The treaty that governs treaties: concluded at Vienna, in force under article 84(1)
Background
The United Nations Treaty Collection lists the Vienna Convention on the Law of Treaties under registration number 18232. Its place and date of conclusion are given as Vienna, 23/05/1969. The Convention entered into force on 27 January 1980, in accordance with article 84(1). The Secretary-General of the United Nations is its depositary, and the register shows it was registered ex officio on the same day it entered into force. The agreement type is recorded as Multilateral and the instrument carries an annex. It has five authentic texts: Spanish, Russian, French, English and Chinese. It was published in volume 1155 of the United Nations Treaty Series, at page 331. The Treaty Collection files it under the subject terms Law of Treaties, Treaties-Agreements (application) and Legal matters.
In plain words
Depositary Depositary of a treaty — The state or official that keeps the original text of a treaty and receives ratifications and accessions.
Authentic text Authentic text — A language version of a treaty that is legally as valid as the others for interpreting it.
Ex officio Ex officio — Done by virtue of the office held, without a separate request.