| Party | Signature | Provisional application |
RatificationS=Signature without reservation or requirement of ratification R=Ratification, Acceptance, Approval or Notification A=Accession Su=Succession NK=Not Known | Entry into force | Renunciation | Termination |
|---|---|---|---|---|---|---|
| Belgium | 21-09-1960 | 20-10-1961 (R) | 19-11-1961 | |||
| Bulgaria | 22-10-2004 (A) | 21-11-2004 | ||||
| Canada | 21-09-1960 | 02-08-1972 (R) | 01-09-1972 | |||
| Czech Republic | 11-10-2000 (A) | 10-11-2000 | ||||
| Denmark | 21-09-1960 | 15-11-1961 (R) | 15-12-1961 | |||
| Finland | 28-03-2024 (R) | 27-04-2024 | ||||
| France | 21-09-1960 | 18-01-1965 (R) | 17-02-1965 | |||
| Germany | 21-09-1960 | 06-01-1964 (R) | 05-02-1964 | |||
| Greece | 21-09-1960 | 15-08-1963 (R) | 14-09-1963 | |||
| Hungary | 21-01-2000 (A) | 20-02-2000 | ||||
| Italy | 21-09-1960 | 25-07-1974 (R) | 24-08-1974 | |||
| Latvia | 17-02-2005 (A) | 19-03-2005 | ||||
| Lithuania | 22-09-2004 (A) | 22-10-2004 | ||||
| Luxembourg | 21-09-1960 | 01-02-1967 (R) | 03-03-1967 | |||
| Netherlands, the Kingdom of the | 21-09-1960 | 08-09-1971 (R) | 08-10-1971 | |||
| North Macedonia | 20-10-2021 (A) | 19-11-2021 | ||||
| Norway | 21-09-1960 | 13-12-1960 (R) | 12-01-1961 | |||
| Poland | 21-09-1999 (A) | 21-10-1999 | ||||
| Portugal | 21-09-1960 | 11-05-1965 (R) | 10-06-1965 | |||
| Romania | 04-08-2005 (A) | 03-09-2005 | ||||
| Slovakia | 13-09-2004 (A) | 13-10-2004 | ||||
| Slovenia | 28-09-2004 (A) | 28-10-2004 | ||||
| Spain | 10-08-1987 (A) | 09-09-1987 | ||||
| Türkiye | 21-09-1960 | 20-02-1962 (R) | 22-03-1962 | |||
| United Kingdom | 21-09-1960 | 13-10-1961 (R) | 12-11-1961 | |||
| United States of America | 21-09-1960 | 08-12-1960 (R) | 12-01-1961 |
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