Monitors three-year CII rating history and flags SEEMP Part III triggers.
Trigger formula
$$ \text{Part III required} = (\text{three consecutive D ratings}) \lor (\text{any single E rating}) $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Rating$_y$ | A–E band for year $y$ | - | MEPC.339(76) |
Sources
- IMO MEPC.346(78) - SEEMP Parts II and III.
- IMO MEPC.347(78).
- IMO MEPC.339(76).