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List of parties to the Partial Nuclear Test Ban Treaty

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List of parties to the Partial Nuclear Test Ban Treaty
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The list of parties to the Partial Test Ban Treaty encompasses the states who have signed and ratified or acceded to the international agreement prohibiting all test detonations of nuclear weapons except underground.

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Participation in the Partial Test Ban Treaty
  Signed and ratified
  Acceded or succeeded
  Only signed
  Non-signatory

On August 5, 1963, the Partial Test Ban Treaty (PTBT) was opened for signature. The principal state authors (the Soviet Union, the United Kingdom, and the United States) signed the treaty that day. The PTBT came into force and closed for signature on October 10, 1963 with the ratification by the three principal states. Since then, states that did not sign the treaty can now only accede or succeed to it.

As of October 2018, 125 UN member states have ratified or acceded to the treaty, most recently Montenegro on 3 June 2006.[1] In addition, the Republic of China (Taiwan), which is currently only recognized by 11 UN member states, ratified the treaty prior to the United Nations General Assembly's vote to transfer China's seat to the People's Republic of China (PRC) in 1971.[2] A further 10 states have signed but not ratified the treaty. The instrument of ratification, accession, or succession is deposited at the respective capitals of the principal states of the treaty: Moscow, London, and Washington, D.C.

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Ratified or acceded states

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Multiple dates indicate the different days in which states submitted their signature or deposition, which varied by location. This location is noted by: (L) for London, (M) for Moscow, and (W) for Washington.

More information Signed, Deposited ...
Notes
  1. [a]
    Montenegro's effective date of succession was 3 June 2006.[6]
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Partially recognized state abiding by treaty

The Republic of China (Taiwan), which is currently only recognized by 11 UN member states, ratified the treaty prior to the United Nations General Assembly's vote to transfer China's seat to the People's Republic of China (PRC) in 1971. The ROC has committed itself to continue to adhere to the requirements of the treaty, and the United States has declared that they still consider them to be "bound by its obligations".[2]

More information State, Signed ...
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Signatory states

The following ten states have signed but not ratified the treaty.

More information State, Signed ...

Non-signatory states

The remaining UN member states and UN observer states, which have not signed the treaty, are:

  1. [a]
    Signed by the Republic of Vietnam on 1 October 1963, but following the victory by the Democratic Republic of Vietnam in the Vietnam War, the reunified Socialist Republic of Vietnam renounced all treaty actions performed by the Republic of Vietnam.[4]
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See also

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References

External links

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