Vienna Convention on the Law of Treaties information
International agreement
Vienna Convention on the Law of Treaties
Vienna Convention on the Law of Treaties
Parties Signatories Non-parties
Signed
23 May 1969
Location
Vienna
Effective
27 January 1980
Condition
Ratification by 35 states[1]
Signatories
45
Parties
116 (as of January 2018)[2]
Depositary
UN Secretary-General
Languages
Arabic, Chinese, English, French, Russian and Spanish[1]
Full text
Vienna Convention on the Law of Treaties at Wikisource
The Vienna Convention on the Law of Treaties (VCLT) 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 treaties are drafted, defined, amended, and interpreted.[3] An international treaty is a written agreement between countries subject to international law that stipulates their consent to the creation, alteration, or termination of their rights and obligations, as stipulated in the treaty.[4]
The Vienna Convention on the Law of Treaties was adopted and opened to signature on 23 May 1969,[5][1] became effective on 27 January 1980,[1] and has been ratified by 116 sovereign states as of January 2018.[2] Non-ratifying parties, such as the U.S., have recognized parts of the VCLT as a restatement of customary international law.[6] In treaty law, the VCLT is the authority for resolving disputes about the interpretation of a treaty.[7]
^ abcdVienna Convention on the Law of Treaties, pg. 1
^ ab"Vienna Convention on the Law of Treaties". United Nations Treaty Series. Retrieved 17 April 2016.
^Anthony, Aust (2006). "Vienna Convention on the Law of Treaties (1969)". Max Planck Encyclopedia of Public International Law. doi:10.1093/law:epil/9780199231690/e1498. ISBN 9780199231690. Retrieved 26 July 2019.
^capt. Enchev, V. (2012), Fundamentals of Maritime Law ISBN 978-954-8991-69-8
^untreaty.un.org, Law of treaties Archived 17 October 2013 at the Wayback Machine, International Law Commission, last update: 30 June 2005. Consulted on 7 December 2008.
^United States Department of State. "Is the United States a party to the Vienna Convention on the Law of Treaties?". Retrieved 15 September 2015.
^"50 Years Vienna Convention on the Law of Treaties". juridicum.univie.ac.at (in German). Retrieved 12 November 2019.
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