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The Biodiversity Beyond National Jurisdiction (BBNJ) Agreement (or High Seas Treaty)

Published Jan 20, 2026Updated Jan 22, 2026

The Congressional Research Service is a nonpartisan policy and legal analysis arm of the Library of Congress. CRS reports are written for members of Congress and their staff, not the public — but they’re made available openly through Congress.gov.

The Biodiversity Beyond National Jurisdiction (BBNJ) Agreement (or High Seas Treaty) — Informed