Progress towards ratification

The countries below have publicly stated that they are in the process of becoming parties to the Treaty on the Prohibition of Nuclear Weapons. The treaty will enter into force once 50 states have ratified or acceded to it.


  • Bolivia: The draft law for ratification of the treaty was submitted to the legislative assembly on 17 December 2018.
  • Botswana: “We look forward to becoming a state party to this treaty in the near future, once internal consultations are concluded.” (17 October 2018)
  • Brazil: “[Brazil] is honoured to have been the first country to sign. Our ratification process is under way.” (10 October 2018)
  • Cambodia: Cambodia indicated in April 2019 that it will take the necessary steps to ratify the TPNW.
  • Central African Republic: “The internal procedure for ratifying the [TPNW] is in progress.” (12 October 2018)
  • Democratic Republic of the Congo: “The government is currently working on its ratification.” (16 October 2018)
  • Ecuador: The national assembly of Ecuador unanimously approved ratification of the TPNW in April 2019.
  • Ghana: Ghana indicated in May 2019 that “internal mechanisms are well advanced” towards ratification of the TPNW.
  • Grenada: “The cabinet of ministers has recently approved the signing of the Treaty on the Prohibition of Nuclear Weapons.” (23 September 2017)
  • Guatemala: Guatemala indicated in April 2019 that it hopes to ratify the TPNW soon.
  • Honduras: Honduras indicated in May 2019 that it is in the process of ratifying the TPNW.
  • Ireland: Ireland indicated in May 2019 that it intends to ratify the TPNW “imminently”.
  • Jamaica: “Jamaica is pleased to have signed the treaty in December of 2017 and, like others, will continue our efforts towards ratification as soon as possible, in order to support its entry into force.” (12 October 2018)
  • Kazakhstan: The lower house of the Kazakh parliament approved ratification of the TPNW in May 2019.
  • Laos: “The Lao PDR signed this important treaty in September last year and is now going through internal process for its ratification.” (19 October 2018)
  • Malawi: “Malawi is fully committed to the treaty and is looking forward to ratifying it with an intention to become a state party to the treaty as soon as possible.” (12 October 2018)
  • Nepal: “The national parliamentary process is under way for [the TPNW’s] early ratification.” (22 October 2018)
  • Paraguay: “The Paraguayan delegation was one of the first signatories to the Treaty on the Prohibition of Nuclear Weapons, currently under legislative review constitutional procedures prior to its eventual approval and ratification.” (19 October 2018)
  • Philippines: “The Philippines also champions the Treaty on the Prohibition of Nuclear Weapons, or ban treaty – a positive step towards nuclear disarmament – and thus we are working towards its ratification.” (22 October 2018)
  • Sudan: “We would like to renew our support for the Treaty on the Prohibition of Nuclear Weapons, which we took part in drafting and voting on, and we look forward to signing and ratifying this treaty very soon.” (22 October 2018)
  • Tanzania: Tanzania indicated in April 2019 that it is “in the process” of signing and ratifying the TPNW.
  • Trinidad and Tobago: “Trinidad and Tobago were pleased to be among the states that supported this historic treaty and we are working diligently to sign and ratify in short order.” (15 October 2018)


Last updated: 16 May 2019

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  • aiweiwei

    “Let’s act up! Ban nuclear weapons completely and unconditionally.”

    Ai Weiwei Artist and activist

  • sheen

    “If Gandhi and Martin Luther King Jr were alive today, they would be part of ICAN.”

    Martin Sheen Actor and activist

  • bankimoon

    “I salute ICAN for working with such commitment and creativity.”

    Ban Ki-moon Former UN chief

  • yokoono

    “We can do it together. With your help, our voice will be made still stronger. Imagine peace.”

    Yoko Ono Artist

  • jodywilliams

    “Governments say a nuclear weapons ban is unlikely. Don’t believe it. They said the same about a mine ban treaty.”

    Jody Williams Nobel laureate

  • desmondtutu

    “With your support, we can take ICAN its full distance – all the way to zero nuclear weapons.”

    Desmond Tutu Nobel laureate

  • herbiehancock

    “Because I cannot tolerate these appalling weapons, I whole-heartedly support ICAN.”

    Herbie Hancock Jazz musician

  • dalailama

    “I can imagine a world without nuclear weapons, and I support ICAN.”

    Dalai Lama Nobel laureate