Any fishing vessel, refrigerated cargo vessel (reefer), or supply vessel 100 gross tons (GT) or over is eligible for an International Maritime Organization (IMO) ship number.

In addition, any fishing vessel, refrigerated cargo vessel (reefer) or supply vessel 12 meters in length or over — authorized to operate outside waters of national jurisdiction (within an RFMO or another country’s 200-mile exclusive economic zone [EEZ]) — including those with a non-steel hull construction is eligible for an IMO number.

IMO Registration Instructions

Learn how to register for an IMO ship number for a fishing vessel.

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