High Seas Treaty (BBNJ Agreement): Key Provisions and UPSC Relevance

Two-thirds of the ocean lies outside the jurisdiction of any country. This vast expanse — the high seas — covers roughly 61% of the ocean surface and holds the majority of marine biodiversity. Until recently, it was the most poorly governed part of the planet. Fishing fleets operated with weak oversight. Biotech firms patented marine genetic resources without any benefit-sharing obligation. Plastic pollution, shipping traffic and proposed deep-seabed mining moved faster than international law.

In June 2023, after nearly two decades of negotiation, the UN General Assembly adopted the Agreement under UNCLOS on the Conservation and Sustainable Use of Marine Biological Diversity of Areas Beyond National Jurisdiction — known as the BBNJ Agreement or, more popularly, the High Seas Treaty. It is the third implementing agreement under the UN Convention on the Law of the Sea (UNCLOS), 1982 — after the 1994 Part XI Agreement (seabed mining) and the 1995 Fish Stocks Agreement.

The Legal Architecture

UNCLOS defines maritime zones — territorial sea (up to 12 nautical miles), contiguous zone (24 nm), Exclusive Economic Zone (up to 200 nm), and the high seas beyond. The Area — the deep seabed beyond EEZs — is the "common heritage of mankind" under UNCLOS and governed by the International Seabed Authority (ISA).

Key Provisions of the High Seas Treaty

1. Marine Protected Areas (MPAs)

• Parties can propose area-based management tools, including MPAs, in the high seas.
• Decisions can be made by a three-quarters majority vote if consensus is not achieved — a critical design feature that stops a handful of states from blocking conservation action.
• Aligns with the Kunming–Montreal Global Biodiversity Framework (2022) goal of protecting 30% of land and sea by 2030 (30×30).

2. Marine Genetic Resources (MGR) and Benefit-Sharing

• The treaty establishes the fair and equitable sharing of benefits — both monetary and non-monetary — arising from the use of marine genetic resources of the high seas.
• A Clearing House Mechanism is set up to share scientific information, digital sequence data and technology transfer.
• Developing countries, led by the G77, pushed hard for this clause; developed countries resisted because their biotech firms hold most existing MGR patents.

3. Environmental Impact Assessments (EIAs)

• Parties must conduct EIAs for activities in the high seas likely to cause significant adverse impact on the marine environment.
• Strategic environmental assessments are also contemplated.
• A Scientific and Technical Body will develop standards and guidelines, review assessments and assist capacity-poor states.

4. Capacity Building and Technology Transfer

• Developed parties must facilitate transfer of marine technology to developing parties.
• Funding mechanisms include a voluntary trust fund and a special fund for capacity building.

5. Institutional Mechanisms

• A Conference of the Parties (COP) as the governing body.
• A Scientific and Technical Body for technical advice.
• A Secretariat.
• Access to information — parties must share data through the clearing house.

Contentious Issues During Negotiation

Marine Genetic Resources

The most difficult chapter. Whether MGR should be "common heritage of mankind" (developing country view) or "freedom of the high seas" (developed country view) split the negotiations for years. The final text lands in between — it creates benefit-sharing obligations but stops short of explicit "common heritage" language.

Monitoring Information Sharing

Some parties proposed a licensing scheme to track MGR collection and benefit flows. Others argued this would hinder bioprospecting research. The compromise is a lighter notification system routed through the Clearing House Mechanism.

Gaps in Scope

Critics note the treaty does not directly regulate:

• High-seas fishing — still governed by Regional Fisheries Management Organisations (RFMOs).
• Deep-seabed mining — under the International Seabed Authority.
• Shipping emissions and pollution — under the International Maritime Organization (IMO).

This creates coordination challenges. A high-seas MPA has no teeth against a fishing fleet unless the relevant RFMO aligns.

Enforcement

The treaty lacks a dedicated enforcement agency. Compliance depends on flag states, port states and the goodwill of COPs. No fines. No coast guard of the UN.

Sovereignty Concerns

States worry that MPAs may restrict their "freedom of the high seas" — navigation, overflight, cable laying and scientific research.

Opposition and Ratification Dynamics

• Russia withdrew from the final consensus, arguing the treaty does not balance conservation with sustainable use.
• Several developed countries — especially those hosting biotech and fishing interests — negotiated hard for weaker benefit-sharing clauses.
• Ratification: the treaty requires 60 ratifications to enter into force. As of early 2026, ratifications are accumulating steadily but slowly — the EU, many small island developing states and several Latin American countries have ratified.

India's Position

• India signed the BBNJ Agreement in September 2024.
• Ratification is pending as of 2025–26, subject to cabinet approval.
• India has backed strong benefit-sharing and common heritage language — consistent with its long-standing advocacy for the Global South on environmental and intellectual property issues.
• India’s deep-ocean interests — under the Deep Ocean Mission and polymetallic nodule exploration contracts with ISA — make the treaty strategically important.

Why the Treaty Matters

• Biodiversity: over 10% of marine species live primarily in the high seas.
• Carbon sink: the ocean absorbs 25% of anthropogenic CO2 and 90% of excess heat.
• Fisheries: high-seas fisheries contribute around $7.6 billion annually.
• Pharmaceutical potential: MGR have produced anti-cancer drugs, antibiotics and enzymes. The market runs into billions.
• Climate: protecting ocean ecosystems is part of the global climate solution.

Latest Developments (2024–26)

Updated context:

• India signed the BBNJ Agreement on 25 September 2024 at the UN General Assembly, joining over 100 signatories.
• Over 100 countries had signed the treaty by late 2024. Ratifications crossed 30 by early 2026, moving toward the 60 threshold.
• The EU, Chile, France, Germany, Spain, Monaco, Palau and many Pacific SIDS are among early ratifiers.
• UN Ocean Conference 2025 (Nice, France) kept BBNJ ratification near the top of the global ocean agenda.
• ISA negotiations on deep-seabed mining remained inconclusive in 2024–25; a moratorium coalition gained strength, calling for a pause until BBNJ-aligned EIA standards are in place.
• India's Deep Ocean Mission moved into advanced phases with Samudrayaan manned submersible trials.

UPSC Relevance

Paper mapping: GS Paper II — International Relations, International Treaties; GS Paper III — Environment, Biodiversity.

Prelims pointers:

• The BBNJ Agreement is the third implementing agreement under UNCLOS.
• It was adopted in June 2023.
• The treaty enters into force 120 days after 60 ratifications.
• MPAs under the treaty can be established by a three-fourths majority vote.
• The treaty sets up a Clearing House Mechanism for MGR benefit-sharing.
• UNCLOS defines the EEZ as up to 200 nautical miles from the baseline.
• The International Seabed Authority is based in Kingston, Jamaica.
• India signed the treaty in September 2024.
• The global biodiversity target is 30×30 — protect 30% of land and sea by 2030.

Mains angles:

• “Examine the significance of the High Seas Treaty (BBNJ Agreement) for global ocean governance and India’s interests.”
• "Discuss the gaps in the BBNJ Agreement with respect to fishing and deep-seabed mining and how they can be addressed."

PDF