MARPOL Annex IV Sewage Discharge

Minimum distance from land and rate/speed limits for sewage discharge per MARPOL Annex IV.

SewageMARPOL

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

\text{Distance} = \{12 \text{ nm (raw)}, \; 3 \text{ nm (comminuted)}, \; 0 \text{ (STP)}\}

Symbol	Meaning	Unit
$Treatment$	Raw / comminuted / type-approved STP
$Speed$	Under-way ship speed	kn

Source: MARPOL Annex IV Reg 11; MEPC.227(64) - STP performance standards

Minimum distance from land and rate/speed limits for sewage discharge per MARPOL Annex IV.