The world's exclusive economic zones The ocean within 200 nautical miles of a country's seashore is that country's exclusive economic zone. (more) High Seas Treaty international agreement [2023] Ask the Chatbot a Question More Actions Share Share Share to social media Facebook X URL https://www.britannica.com/event/High-Seas-Treaty Feedback Corrections? Updates? Omissions? Let us know if you have suggestions to improve this article (requires login). Feedback Type Select a type (Required) Factual Correction Spelling/Grammar Correction Link Correction Additional Information Other Your Feedback Submit Feedback Thank you for your feedback Our editors will review what you’ve submitted and determine whether to revise the article.

　　External Websites Ask the Chatbot a Question Also known as: Agreement on Marine Biological Diversity of Areas Beyond National Jurisdiction, BBNJ Agreement, Biodiversity Beyond National Jurisdiction Written by Written by John P. Rafferty John P. Rafferty writes about Earth processes and the environment. He serves currently as the editor of Earth and life sciences, covering climatology, geology, zoology, and other topics that relate to... John P. Rafferty Fact-checked by Fact-checked by The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... The Editors of Encyclopaedia Britannica Last Updated: Oct. 6, 2025 •Article History Table of Contents Table of Contents Ask the Chatbot High Seas Treaty, international agreement created to address the conservation and sustainable use of marine life in sea zones and seabeds outside the exclusive economic zones (and thus jurisdiction) of any country. The Biodiversity Beyond National Jurisdiction (BBNJ) Agreement, colloquially known as the High Seas Treaty, was adopted in New York on June 19, 2023. It is an implementing agreement under the United Nations Convention on the Law of the Sea (UNCLOS) and is designed to protect...

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