| 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 |
|---|---|---|---|---|---|---|
| Albania | 03-12-2025 | |||||
| Armenia | 11-05-2001 | |||||
| Belgium | 20-04-1959 (S) | 04-09-1960 | ||||
| Cyprus | 07-04-1978 | |||||
| Czech Republic | 09-03-1999 (S) | 10-04-1999 | ||||
| Denmark | 30-11-1960 (S) | 01-01-1961 | ||||
| Finland | 04-07-1990 | 04-07-1990 (R) | 05-08-1990 | |||
| France | 20-04-1959 (S) | 04-09-1960 | ||||
| Germany | 20-04-1959 | 06-11-1961 (R) | 07-12-1961 | |||
| Hungary | 16-06-2009 | 06-11-2009 (R) | 07-12-2009 | |||
| Iceland | 08-09-1966 | 08-09-1966 (R) | 09-10-1966 | |||
| Ireland | 29-10-1969 (S) | 30-11-1969 | ||||
| Italy | 04-12-1963 | 01-06-1965 (R) | 02-07-1965 | |||
| Liechtenstein | 28-10-1969 (A) | 29-11-1969 | ||||
| Luxembourg | 20-04-1959 | 24-04-1961 (R) | 25-05-1961 | |||
| Malta | 17-01-1989 (S) | 18-02-1989 | ||||
| Netherlands, the Kingdom of the | 04-06-1959 | 03-08-1960 (R) | 04-09-1960 | |||
| Norway | 25-11-1960 (S) | 01-01-1961 | ||||
| Poland | 19-05-2004 | 20-04-2005 (R) | 21-05-2005 | |||
| Portugal | 10-05-1979 | 12-10-1981 (R) | 13-11-1981 | |||
| Romania | 05-11-1999 | 24-04-2001 (R) | 25-05-2001 | |||
| Slovakia | 03-06-2004 | 27-01-2005 (R) | 28-02-2005 | |||
| Spain | 10-03-1982 | 30-06-1982 (R) | 31-07-1982 | |||
| Sweden | 30-11-1960 (S) | 01-01-1961 | ||||
| Switzerland | 29-11-1965 | 20-12-1966 (R) | 21-01-1967 | |||
| United Kingdom | 26-08-1968 (S) | 27-09-1968 |
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