The Second Meeting of States Parties will take place the week of 27 November - 1 December 2023 in the Trusteeship Council at United Nations Headquarters in New York, with Mexico serving as President.

UN Secretary-General António Guterres has circulated a note, dated 31 July 2023, to all UN member states convening the second Meeting of States Parties to the Treaty on the Prohibition of Nuclear Weapons (TPNW) for five days, from 27 November to 1 December 2023, at United Nations Headquarters in New York. The dates and location were decided upon by the States Parties at the first MSP in June 2022 and confirmed by the United Nations General Assembly in its resolution 77/54 of 13 December 2022.

Read the convocation note (pdf)

Observing the 2MSP for governments

States that have not yet become a party to the TPNW can attend meetings of states parties as observers, to view the proceedings and, if it wishes, contribute to the debates by making statements or submitting papers. Read ICAN’s Briefing Paper on Observing Meetings of State Parties here.

Civil Society Participation

The UN Office of Disarmament Affairs has now published the full information note for civil society organisations. Information about registration, side events, working papers and more can be found on this page. 

Read the accreditation and registration information

As the civil society coordinator for the TPNW, ICAN will continue to share relevant information about registration, side-events, working papers and more. Sign-up to receive emails with the latest information on civil society participation using the form below (if you are an ICAN partner or signed up to receive updates for 1MSP, there is no need to do so again): 

Other resources

Read about the First Meeting of States Parties here.

The Final Report of the First MSP including the Declaration and Action Plan is available here.

Learn about states parties' work to implement the Vienna Action Plan before the Second Meeting of States Parties here.

View the calendar of events, or list your own here.