UPSC PracticeUPSC Practice
UPSC Notes

United Nations Convention on the Law of the Sea (UNCLOS)

PYQs

5

Articles

1

Momentum

15

Phase IFoundation

Background

Overview

UNCLOS is fundamental to international law and maritime governance, directly impacting India's maritime interests, security, and economic activities. It's a frequent topic in GS2 (International Relations) and GS3 (Security, Economy) due to its role in resolving maritime disputes and regulating ocean resources.

The United Nations Convention on the Law of the Sea (UNCLOS), adopted in 1982, is an international treaty that establishes a comprehensive legal framework governing all ocean space, its uses, and resources. It defines maritime zones, rights, and obligations of states regarding navigation, resource exploitation, and environmental protection.

Phase IIStatic core

Facts & tables

Key facts

Adoption & Entry

Adopted in 1982, entered into force in 1994.

Scope

Often called the 'constitution for the oceans', governing all ocean space.

Key Provisions

Defines maritime zones (territorial sea, EEZ, high seas) and navigation rights (innocent passage).

India's Status

India is a signatory and has ratified UNCLOS.

Reference table

Static syllabus anchors

TypeReference
Conceptual areaInternational Relations

Reference table

Institutions & roles

BodyRole
International Tribunal for the Law of the Sea (ITLOS)Dispute resolution body under unclos
International Seabed Authority (ISA)Manages seabed resources beyond national jurisdiction
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Multi-statement analysis

Prelims angle: Factual recall

Quick revision

  • Global treaty governing ocean space.
  • Defines maritime zones (territorial sea, EEZ, etc.).
  • Establishes navigation rights (innocent passage).
  • India is a signatory and ratified.
  • Crucial for maritime security and resource management.

High-confidence PYQs

2024Multi-statement analysis, Factual recall

Consider the following statements: Statement-I : Sumed pipeline is a strategic route for Persian Gulf oil and natural gas shipments to Europe. Statement-II ...

GeographyOpen question
2022Multi-statement analysis, Factual recall

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

International RelationsOpen question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

International RelationsOpen question
2022Multi-statement analysis, Institutional roles and functions

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

International RelationsOpen question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

International RelationsOpen question
2017Statement-based questions, Factual recall

Consider the following in respect of the Indian Ocean Naval Symposium (IONS): 1. Inaugural IONS was held in India in 2015 under the chairmanship of the Indi...

International RelationsOpen question
2015Statement-based questions, Conceptual understanding

With reference to ‘Indian Ocean Rim Association for Regional Cooperation (IOR-ARC)’, Consider the following statements: 1. It was established very recently i...

International RelationsOpen question

Topic timeline

International Relations
Prelims 2015· Statement-based questions, Conceptual understanding

With reference to ‘Indian Ocean Rim Association for Regional Cooperation (IOR-ARC)’, Consider the following statements: 1. It was established very recently i...

Open question
Prelims 2017· Statement-based questions, Factual recall

Consider the following in respect of the Indian Ocean Naval Symposium (IONS): 1. Inaugural IONS was held in India in 2015 under the chairmanship of the Indi...

Open question
Prelims 2022· Multi-statement analysis, Factual recall

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

Open question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

Open question
Prelims 2022· Multi-statement analysis, Institutional roles and functions

With reference to the United Nations Convention on the Law of Sea, consider the following statements: 1. A coastal state has the right to establish the bread...

Open question

With reference to the United Nations General Assembly, consider the following statements: 1. The UN General Assembly can grant observer status to the non-mem...

Open question
Prelims 2024· Multi-statement analysis, Factual recall

Consider the following statements: Statement-I : Sumed pipeline is a strategic route for Persian Gulf oil and natural gas shipments to Europe. Statement-II ...

Open question

Indian seafarer killed in attack on ship in Black Sea

25 Jul 2026 · An international treaty establishing the legal framework for all ocean space, defining maritime zones, navigation rights, and state obligations, crucial for maritime governance and dispute resolution.

Read article

Related topics

Current topic

United Nations Convention on the Law of the Sea (UNCLOS)

Often confused with

International Law

Open notesOften confused with

Strait of Hormuz and Maritime Choke Points

Open notesOften confused with

Strait of Hormuz and Maritime Security

Open notes

Practice writing on this topic

UPSC has asked 5 linked questions on United Nations Convention on the Law of the Sea (UNCLOS) in Mains. Write an answer to one — and get it evaluated.

See Mains PYQsEvaluate an answer
Browse all topics