A resolution calling upon the Senate to give its advice and consent to the ratification of the United Nations Convention on the Law of the Sea.

Bill Number

S.Res. 331

Origin Chamber

Senate

Congress

119th Congress, Session 1

Policy Area

International Affairs

Status

Introduced

Latest Action

2025-07-22: Referred to the Committee on Foreign Relations. (text: CR S4531)

Last Updated

2026-03-31T14:52:15Z

AI-Generated Summary

Purpose

This Senate Resolution (S. Res. 331) urges the U.S. Senate to provide its advice and consent for ratifying the United Nations Convention on the Law of the Sea (UNCLOS), a 1982 treaty that sets rules for ocean activities, including navigation, resource use, and territorial claims. The goal is to make the U.S. a formal party to UNCLOS, which it has not joined despite treating many of its rules as existing international custom.

Key Provisions

• Affirmation of National Interest: Declares that U.S. ratification of UNCLOS is essential for national security, economic stability, and global influence.
• Urge for Ratification: Calls on the Senate to approve the treaty, originally transmitted in 1994, and highlights benefits like securing U.S. rights in disputed areas.
• Priority Recommendation: Positions UNCLOS ratification as a top federal government priority, especially amid challenges in regions like the Indo-Pacific, Arctic, and Black Sea.

The resolution includes extensive "whereas" clauses citing historical context, expert testimonies (from military leaders, admirals, and business figures), and examples of U.S. disadvantages without membership, such as exclusion from international tribunals and weakened responses to actions by countries like China and Russia.

Significant Changes to Existing Law

As a non-binding resolution, it does not alter U.S. law directly. However, successful ratification of UNCLOS would:

• Codify many U.S.-followed ocean rules (e.g., navigation freedoms in Exclusive Economic Zones, or EEZs—200-nautical-mile offshore areas for resource rights) into binding treaty law, reducing reliance on changeable "customary international law" (unwritten norms based on global practices).
• No major shifts to domestic laws, as U.S. military and economic operations already align with UNCLOS provisions, per statements from defense officials.

Potential Impacts

• On Government Agencies: Enhances U.S. military (e.g., Navy, Coast Guard) credibility in protesting excessive claims by nations like China in the South China Sea or Russia in the Arctic/Black Sea. Allows direct participation in the International Seabed Authority to influence deep-sea mining rules for critical minerals. Improves access to dispute resolution bodies like the International Tribunal for the Law of the Sea.
• On Citizens and Businesses: Boosts economic certainty for industries like shipping, telecommunications (97% of global internet relies on seabed cables), oil/gas, and mining by clarifying rights to extended continental shelves (seabed areas beyond EEZs). Reduces investment risks in ocean resources, potentially creating jobs and growth.
• On International Relations: Strengthens U.S. leadership in a rules-based global order, counters influence from non-allies (e.g., China, Russia), and enables U.S. involvement in territorial disputes. Could improve alliances by aligning with 170 ratifying nations and prevent U.S. isolation in forums like the Permanent Court of Arbitration.

Main Stakeholders Affected

• U.S. Military and Defense Leaders: Navy, Coast Guard, Indo-Pacific Command—benefit from stronger legal tools for operations without new restrictions.
• Business and Industry Groups: U.S. Chamber of Commerce, telecom, mining, shipping, and energy sectors—gain stability for investments in ocean resources and infrastructure.
• Government Bodies: Senate (Foreign Relations Committee), State Department, and Arctic/Indo-Pacific policymakers—gain diplomatic leverage.
• International Actors: Allies (e.g., Ukraine in Black Sea incidents), adversaries (e.g., China, Russia), and global bodies like the UN—face a more engaged U.S. in ocean governance.

Notable Legal, Constitutional, or Political Implications

• Legal: Ratification would give the U.S. enforceable standing in international courts (e.g., to observe hearings or file claims), addressing gaps like exclusion from the 2016 South China Sea arbitration. It "locks in" U.S. interpretations of ocean law, preventing shifts in customary norms.
• Constitutional: Reinforces the Senate's treaty ratification role under Article II, Section 2, requiring a two-thirds vote. No sovereignty concerns, as UNCLOS does not override U.S. laws or limit military freedoms, per expert views.
• Political: Bipartisan support (introduced by Sens. Hirono, Murkowski, and others) highlights consensus on strategic needs, but past ratification failures (e.g., 1994 transmission) show ongoing debates over UN involvement. Positions the U.S. as a leader rather than an outlier (joining Iran, North Korea, etc., as non-parties).

This summary was generated by AI and may contain inaccuracies. Refer to the official source document for the authoritative text.

Sponsor

Sen. Hirono, Mazie K. [D-HI]

Cosponsors (11)

Sen. Murkowski, Lisa [R-AK], Sen. Kaine, Tim [D-VA], Sen. Cassidy, Bill [R-LA], Sen. Van Hollen, Chris [D-MD], Sen. Young, Todd [R-IN], Sen. King, Angus S., Jr. [I-ME], Sen. Whitehouse, Sheldon [D-RI], Sen. Rosen, Jacky [D-NV], Sen. Schatz, Brian [D-HI], Sen. Coons, Christopher A. [D-DE], Sen. Shaheen, Jeanne [D-NH]

Recent Actions

• 2025-07-22: Referred to the Committee on Foreign Relations. (text: CR S4531)
• 2025-07-22: Introduced in Senate

Bill Versions

• Calling upon the Senate to give its advice and consent to the ratification of the United Nations Convention on the Law of the Sea. — issued 2025-07-22 — PDF (11 pages)