Japanese class society ClassNK’s innovation notation, combining a baseline IE (Innovative Environmental) with stackable sub-notations.
IE baseline (all three)
- NOx Tier III + SOx ≤ 0.10 %.
- CO₂ ≥ 30 % below EEDI Phase 2 reference.
- IMO type-approved ballast water treatment.
Innovation sub-notations (any / all)
| Sub-notation | Trigger |
|---|---|
| (WindAssist) | Flettner, kite or wing-sail with CFD-validated thrust |
| (Battery) | Type-approved Li-ion ESS ≥ 500 kWh |
| (FuelCell) | MSC.485(101)-compliant fuel cell installation |
| (OPS) | IEC 80005-1 HV shore connection |
Notation string example: IE (WindAssist, OPS).
Sources
- ClassNK - Rules Part H Ch.16 Innovation Notation.
- ClassNK - Technical Journal on green shipping.