Maritime Security

December 15, 2025
Japanese
  1. On December 12 (local time), Japan deposited the instrument of accession to the Agreement under the United Nations Convention on the Law of the Sea on the Conservation and Sustainable Use of Marine Biological Diversity of Areas beyond National Jurisdiction (BBNJ Agreement) with the Secretary-General of the United Nations at the UN Headquarters in New York.
  2. The BBNJ Agreement establishes international rules for the conservation and sustainable use of marine biological diversity of the high seas and the Area, namely the sea-bed and ocean floor and subsoil thereof beyond the limits of national jurisdiction.
  3. Japan places importance on the maintenance and development of the maritime order based on the rule of law and actively participated in the negotiations which led to the adoption of the Agreement. Japan will continue to actively contribute to the effective implementation of the Agreement.

(Reference) BBNJ Agreement (PDF) Open a New Window

  1. The BBNJ Agreement was adopted at the further resumed fifth session of the Intergovernmental Conference on BBNJ on June 19, 2023. The Agreement will enter into force on January 17, 2026. As of December 14, 2025, 76 countries (including Japan) and the European Union (EU) are Parties to the Agreement.
  2. The approval for Japan to become a Party to the Agreement was obtained from the National Diet on May 23, 2025.
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