International Day against Nuclear Tests

Plenary. The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; regional disarmament and non-proliferation, including the implementation of the 1995 resolution on the Middle East; measures to address withdrawal from the Treaty; and ways to strengthen the review process to improve its effectiveness, efficiency, transparency, accountability, coordination and continuity. In doing so, the Conference will also tak...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Plenary The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; regional dis...

   At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; regional disarmament and non-proliferation, including the implementation of the 1995 resolution on the Middle East; measures to address withdrawal from the Treaty; and ways to strengthen the review process to improve its effectiveness, efficiency, transparency, accountability, coordination and continuity. In...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; regional disarmament ...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Plenary The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; regional dis...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Plenary The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; regional dis...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee III The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; r...

   At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; regional disar...

   At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee III The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and secur...

  At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee I The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; reg...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee II The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; re...

As a nuclear-weapon State Party to the Treaty on the Nonproliferation of Nuclear Weapons (NPT), the United States is committed to providing the fullest possible exchange of peaceful nuclear technology to NPT non-nuclear-weapon States. Participants: Ambassador Mike Waltz, Representative of the United States to the United Nations, Brandon Williams Administrator of the U.S. National Nuclear Security Administration. Ambassador Do Hung Viet, Permanent Representative of Vietnam to the United Nations. With representatives from the U.S. Department of Energy, U.S. National Nuclear Security Administration, U.S. Department of State, and Sandia National Laboratories. Watch the Golden Age of American Nuclear Energy (NPT Side Event)! Side Events

   At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. 11th Plenary meeting (after 5pm approximately) The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee III The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; r...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee II The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; re...

Recommendations and tools for the universalization and implementation of the International Convention for the Suppression of Acts of Nuclear Terrorism ( ICSANT ). This event will present the study's key findings and serve as a platform for dialogue among States and international partners on advancing universal adherence and effective implementation of ICSANT . It will showcase global and regional adherence trends, discuss identified challenges, and introduce practical implementation tools. By fostering exchange and cooperation, the event aims to reinforce international commitment to countering the terrorist use of nuclear and other radioactive material and to s trengthening the broader nuclear security and non-proliferation regime . Related Sites and Documents:  Concept note . Watch advancing the fight against nuclear terrorism (2026 NPT Review Conference Side Event)! Side Events

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee I The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; reg...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee III The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; r...

   [Following the list of speakers in the Subsidiary Body 2 meeting (private)]. At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. 10th Plenary meeting The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; meas...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee I The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; re...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee II The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; re...

At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Plenary The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; regional disa...

   At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee III The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and secur...

  At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee I The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; r...

  At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee III The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; r...

 At the 2026 NPT Review Conference (27 April - 22 May), States parties will examine the implementation of the Treaty's provisions since 2022, noting that, despite intensive consultations, the 2015 Review Conference and the 2022 Review Conference were not able to reach agreement on the substantive part of the draft Final Document. Main Committee I The Eleventh Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) will be held at United Nations Headquarters in New York, from 27 April to 22 May 2026. The President-designate of the Eleventh Review Conference is Ambassador Do Hung Viet of Viet Nam. The 2026 NPT Review Conference is expected to consider a range of issues, including the universality of the Treaty; nuclear disarmament, including specific practical measures; nuclear non-proliferation, including the promotion and strengthening of safeguards; measures to advance the peaceful uses of nuclear energy, including safety and security; re...