Multilateral agreements in nuclear energy

II. Non-proliferation and nuclear security

Treaty on the Non-proliferation of Nuclear Weapons (Non-Proliferation Treaty or NPT)

The NPT aims to prevent the spread of nuclear weapons and weapons technology (non-proliferation), to promote co-operation in the peaceful uses of nuclear energy (peaceful uses) and to further the goal of achieving nuclear disarmament and general and complete disarmament (disarmament).

Adopted: 12 June 1968

Opened for signature: 1 July 1968 (London, Moscow and Washington)

Entered into force: 5 March 1970

Extended indefinitely: 11 May 1995

Parties: 191 (see table below)

More information on the NPT, including the text, is available here.

The current status of the NPT is available here.

The following articles related to the NPT were published in the Nuclear Law Bulletin:

Parties to the Treaty on the Non-proliferation of Nuclear Weapons

Afghanistan Djibouti Liberia Samoa
Albania Dominica Libya San Marino
Algeria Dominican Republic Liechtenstein Sao Tome and Principe
Andorra Ecuador Lithuania Saudi Arabia
Angola Egypt Luxembourg Senegal
Antigua and Barbuda El Salvador Madagascar Serbia
Argentina* Equatorial Guinea Malawi Seychelles
Armenia* Eritrea Malaysia Sierra Leone
Australia Estonia Maldives Singapore
Austria Ethiopia Mali Slovakia*
Azerbaijan Fiji Malta Slovenia*
Bahamas Finland* Marshall Islands Solomon Islands
Bahrain Former Yugoslav Republic of Macedonia Mauritania Somalia
Bangladesh France* Mauritius South Africa*
Barbados Gabon Mexico* Spain*
Belarus Gambia Micronesia Sri Lanka
Belgium* Georgia Moldova State of Palestine
Belize Germany* Monaco Sudan
Benin Ghana Mongolia Suriname
Bhutan Greece Montenegro Swaziland
Bolivia Grenada Morocco Sweden*
Bosnia and Herzegovina Guatemala Mozambique Switzerland*
Botswana Guinea Myanmar Syria
Brazil* Guinea-Bissau Namibia Tajikistan
Brunei Darussalam Guyana Nauru Thailand
Bulgaria* Haiti Nepal Timor-Leste
Burkina Faso Holy See Netherlands* Togo
Burundi Honduras New Zealand Tonga
Cambodia Hungary* Nicaragua Trinidad and Tobago
Cameroon Iceland Niger Tunisia
Canada* Indonesia Nigeria Turkey
Cape Verde Iraq Norway Turkmenistan
Central African Republic Ireland Oman Tuvalu
Chad Iran* Palau Uganda
Chile Italy Panama Ukraine*
China* Jamaica Papua New Guinea United Arab Emirates
Colombia Japan* Paraguay United Kingdom*
Comoros Jordan Peru Tanzania
Congo Kazakhstan Philippines United States*
Costa Rica Kenya Poland Uruguay
Côte d'Ivoire Korea* Portugal Uzbekistan
Croatia Kiribati Qatar Vanuatu
Cuba Kuwait Romania* Venezuela
Cyprus Kyrgyzstan Russia* Vietnam
Czech Republic* Lao People's Democratic Republic Rwanda Yemen
Democratic People's Republic of Korea Latvia Saint Kitts and Nevis Zambia
Democratic Republic of the Congo Lebanon Saint Lucia Zimbabwe
Denmark Lesotho Saint Vincent and the Grenadines  

* Country with at least one nuclear power plant in operation.

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Last reviewed: 17 January 2017