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Part IV Invalidity and Termination of Treaties, 18 Invalidity of Treaties: Anything New in/under the Vienna Conventions?

Joe Verhoeven

From: The Law of Treaties Beyond the Vienna Convention

Edited By: Enzo Cannizzaro

From: Oxford Public International Law (http://opil.ouplaw.com). (c) Oxford University Press, 2023. All Rights Reserved.date: 22 February 2024

Treaties, invalidity, termination, suspension, withdrawal — Vienna Convention on the Law of Treaties

This chapter analyses the alleged customary character of the grounds of invalidity as provided for in articles 46–53 of the Vienna Convention. It considers both merits and deficiencies. It asks: What are the other possible grounds of invalidity? The chapter also covers the originality of the procedural mechanism as organized in articles 65–67. Further topics include: validity of (direct or indirect) reservations to those articles, especially to article 66.a; analysis of states entitled to claim invalidity; and the effects of invalidity (ratione materiae, ratione personae, and ratione temporis).

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