MARPOL Annex VI - EEDI Required

Required EEDI for new-build ship per MEPC.281(70) - the baseline the designer must meet vs reference line.

EEDIMEPC.281Decarb

Ship typeDWTdwtEEDI phase

Reference line: 4.36gCO₂/t·nm

Required EEDI: 3.05gCO₂/t·nm

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{EEDI}_{req} = a \cdot DWT^{-c} \cdot (1 - X_{phase})

Symbol	Meaning	Unit
$a, c$	Segment reference coefficients
$X_{phase}$	Phase reduction factor

Source: MEPC.281(70) / MEPC.365(79)

In short

Required EEDI for new-build ship per MEPC.

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