| On 14 December 1960, 20 countries originally signed the Convention on the Organisation for Economic Co-operation and Development. Since then, 18 countries have become members of the Organisation. |
|
Here is a list of the current Member countries of the Organisation and the dates on which they deposited their instruments of ratification. Click on the name of the country to consult OECD work on that particular country. |
|
Country |
Date
|
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| AUSTRALIA |
7 June 1971 |
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| AUSTRIA |
29 September 1961 |
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| BELGIUM |
13 September 1961 |
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| CANADA |
10 April 1961 |
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| CHILE |
7 May 2010 |
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| COLOMBIA |
28 April 2020 |
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| COSTA RICA |
25 May 2021 |
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| CZECH REPUBLIC |
21 December 1995 |
||
| DENMARK |
30 May 1961 |
||
| ESTONIA |
9 December 2010 |
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| FINLAND |
28 January 1969 |
||
| FRANCE |
7 August 1961 |
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| GERMANY |
27 September 1961 |
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| GREECE |
27 September 1961 |
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| HUNGARY |
7 May 1996 |
||
| ICELAND |
5 June 1961 |
||
| IRELAND |
17 August 1961 |
||
| ISRAEL |
7 September 2010 |
||
| ITALY |
29 March 1962 |
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| JAPAN |
28 April 1964 |
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| KOREA |
12 December 1996 |
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| LATVIA |
1 July 2016 |
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| LITHUANIA |
5 July 2018 |
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| LUXEMBOURG |
7 December 1961 |
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| MEXICO |
18 May 1994 |
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| NETHERLANDS |
13 November 1961 |
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| NEW ZEALAND |
29 May 1973 |
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| NORWAY |
4 July 1961 |
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| POLAND |
22 November 1996 |
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| PORTUGAL |
4 August 1961 |
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| SLOVAK REPUBLIC |
14 December 2000 |
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| SLOVENIA |
21 July 2010 |
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| SPAIN |
3 August 1961 |
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| SWEDEN |
28 September 1961 |
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| SWITZERLAND |
28 September 1961 |
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| TÜRKIYE |
2 August 1961 |
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| UNITED KINGDOM |
2 May 1961 |
||
| UNITED STATES |
12 April 1961 |
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