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Vienna Convention on the Law of Treaties

The Vienna Convention on the Law of Treaties is an international agreement that regulates treaties among sovereign states. Known as the "treaty on treaties", the VCLT establishes comprehensive, operational guidelines, rules, and procedures for how... Wikipedia
Condition: Ratification by 35 states
Depositary: UN Secretary-General
Effective: 27 January 1980
Languages: Arabic, Chinese, English, French, Russian and Spanish
Location: Vienna
Parties: 116 (as of January 2018)
Signed: 23 May 1969