---
title: "VCLT Article 53 Definition | Model Diplomat"
description: "VCLT Article 53 voids treaties conflicting with peremptory norms of international law. Essential for Model UN students and policy researchers."
url: "https://modeldiplomat.com/learn/glossary/vclt-article-53"
---

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Model Diplomat Research Team · Last reviewed June 22, 2026

TL;DR

- VCLT Article 53 declares void any treaty that, at the time of its conclusion, conflicts with a peremptory norm of general international law (jus cogens).
- What does Article 53 of the VCLT provide?
- How does Article 53 differ from Article 64 of the VCLT?
- What are examples of jus cogens norms under Article 53?
- How are disputes over Article 53 resolved?

[Civil Service & Diplomatic Exams](https://modeldiplomat.com/learn/civil-services/glossary)Updated June 22, 2026

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In Belgium v. Senegal (2012), the International Court of Justice affirmed that the prohibition of torture had become a peremptory norm of general international law, the category that Article 53 protects.

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