SCS South China Sea Legal and policy briefing

Legal framework

UNCLOS is the core framework, but national laws and regional instruments shape the dispute in practice.

The legal materials on this page separate international rules, adjudicatory procedure, regional commitments, and domestic maritime legislation.

UNCLOS allocation rules

UNCLOS supplies the baseline framework for maritime zones, continental shelves, island entitlements, environmental duties, dispute settlement, and navigation rights.

Part XV dispute settlement

Compulsory procedures under Part XV and Annex VII mattered because China (PRC) did not participate but the tribunal still had to satisfy itself of jurisdiction and factual support.

ITLOS and procedural rules

ITLOS rules matter for law-of-the-sea procedure, provisional measures, prompt release, advisory proceedings, and the broader institutional architecture of UNCLOS dispute settlement.

National maritime laws

Domestic baselines, EEZ, continental shelf, coast guard, maritime zones, and sea lanes laws translate international claims into operational authority and are frequent sources of protest.

Regional instruments

The ASEAN-China (PRC) Declaration on Conduct and Code of Conduct negotiations frame political commitments on self-restraint, confidence building, and peaceful settlement.

Legal source set

Treaties, procedural rules, national laws, and CLCS materials

20 sources shown
Treaty 1982

United Nations Convention on the Law of the Sea

The central treaty framework governing maritime zones, navigation, continental shelves, islands, environmental obligations, and Part XV dispute settlement.

Issuer
United Nations
Claimants
All claimants
Topics
UNCLOS, Maritime zones, Dispute settlement, Navigation
Primary source
Procedural Rules 2009

Rules of the Tribunal

ITLOS procedural rules covering institution of proceedings, written and oral phases, incidental proceedings, judgments, and advisory matters.

Issuer
ITLOS
Claimants
All claimants
Topics
Dispute settlement, Procedure, UNCLOS
Primary source
Regional Instrument 2002

Declaration on the Conduct of Parties in the South China Sea

Political declaration committing parties to peaceful settlement, freedom of navigation and overflight, self-restraint, and confidence-building measures.

Issuer
ASEAN
Claimants
China (PRC), Vietnam, Philippines, Malaysia, Brunei
Topics
Diplomacy, Navigation, Peaceful settlement
Primary source
Regional Instrument 2012

ASEAN's Six-Point Principles on the South China Sea

ASEAN statement reaffirming implementation of the DOC, guidelines, early conclusion of a Code of Conduct, and restraint by parties.

Issuer
ASEAN
Claimants
Vietnam, Philippines, Malaysia, Brunei, Indonesia
Topics
Diplomacy, Code of Conduct, Peaceful settlement
Primary source
National Law 1992

Law on the Territorial Sea and the Contiguous Zone

Domestic law defining the territorial sea and contiguous zone framework and listing the South China Sea island groups among claimed Chinese territories.

Issuer
China (PRC)
Claimants
China (PRC)
Topics
National law, Territorial sea, Sovereignty, China (PRC) policy
Primary source
National Law 1998

Exclusive Economic Zone and Continental Shelf Act

PRC legislation setting out claimed EEZ and continental shelf rights and duties.

Issuer
China (PRC)
Claimants
China (PRC)
Topics
National law, EEZ, Continental shelf
Primary source
National Law 2021

中华人民共和国海警法

Chinese-language text of the Coast Guard Law, defining maritime rights-protection and law-enforcement duties of Chinese coast guard institutions.

Issuer
China Coast Guard
Claimants
China (PRC)
Topics
National law, Law enforcement, Coast guard, China (PRC) policy
Primary source
National Law 2024

Republic Act No. 12064: Philippine Maritime Zones Act

Philippine statute defining maritime zones under national jurisdiction and aligning claims with UNCLOS and the arbitral award.

Issuer
Philippines
Claimants
Philippines
Topics
National law, Maritime zones, West Philippine Sea
Primary source
National Law 2024

Republic Act No. 12065: Philippine Archipelagic Sea Lanes Act

Philippine law governing archipelagic sea lanes passage and foreign ship and aircraft transit through designated routes.

Issuer
Philippines
Claimants
Philippines
Topics
National law, Navigation, Archipelagic sea lanes
Primary source
National Law 2012

Law of the Sea of Viet Nam

Vietnamese law governing baselines, internal waters, territorial sea, contiguous zone, EEZ, continental shelf, islands, and maritime activities.

Issuer
Vietnam
Claimants
Vietnam
Topics
National law, Maritime zones, Paracels, Spratlys
Primary source
National Law 2026

Malaysia: national legislation and maritime claims materials

UN state file collecting Malaysian maritime legislation, including EEZ, continental shelf, and territorial sea materials.

Issuer
United Nations
Claimants
Malaysia
Topics
National law, EEZ, Continental shelf
Primary source
National Law 1984

Exclusive Economic Zone Act 1984

Malaysia's principal EEZ statute governing sovereign rights, jurisdiction, and aspects of the continental shelf.

Issuer
Malaysia
Claimants
Malaysia
Topics
National law, EEZ, Continental shelf
Primary source
CLCS Submission 2019

Partial submission by Malaysia to the Commission on the Limits of the Continental Shelf

Malaysia's partial extended continental shelf submission for the northern part of the South China Sea, triggering a major diplomatic-note exchange.

Issuer
United Nations Commission on the Limits of the Continental Shelf
Claimants
Malaysia, China (PRC), Vietnam, Philippines, Brunei
Topics
Continental shelf, UNCLOS, Diplomatic notes
Primary source