The collection includes five categories of treaty-related data:

1. Status of Multilateral Treaties Deposited with the Secretary-General
2. The United Nations Treaty Series - contains the texts of over 34,000 bilateral and multilateral treaties in their authentic language(s), along with a translation into English and French, as appropriate
3. Texts of Recently Deposited Multilateral Treaties - includes the texts of multilateral treaties deposited with the Secretary-General that have not yet been published in the United Nations Treaty Series
4. Photographs of Treaty Signature Ceremonies
5. Titles of the Multilateral Treaties Deposited with the Secretary-General in the UN official languages