MEPC.337 cruise-ship reference line.
Formula
$$ \text{CII}_\text{required} = 930 \cdot \text{GT}^{-0.383} \cdot (1 - Z) $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $GT$ | Gross tonnage | - | ITC-69 |
| $Z$ | Annual reduction | fraction | MEPC.338(76) |
Cruise d-boundaries: d1=0.87, d2=0.95, d3=1.06, d4=1.16. Cruise ships lean on shore power and LNG to stay in rating.
Sources
- IMO MEPC.337/338/339(76).
- CLIA - cruise industry environmental report.