Unique vessel identifiers (UVIs) such as IMO numbers help to improve maritime safety and security and reduce illegal fishing activities.
Some vessels, however, cannot obtain an IMO number because they are not large enough — or are not authorized to operate outside waters under national jurisdiction.
Our UVI/IMO Vessel List has been developed to include tuna fishing vessels that are not eligible to obtain an IMO number.
- TUVIxxxxxxx: A number issued by the tuna RFMOs during the process of creating a Consolidated List of Authorized Vessels
- ixxxxxxx: A number issued by ISSF. An ISSF-UVI will only be issued to vessels that cannot obtain an IMO number or a TUVI number.
