MEPC 55/23
ANNEX 18
UNIFIED INTERPRETATION TO REGULATION 15.2.1 OF THE
REVISED MARPOL ANNEX I
22A
Definition of “en route”
En route means that the ship is underway at sea on a course or courses, including
deviation from the shortest direct route, which, as far as practicable for navigation
purposes, will cause any discharge to be spread over as great an area of the sea as is
reasonable and practicable.
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