The Preparatory Committee for the 2026 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) is scheduled to hold its first session from 31 July to 11 August 2023 at the Vienna International Centre in Vienna, Austria. This will be the first of three planned sessions that will be held prior to the 2026 Review Conference.

The Preparatory Committee, open to all States parties to the Treaty, is responsible for addressing substantive and procedural issues related to the Treaty and the forthcoming Review Conference. The Chair-designate of the first session is Ambassador Jarmo Viinanen of Finland.


The NPT entered into force in 1970 and was extended indefinitely in 1995. The Treaty is regarded as the cornerstone of the global nuclear non-proliferation regime and an essential foundation for the pursuit of nuclear disarmament. It was designed to prevent the spread of nuclear weapons, to further the goals of nuclear disarmament and general and complete disarmament, and to promote cooperation in the peaceful uses of nuclear energy.

Under the Treaty, the nuclear-weapon States are obliged not to transfer possession or control to any recipient nuclear weapons or other nuclear explosive devices, and not in any way to assist, encourage or induce non-nuclear-weapon States to manufacture, acquire or control over such weapons or devices. The non-nuclear-weapon States are obliged not to receive any transfer of or control over nuclear weapons or nuclear explosive devices, and not to manufacture or otherwise acquire such weapons or devices as well as not to seek or receive any assistance in this regard. The non-nuclear-weapon States further undertake to accept safeguards administered by the International Atomic Energy Agency on all source or special fissionable materials in all peaceful nuclear activities within their territory or under their jurisdiction or control, with a view to preventing diversion of nuclear energy from peaceful uses to nuclear weapons or other nuclear explosive devices.

The Treaty guarantees the right of all States parties develop research, production and use of nuclear energy for peaceful purposes without discrimination and in conformity with their basic non-proliferation obligations. Article VI of the NPT includes the only legally binding treaty-based obligation requiring States to pursue in good faith effective measures related to nuclear disarmament.

The Preparatory Committee normally holds a sessions of 10 working days in each of the three years leading up to a review conference. As decided by States parties in 2000, the purpose of the first two Preparatory Committee sessions is to consider principles, objectives and ways in order to promote the full implementation of the Treaty, as well as its universality, and to make recommendations thereon to the Review Conference. To that end, each session should consider specific matters of substance relating to the implementation of the Treaty and Decisions 1 and 2 as well as the Resolution on the Middle East adopted in 1995, and the outcomes of subsequent Review Conferences, including developments affecting the operation and purpose of the Treaty. The third session is specifically mandated to make every effort to produce a consensus report containing recommendations to the Review Conference, taking into account the deliberations and results of its previous sessions.

The 2000 Review Conference agreed to a substantive final document, including practical steps for the systematic and progressive efforts to implement article VI of the Treaty on nuclear disarmament. The 2010 Review Conference produced conclusions and recommendations for follow-on actions in the areas of nuclear disarmament, nuclear non-proliferation, peaceful uses of nuclear energy and the Middle East, particularly implementation of the 1995 Resolution on the Middle East. The 2005, 2015 and 2020 Review Conferences were unable to reach agreement on any substantive outcome documents.

The Tenth Review Conference decided to establish a working group on further strengthening the review process of the Treaty, open to all States parties (see NPT/CONF.2020/DEC.2). The website of the working group can be found here.

Final Documents of the Tenth NPT Review Conference
  • Final report of the Preparatory Committee for the 2020 Review Conference (NPT/CONF.2020/1)

The websites of past Review Conferences and Preparatory Committees can be found here.

Information for Participants


NPT/CONF.2026/PC.I/INF/1: Information for States parties, observer States and intergovernmental organizations

NPT/CONF.2026/PC.I/INF/2: Information for non-governmental organizations

Media advisory: The media advisory for the Preparatory Committee can be found here.

Lists of speakers:

The list of speakers for the general debate can be found here.
The list of speakers for cluster 1 can be found here.
The list of speakers for cluster 2 can be found here.
The list of speakers for cluster 3 can be found here.

Working Group


Side Events

The indicative calendar of side events organized by States Parties can be found here.


The Secretariat of the Preparatory Committee can be contacted at: npt@un.org.