Action 2866

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Membership Information for: Convention On The Prohibition Of Military Or Any Other Hostile Use Of Environmental Modification Techniques

Signed: 1977-05-18; Entered into force: 1978-10-05; Terminated:
Source for membership data: http://disarmament.un.org/treaties/t/enmod
Date of last download from source: 2023-05-17
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 United Nations Department of Disarmament Affairs website. For inaccuracies, please notify the Project Director.
Agreement Action Country Year Month Day Edit link
Signature Australia 1978 5 31
Signature Belarus (Soviet period) 1977 5 18
Signature Belgium 1977 5 18
Signature Benin 1977 6 10
Signature Bolivia 1977 5 18
Signature Brazil 1977 11 9
Signature Bulgaria 1977 5 18
Signature Canada 1977 5 18
Signature Congo, Democratic Republic of 1978 2 28
Signature Cuba 1977 9 23
Signature Cyprus 1977 10 7
Signature Czechia 1977 5 18
Signature Denmark 1977 5 18
Signature Ethiopia 1977 5 18
Signature Finland 1977 5 18
Signature Germany, Former GDR 1977 5 18
Signature Ghana 1978 3 21
Signature Holy See 1977 5 27
Signature Hungary 1977 5 18
Signature Iceland 1977 5 18
Signature India 1977 12 15
Signature Iran 1977 5 18
Signature Iraq 1977 8 15
Signature Ireland 1977 5 18
Signature Italy 1977 5 18
Signature Laos 1978 4 13
Signature Lebanon 1977 5 18
Signature Liberia 1977 5 18
Signature Luxembourg 1977 5 18
Signature Mongolia 1977 5 18
Signature Morocco 1977 5 18
Signature Netherlands 1977 5 18
Signature Nicaragua 1977 8 11
Signature Norway 1977 5 18
Signature Poland 1977 5 18
Signature Portugal 1977 5 18
Signature Romania 1977 5 18
Signature Russian Federation 1977 5 18
Signature Sierra Leone 1978 4 12
Signature Spain 1977 5 18
Signature Sri Lanka 1977 6 8
Signature Syria 1977 8 4
Signature Tunisia 1978 5 11
Signature Türkiye 1977 5 18
Signature Uganda 1977 5 18
Signature Ukraine (Soviet period) 1977 5 18
Signature United Kingdom 1977 5 18
Signature United States 1977 5 18
Signature Viet Nam 1977 5 18
Signature Yemen, Arab Republic 1977 5 18
Ratification, Accession, Succession, or Similar Afghanistan 1985 10 22
Ratification, Accession, Succession, or Similar Algeria 1991 12 19
Ratification, Accession, Succession, or Similar Antigua and Barbuda 1988 10 25
Ratification, Accession, Succession, or Similar Argentina 1987 3 20
Ratification, Accession, Succession, or Similar Armenia 2002 5 15
Ratification, Accession, Succession, or Similar Australia 1984 9 7
Ratification, Accession, Succession, or Similar Austria 1990 1 17
Ratification, Accession, Succession, or Similar Bangladesh 1979 10 3
Ratification, Accession, Succession, or Similar Belarus (Soviet period) 1978 6 7
Ratification, Accession, Succession, or Similar Belgium 1982 7 12
Ratification, Accession, Succession, or Similar Benin 1986 6 30
Ratification, Accession, Succession, or Similar Brazil 1984 10 12
Ratification, Accession, Succession, or Similar Bulgaria 1978 5 31
Ratification, Accession, Succession, or Similar Cameroon 2011 4 18
Ratification, Accession, Succession, or Similar Canada 1981 6 11
Ratification, Accession, Succession, or Similar Cape Verde 1979 10 3
Ratification, Accession, Succession, or Similar Chile 1994 4 26
Ratification, Accession, Succession, or Similar China 2005 6 8
Ratification, Accession, Succession, or Similar Costa Rica 1996 2 7
Ratification, Accession, Succession, or Similar Cuba 1978 4 10
Ratification, Accession, Succession, or Similar Cyprus 1978 4 12
Ratification, Accession, Succession, or Similar Czechia 1978 5 12
Ratification, Accession, Succession, or Similar Denmark 1978 4 19
Ratification, Accession, Succession, or Similar Dominica 1992 11 9
Ratification, Accession, Succession, or Similar Egypt 1982 4 1
Ratification, Accession, Succession, or Similar Estonia 2011 4 14
Ratification, Accession, Succession, or Similar Finland 1978 5 12
Ratification, Accession, Succession, or Similar Germany 1983 5 24
Ratification, Accession, Succession, or Similar Germany, Former GDR 1978 5 25
Ratification, Accession, Succession, or Similar Ghana 1978 6 22
Ratification, Accession, Succession, or Similar Greece 1983 8 23
Ratification, Accession, Succession, or Similar Guatemala 1988 3 21
Ratification, Accession, Succession, or Similar Honduras 2010 8 16
Ratification, Accession, Succession, or Similar Hungary 1978 4 19
Ratification, Accession, Succession, or Similar India 1978 12 15
Ratification, Accession, Succession, or Similar Ireland 1982 12 16
Ratification, Accession, Succession, or Similar Italy 1981 11 27
Ratification, Accession, Succession, or Similar Japan 1982 6 9
Ratification, Accession, Succession, or Similar Kazakhstan 2005 4 25
Ratification, Accession, Succession, or Similar Korea, Democratic People's Republic 1984 11 8
Ratification, Accession, Succession, or Similar Korea, Republic of 1986 12 2
Ratification, Accession, Succession, or Similar Kuwait 1980 1 2
Ratification, Accession, Succession, or Similar Kyrgyzstan 2015 6 15
Ratification, Accession, Succession, or Similar Laos 1978 10 5
Ratification, Accession, Succession, or Similar Lithuania 2002 4 16
Ratification, Accession, Succession, or Similar Malawi 1978 10 5
Ratification, Accession, Succession, or Similar Mauritius 1992 12 9
Ratification, Accession, Succession, or Similar Mongolia 1978 5 19
Ratification, Accession, Succession, or Similar Netherlands 1983 4 15
Ratification, Accession, Succession, or Similar New Zealand 1984 9 7

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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).