Vienna Convention on the Law of Treaties
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The Vienna Convention on the Law of Treaties (VCLT), adopted on May 22 1969, codified the pre-existing international customary law on treaties, with some necessary gap-filling and clarifications. Most states are parties to it. However, even those that are not may still recognize it as binding upon them in as much as it is a restatement of already existing law (the United States is among these).
The Convention entered into force on January 27, 1980.
External links
- Vienna Convention (http://www.un.org/law/ilc/texts/treaties.htm) on United Nations web site