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Vienna Convention on the Law of Treaties

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Vienna Convention on the Law of Treaties

Vienna Convention on the Law of Treaties
<img src="Example.jpg" alt="Opening session of the conference" style="width:250px;" />
Opening session of the conference
Full titleVienna Convention on the Law of Treaties
TypeMultilateral treaty
Signed23 May 1969
LocationVienna, Austria
Effective27 January 1980
Condition35 ratifications
Parties116 states
DepositaryUN Secretary-General
LanguagesArabic, Chinese, English, French, Russian, Spanish
Websitehttps://treaties.un.org