The Secretary General’s Letter of Invitation to Heads of State and Government
Procedural Information Letter from the Legal Counsel
List of the Multilateral Treaties Highlighted at the 2025 Treaty Event
List of Multilateral Treaties Deposited with the Secretary General Close to Achieving Universal Participation (as of 1 May 2025)
Selected Multilateral Treaties Deposited with the Secretary-General Currently Open for Signature
Complete List of Multilateral Treaties Deposited with the Secretary General (as of 1 May 2025)
2025 Treaty Event publication
Summary of Activities
List of the Multilateral Treaties Highlighted at the 2024 Treaty Event
List of Multilateral Treaties Deposited with the Secretary General Close to Achieving Universal Participation (as of 1 May 2024)
Complete List of Multilateral Treaties Deposited with the Secretary General (as of 1 May 2024)
2024 Treaty Event publication
The Secretary-General's Letter to Heads of States and Government
Procedural Information Provided by the Under-Secretary-General for Legal Affairs and United Nations Legal Counsel to Permanent Representatives in New York
List of Multilateral Treaties Highlighted at the 2023 Treaty Event
List of Multilateral Treaties Deposited with the Secretary-General which are Close to Achieving Universal Participation (status as of 1 April 2023)
Selected Multilateral Treaties Deposited with the Secretary-General which are Open for Signature
List of Multilateral Treaties deposited with the Secretary-General (as of 1 April 2023)
2023 Treaty Event publication
List of Multilateral Treaties Highlighted at the 2022 Treaty Event
List of Multilateral Treaties deposited with the Secretary-General (as at 4 April 2022)
List of Multilateral Treaties Highlighted at the 2019 Treaty Event
List of Multilateral Treaties Deposited with the Secretary-General which are Close to Achieving Universal Participation (status as of 31 May 2019)
List of Multilateral Treaties deposited with the Secretary-General (as at 31 May 2019)
List of Multilateral Treaties Highlighted in Treaty Event 2018
List of Multilateral Treaties Deposited with the Secretary-General which are Close to Achieving Universal Participation (status as of 13 April 2018)
List of Multilateral Treaties deposited with the Secretary-General (as at 12 April 2018)
The Secretary-General's Letter to Heads of States and Government in English [PDF] , in French [PDF] , in Spanish [PDF] Procedural Information Provided by the Under-Secretary-General for Legal Affairs and United Nations Legal Counsel to Permanent Representatives in New York in English [PDF] , in French [PDF] List of Multilateral Treaties Highlighted in Treaty Event 2017 in English [PDF] , in French [PDF] List of Multilateral Treaties Deposited with the Secretary-General which are Close to Achieving Universal Participation (status as of 24 July 2017) in English [PDF] in French [PDF] Selected Multilateral Treaties Deposited with the Secretary-General which are Open for Signature in English [PDF] in French [PDF] List of Multilateral Treaties deposited with the Secretary-General (as at 2 March 2017) in English [PDF] in French [PDF]
The Secretary-General's Letter to Heads of States and Government in English [PDF] , in French [PDF] , in Spanish [PDF] Procedural Information Provided by the Under-Secretary-General for Legal Affairs and United Nations Legal Counsel to Permanent Representatives in New York in English [PDF] , in French [PDF] List of Multilateral Treaties Highlighted in Treaty Event 2016 in English [PDF] , in French [PDF] List of Multilateral Treaties Deposited with the Secretary-General which are Close to Achieving Universal Participation (status as of 27 May 2016) in English [PDF] in French [PDF] Selected Multilateral Treaties Deposited with the Secretary-General which are Open for Signature in English [PDF] in French [PDF] List of Multilateral Treaties deposited with the Secretary-General (as at 27 May 2016) in English [PDF] in French [PDF] 2016 Treaty Event publication English [PDF] , French [PDF]
The Secretary-General's Letter to Heads of States and Government in English [PDF] , in French [PDF] , in Spanish [PDF] Procedural Information Provided by the Under-Secretary-General for Legal Affairs and United Nations Legal Counsel to Permanent Representatives in New York in English [PDF] , in French [PDF] List of Multilateral Treaties Highlighted in Treaty Event 2015 in English [PDF] , in French [PDF] in Spanish [PDF] List of Multilateral Treaties Deposited with the Secretary-General which are Close to Achieving Universal Participation (status as of 7 May 2015) in English [PDF] in French [PDF] Selected Multilateral Treaties Deposited with the Secretary-General which are Open for Signature in English [PDF] in French [PDF] List of Multilateral Treaties deposited with the Secretary-General (as at 14 April 2015) in English [PDF] in French [PDF] 2015 Treaty Event publication English [PDF] , French [PDF]
The Secretary-General's Letter to Heads of States and Government in English [PDF] , in French [PDF] , in Spanish [PDF] Procedural Information Provided by the Under-Secretary-General for Legal Affairs and United Nations Legal Counsel to Permanent Representatives in New York in English [PDF] , in French [PDF] List of Multilateral Treaties Highlighted in Treaty Event 2014 in English [PDF] , in French [PDF] in Spanish [PDF] List of Multilateral Treaties Deposited with the Secretary-General which are Close to Achieving Universal Participation (status as of 6 May 2014) in English [PDF] in French [PDF] Selected Multilateral Treaties Deposited with the Secretary-General which are Open for Signature in English [PDF] in French [PDF] List of Multilateral Treaties deposited with the Secretary-General (as at 14 April 2014) in English [PDF] in French [PDF] 2014 Treaty Event publication English [PDF] , French [PDF]