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Maritime Boundaries Geodatabase, version 11
Citable as data publication
Flanders Marine Institute (2019). Maritime Boundaries Geodatabase, version 11. Available online at

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Availability: Creative Commons License This dataset is licensed under a Creative Commons Attribution 4.0 International License.

Despite the strategic significance of EEZs, a standard georeferenced product with maritime boundaries was not available at the global level (Claus et. al, 2014), until it was developed and made available by the Flanders Marine Institute (VLIZ) in 2006 (Deckers and Vanden Berghe, 2006).

The product developed at VLIZ consisted of two GIS layers providing both the maritime boundaries (lines) and the EEZs (polygons). The layers were regularly updated with 8 consecutive versions published between 2006 and 2014. Version 9 was launched by the VLIZ-hosted portal in October 2016: Straight and archipelagic baselines were included, together with remaining areas defined by UNCLOS: internal and archipelagic waters, territorial seas and contiguous zones. Version 10 (2018) fixes known issues, updated treaties or minor fixes. For version 11 (2019) UN country codes were included in the EEZ attribute table. The High Seas as defined by UNCLOS was added in 2020.

Marine/Coastal, Contiguous zones, Exclusive economic zone, International boundaries, Law of the sea, Territorial waters, World Oceans

Geographical coverage
World Oceans [Marine Regions]

Vlaams Instituut voor de Zee (VLIZ), moredata managerdatabase developerdata ownerdata creator

Related datasets
Parent dataset:, more
Child datasets:
Maritime Boundaries Geodatabase: Archipelagic Waters, version 3, more
Maritime Boundaries Geodatabase: Contiguous Zones (24NM), version 3, more
Maritime Boundaries Geodatabase: Extended Continental Shelves, version 1, more
Maritime Boundaries Geodatabase: High Seas, version 1, more
Maritime Boundaries Geodatabase: Internal Waters, version 3, more
Maritime Boundaries Geodatabase: Maritime Boundaries and Exclusive Economic Zones (200NM), version 11, more
Maritime Boundaries Geodatabase: Territorial Seas (12NM), version 3, more
(Partly) included in:
The intersect of the Exclusive Economic Zones and IHO sea areas, version 4, more
The union of world country boundaries and EEZs, version 3, more
Previous version:
(archived) Maritime Boundaries Geodatabase, more
Following version:
Maritime Boundaries Geodatabase, version 12, more

Dataset status: Completed
Data type: GIS maps
Metadatarecord created: 2019-09-30
Information last updated: 2023-10-11
All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy