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Treaty on the Non-Proliferation of Nuclear Weapons

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Explore the timeline of the Treaty on the Non-Proliferation of Nuclear Weapons, highlighting key events and milestones in nuclear disarmament.

10Events
55Years
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2010
2020
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27April
2020
27 Apr 2020

Postponement of the 2020 NPT Review Conference

The 2020 Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons was postponed due to the COVID-19 pandemic. Originally scheduled to take place in New York, the conference was rescheduled to ensure the safety of participants and to allow for meaningful discussions on the treaty's future.

22May
2015
22 May 2015

2015 NPT Review Conference Ends Without Agreement

The 2015 Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons ended without reaching a consensus on a final document. Key issues included disagreements over the establishment of a Middle East zone free of nuclear weapons, highlighting ongoing challenges in the treaty's implementation.

28May
2010
28 May 2010

2010 NPT Review Conference Achieves Consensus

The 2010 Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons concluded with a consensus on a final document. This document included a 64-point action plan addressing nuclear disarmament, non-proliferation, and the peaceful use of nuclear energy, marking a significant achievement for the treaty.

27May
2005
27 May 2005

2005 NPT Review Conference Ends Without Agreement

The 2005 Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons ended without a consensus on a final document. The conference highlighted divisions among member states on issues such as disarmament and non-proliferation, reflecting the challenges in achieving global nuclear disarmament.

20May
2000
20 May 2000

2000 NPT Review Conference

The 2000 Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons concluded with the adoption of a final document that included 13 practical steps for systematic and progressive efforts to implement Article VI of the treaty, which calls for nuclear disarmament.

11May
1995
11 May 1995

Indefinite Extension of the NPT

In 1995, the Treaty on the Non-Proliferation of Nuclear Weapons was extended indefinitely. This decision was made during the Review and Extension Conference held in New York, reflecting the international community's commitment to the treaty's goals of preventing nuclear proliferation and promoting disarmament.

12May
1975
12 May 1975

First Review Conference of the NPT

The first Review Conference of the Treaty on the Non-Proliferation of Nuclear Weapons was held in Geneva. This conference was designed to assess the implementation of the treaty and to address any issues that had arisen since its entry into force. It set a precedent for future review conferences.

05March
1970
05 Mar 1970

Entry into Force of the NPT

The Treaty on the Non-Proliferation of Nuclear Weapons officially entered into force on March 5, 1970. This marked the beginning of a new era in nuclear disarmament and non-proliferation, as the treaty established a framework for preventing the spread of nuclear weapons and promoting disarmament.

01July
1968
01 Jul 1968

Signing of the Treaty on the Non-Proliferation of Nuclear Weapons

The Treaty on the Non-Proliferation of Nuclear Weapons (NPT) was opened for signature on July 1, 1968, in Washington, London, and Moscow. It was signed by 62 countries, marking a significant step in international efforts to prevent the spread of nuclear weapons and promote peaceful uses of nuclear energy.

17August
1965
17 Aug 1965

First Draft of the Treaty on the Non-Proliferation of Nuclear Weapons

The first draft of what would become the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) was submitted to the Eighteen Nation Committee on Disarmament in Geneva. This draft laid the groundwork for negotiations among nuclear and non-nuclear states to prevent the spread of nuclear weapons.

Frequently asked questions about Treaty on the Non-Proliferation of Nuclear Weapons

Discover commonly asked questions regarding Treaty on the Non-Proliferation of Nuclear Weapons. If there are any questions we may have overlooked, please let us know.

What has been the legacy or impact of the NPT?

What is the Treaty on the Non-Proliferation of Nuclear Weapons?

Why is the NPT considered significant?

How many countries are parties to the NPT?