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United Nations Treaty Collection

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Managing entity
United Nations
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What can I find on this website?

The United Nations Treaty Collection ( contains information regarding the activities of the Treaty Section of the United Nations Office of Legal Affairs, as follows:

Depositary of Treaties; Information relating to the depositary functions of the Secretary-General in respect of over 560 multilateral treaties, including participation, communications and entry into force.

Registration and Publication of Treaties; Information relating to the registration and publication of treaties in accordance with Article 102 of the Charter of the United Nations, including data regarding each treaty registered with the Secretariat and the full text of the United Nations Treaty Series.

Resources; Publications and documents prepared by the Treaty Section aimed at providing guidance and information with regard to participation in multilateral treaties, the drafting of treaties, the depositary practice of the Secretary-General, and the registration and publication of treaties.

Training; Information on trainings and legal technical assistance provided by the Treaty Section.

Treaty Events; Information on the annual Treaty Event organised by the Secretary-General, held in parallel with the general debate of the General Assembly, as well as on special events on specific treaties. Such events are intended to facilitate the participation of States in the multilateral treaty framework.

What kind of information does the site provide with respect to multilateral treaties deposited with the Secretary-General?

You can access information relating to the depositary functions of the Secretary-General in respect of over 560 multilateral treaties in the Depositary section of this website.

The Status of Treaties page within the Depositary section, which replaces the prior annual publication entitled Multilateral Treaties Deposited with the Secretary-General, provides authoritative and up-to-date information on the status of each of the treaties deposited with the Secretary-General, including:

  • Title, date and place of conclusion;
  • Certified true copies;
  • Participants;
  • Date and method of entry into force;
  • Reservations, objections and other communications relating to the treaty;
  • Corrections and amendments

In the Depositary section, you can also access Certified True Copies of each treaty deposited with the Secretary-General, photos of treaty ceremonies and model instruments to be used by Member States when completing actions in relation to those treaties. This section also provides information on treaties deposited with the Secretary-General of the League of Nations.