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Welcome to OXIO

Oxford International Organizations (OXIO) is a database of annotated documents pertaining to the law of international organizations. The database is a unique and important repository, and the first of its kind, for acts and practices of international organizations which are of central importance to enquiries into international law, including international institutional law, and which have never been consolidated in one single tool. Find more information here.

Repository of Constitutive Treaties

This repository aims to include the constitutive treaties of all international intergovernmental organizations. It has been compiled by the editorial team of Oxford International Organizations (OXIO). The Constitutive Treaties are reproduced here in their most recent version. Find more information on the CTR here.


 

Site News

January 31, 2024

OXIO Headnotes — January 2024

Two new headnotes have been added to Oxford International Organizations.

December 1, 2023

OXIO Headnotes — November 2023

Five new headnotes have been added to Oxford International Organizations.

November 1, 2023

OXIO Headnotes - October 2023

3 new headnotes have been added to Oxford International Organizations.

October 1, 2023

OXIO Headnotes - September 2023

1 new headnote has been added to Oxford International Organizations.