Article 76 Vienna Convention on the Law of Treaties

Depositaries of treaties

1. The designation of the depositary of a treaty may be made by the negotiating States, either in the treaty itself or in some other manner. The depositary may be one or more States, an international organization or the chief administrative officer of the organization.

2. The functions of the depositary of a treaty are international in character and the depositary is under an obligation to act impartially in their performance. In particular, the fact that a treaty has not entered into force between certain of the parties or that a difference has appeared between a State and a depositary with regard to the performance of the latter’s functions shall not affect that obligation.

See also: Article 75 Vienna Convention on the Law of Treaties