Action 3149

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Membership Information for: Convention On The Prohibition Of The Development, Production, Stockpiling And Use Of Chemical Weapons And On Their Destruction

Signed: 1993-01-13; Entered into force: 1997-04-29; Terminated:
Source for membership data: http://disarmament.un.org/treaties/t/cwc
Date of last download from source: 2023-05-09
This is the IEADB's most current data on signature, ratification, entry into force, and other membership actions. The IEADB updates this data approximately once a year and tries to ensure it is current and accurate. For the most current data, visit the Organisation for the Prohibition of Chemical Weapons website. For inaccuracies, please notify the Project Director.
Agreement Action Country Year Month Day Edit link
Entry Into Force Suriname 1997 4 29
Entry Into Force Sweden 1997 4 29
Entry Into Force Switzerland 1997 4 29
Entry Into Force Syria 2013 9 14
Entry Into Force Tajikistan 1997 4 29
Entry Into Force Tanzania 1998 6 25
Entry Into Force Thailand 2002 12 10
Entry Into Force Timor-Leste 2003 5 7
Entry Into Force Togo 1997 4 29
Entry Into Force Tonga 2003 5 29
Entry Into Force Trinidad and Tobago 1997 6 24
Entry Into Force Tunisia 1997 4 29
Entry Into Force Türkiye 1997 5 12
Entry Into Force Turkmenistan 1997 4 29
Entry Into Force Tuvalu 2004 1 19
Entry Into Force Uganda 2001 11 30
Entry Into Force Ukraine 1998 10 16
Entry Into Force United Arab Emirates 2000 11 28
Entry Into Force United Kingdom 1997 4 29
Entry Into Force United States 1997 4 29
Entry Into Force Uruguay 1997 4 29
Entry Into Force Uzbekistan 1997 4 29
Entry Into Force Vanuatu 2005 9 16
Entry Into Force Venezuela 1997 12 3
Entry Into Force Viet Nam 1998 9 30
Entry Into Force Yemen 2000 10 2
Entry Into Force Zambia 2001 2 9
Entry Into Force Zimbabwe 1997 4 29

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Membership status is coded as follows:

  • Countries listed are those that have signed and/or ratified the IEA in question.
  • Legend:
    • 0 (pink): Signer: country signed but did not ratify IEA. Status is 0 for all countries until IEA enters into force.
    • 1 (yellow): Ratifier: country signed and ratified IEA but IEA had not entered into force. Status is 1 for countries that have ratified until IEA enters into force.
    • 2 (green):Member: country signed and ratified IEA and IEA has entered into force for that country.
    • Ratifier row is count of states that have ratified.
    • Membership row is count (not sum) of members.
  • If membership data source lacks entry into force date, membership is inferred from year of ratification, if that year occurs after entry into force year of IEA.
  • Status can return to 0 if an IEA is terminated or if a country withdraws. In rare cases, countries later re-join IEAs, with their status returning to 2.
  • Action tab: membership by Action, Country, Year, Month, Day.
  • Wide tab: Annual status data (countries as rows, years as columns).
  • Long tab: Annual status data in Stata format (Country, Year, Membership Status).