Vienna Convention on the Law of Treaties
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The 1969 Vienna Convention on the Law of Treaties (or VCLT) codified the pre-existing customary international law on treaties, with some necessary gap-filling and clarifications. The Convention entered into force on January 27, 1980. The VCLT has been ratified by 108 states as of May 2007; those that have not ratified it yet may still recognize it as binding upon them in as much as it is a restatement of customary law.

History

The VCLT was drafted by the International Law Commission (ILC) of the United Nations, which began work on the Convention in 1949 and finished in 1969 with a diplomatic conference held by the UN in Vienna, Austria. The Convention was adopted on May 22, 1969 and opened for signature the following day.

During the twenty years of preparation, several draft versions of the convention and commentaries were prepared by special rapporteurs of the ILC. James Brierly, Sir Hersch Lauterpacht, Sir Gerald Fitzmaurice and Sir Humphrey Waldock were the four special rapporteurs.

Scope

The scope of the Convention is limited. It applies only to treaties concluded between states, so it does not cover agreements between states and international organizations or between international organizations themselves.¹² Nor does it apply to agreements not in written form.¹

See also

• Vienna Convention on Diplomatic Relations (1961)
• Vienna Convention on Consular Relations (1963)
• Vienna Convention on the Law of Treaties between States and International Organizations or Between International Organizations (1986)
• Vienna Conventions for a list of other conventions

References

Wikisource has original text related to this article:

Vienna Convention on the Law of Treaties

• Convention Text (PDF)
• Damrosch, Henkin, et al, International Law, West Group 2001.
• Vienna Convention on the Law of Treaties 1969 (PDF), Done at Vienna on 23 May 1969. Entered into force on 27 January 1980. United Nations, Treaty Series, vol. 1155, p. 331 (backup in html)
• Text of the treaty at the Center for a World in Balance

Footnotes

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