This page lists former Member States of UNIDO including their date of membership and date of withdrawal from the Organization.
Pursuant to article 6 of the Constitution of UNIDO, withdrawal from the Organization shall take effect on the last day of the fiscal year following that during which the instrument of denunciation was deposited. The dates here are the dates on which the respective withdrawals became effective for the denunciating States.
| Member State | Date of membership | Date of withdrawal |
|---|---|---|
| Australia | 21-Jun-1985 | 31-Dec-1997 |
| Belgium | 21-Jun-1985 | 31-Dec-2015 |
| Canada | 21-Jun-1985 | 31-Dec-1993 |
| Denmark | 21-Jun-1985 | 31-Dec-2016 |
| France | 21-Jun-1985 | 31-Dec-2014 |
| Greece | 21-Jun-1985 | 31-Dec-2016 |
| Lithuania | 17-Oct-1991 | 31-Dec-2012 |
| New Zealand | 19-Jul-1985 | 31-Dec-2013 |
| Portugal | 21-Jun-1985 | 31-Dec-2014 |
| United Kingdom of Great Britain and Northern Ireland | 21-Jun-1985 | 31-Dec-2012 |
| United States of America | 21-Jun-1985 | 31-Dec-1996 |
Source: United Nations Treaty Collection