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Max Planck Encyclopedia of Public International Law [MPEPIL]

Fragmentation of International Law

Joost Pauwelyn

From: Oxford Public International Law (http://opil.ouplaw.com). (c) Oxford University Press, 2023. All Rights Reserved.date: 03 October 2024

Subject(s):
Customary international law — Lex specialis — NGOs (Non-Governmental Organizations)

Published under the auspices of the Max Planck Institute for Comparative Public Law and International Law under the direction of Professor Anne Peters (2021–) and Professor Rüdiger Wolfrum (2004–2020). 

1 The phenomenon of fragmentation of international law derives from the diversity of international law both in substance and procedure. As a Study Group of the International Law Commission (ILC) (‘ILC Study Group’; United Nations [UN]; International Law Commission [ILC]) recently noted: ‘This is the background to the concern about fragmentation of international law: the rise of specialized rules and rule-systems that have no clear relationship to each other. Answers to legal questions become dependent on whom you ask, what rule system is your focus on’ (Report of...
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