General Cargo Ship CII

CII for multi-purpose and general cargo ships. MEPC.353(78) Table 1 sets two reference lines: a=31948, c=0.792 at 20,000 DWT and above, and a=588, c=0.3885 below 20,000 DWT.

Ship typeGeneral cargoMPV

Ship & voyage

DeadweightDWTMulti-purpose vessels 5,000–35,000 DWT typical.Distance / yearnmYear

Fuel

FuelMasst

Attained CII: 7.077g CO₂ / (dwt·nm)

Required CII: 11.404g CO₂ / (dwt·nm)

Rating: A

Major superior performance. No corrective action required.

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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 general-cargo and multi-purpose vessels using the MEPC.353(78) general-cargo reference.

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