Treaty on the Prohibition of Nuclear Weapons (TPNW or Nuclear Weapon Ban Treaty)
Ongoing

Aims to prohibit all nuclear weapon activities, including the development, testing, production, acquisition, possession, stockpiling, use, or threats to use nuclear weapons.

 

Adopted: 7 July 2017

Opened for signature: 20 September 2017

Entered into force: 22 January 2021

Signatures: 86

Parties: 54 (see table below)

 

More information, including the text of the Treaty on the Prohibition of Nuclear Weapons is available here.

The current status of the Treaty on the Prohibition of Nuclear Weapons is available here.

The following article related to the Treaty on the Prohibition of Nuclear Weapons was published in the Nuclear Law Bulletin:

  • In search of the elusive conflict: The (in-)compatibility of the Treaties on the Non-Proliferation and Prohibition of Nuclear Weapons, by M.J. Moffatt (NLB 102, p. 7).

 

Contracting Parties to the Treaty on the Prohibition of Nuclear Weapons
Antigua and Barbuda El Salvador Malta Saint Lucia
Austria Fiji Mexico* Saint Vincent and the Grenadines
Bangladesh Gambia Namibia Samoa
Belize Guyana Nauru San Marino
Benin Holy See New Zealand South Africa
Bolivia Honduras Nicaragua Thailand
Botswana Ireland Nigeria Trinidad and Tobago
Cambodia Jamaica Niue Tuvalu
Comoros Kazakhstan Palau Uruguay
Cook Islands Kiribati Palestinian Authority Vanuatu
Costa Rica Lao People's Democratic Republic Panama Venezuela
Cuba Lesotho Paraguay Viet Nam
Dominica Malaysia Philippines  
Ecuador Maldives Saint Kitts and Nevis  

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