ \text{below: } 588 \cdot \text{DWT}^{-0.3885})

Symbol	Meaning	Unit
$DWT$	Deadweight	t
$Z$	Annual reduction	fraction

Source: IMO MEPC.353(78) Table 1 (reference line), MEPC.338(76) as amended by MEPC.400(83) (Z), MEPC.354(78) (rating boundaries)

In short

CII for heavy-lift project-cargo carriers using the MEPC.353(78) general-cargo reference line.

Learn the theory Specialised Ship Types: Ro-ro, Reefer, Heavy-Lift