French Continental Plate Extension Programme

Site Administrators, Data Providers

Ifremer, Marine Geoscience research unit


Under the terms of the United Nations Law of the Sea Convention (Montego Bay, 1982), ratified by France in 1996, coastal states can extend the maritime areas under their jurisdiction beyond the limits of the EEZ (Exclusive Economic Zone). Extension conditions must be based on documents which incontestably establish the position of the external rim of the continental plate, defined in article 76 of the Convention.

The maritime field currently under French jurisdiction occupies a surface area of almost 11 million km² France can make claims in all waters bordering its territories. This work should make it possible to extend the maritime area by more than 1.5 million km², or three times the area of mainland France.


To catalogue cartographical documents produced within the scope of the project.

Who is this catalogue for?

The site data is available for viewing by the general public.







Further information

  • Contact(s): Catherine.Satra@ifremer.fr

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