MARPOL Annex VI - EEXI Required Index
Required EEXI for a given ship type and DWT per MEPC.328(76) - the benchmark that every in-service ship (in-force 2023-01-01) must meet.
EEDI reference line
4.36gCO₂/t·nm
Required EEXI
3.49gCO₂/t·nm
Formula, assumptions, and limits
Reduction factor X = 20 % tankers/bulkers/gas; 15–50 % container depending on TEU. Achieve via EPL / SHaPoLi (engine / shaft power limitation) or operational adjustments.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Segment-specific coefficients | - | MEPC.281(70) | |
| Deadweight | dwt | tonnage certificate |