The maritime boundary between Belgium and France was delimited by virtue of two Agreements that were reached simultaneously in 1990. One Agreement established the maritime frontier extending seaward from the land boundary terminus to the end of the twelve nautical mile territorial sea. The second Agreement delimited the eighteen nautical mile continental shelf boundary, which ended at the tripoint with the United Kingdom. Both boundaries were based on the equidistance methodology, with a compromise made for the Parties’ differing interpretation of how the low-tide coast should be determined.

Map showing the maritime boundary between Belgium and France

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