| 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 |
|---|---|---|---|---|---|---|
| Austria | 22-07-1963 | 29-10-1969 (R) | 28-11-1969 | |||
| Belgium | 18-10-1961 | 16-10-1990 (R) | 15-11-1990 | |||
| Croatia | 08-03-1999 | 26-02-2003 (R) | 28-03-2003 | |||
| Cyprus | 22-05-1967 | 07-03-1968 (R) | 06-04-1968 | |||
| Czech Republic | 27-05-1992 | 03-11-1999 (R) | 03-12-1999 | |||
| Denmark | 18-10-1961 | 03-03-1965 (R) | 02-04-1965 | |||
| Finland | 09-02-1990 | 29-04-1991 (R) | 29-05-1991 | |||
| France | 18-10-1961 | 09-03-1973 (R) | 08-04-1973 | |||
| Germany | 18-10-1961 | 27-01-1965 (R) | 26-02-1965 | |||
| Greece | 18-10-1961 | 06-06-1984 (R) | 06-07-1984 | |||
| Hungary | 13-12-1991 | 08-07-1999 (R) | 07-08-1999 | |||
| Iceland | 15-01-1976 | 15-01-1976 (R) | 14-02-1976 | |||
| Ireland | 18-10-1961 | 07-10-1964 (R) | 26-02-1965 | |||
| Italy | 18-10-1961 | 22-10-1965 (R) | 21-11-1965 | |||
| Latvia | 29-05-1997 | 31-01-2002 (R) | 02-03-2002 | |||
| Liechtenstein | 09-10-1991 | |||||
| Luxembourg | 18-10-1961 | 10-10-1991 (R) | 09-11-1991 | |||
| Malta | 26-05-1988 | 04-10-1988 (R) | 03-11-1988 | |||
| Netherlands, the Kingdom of the | 18-10-1961 | 22-04-1980 (R) | 22-05-1980 | |||
| North Macedonia | 05-05-1998 | 31-03-2005 (R) | 30-04-2005 | |||
| Norway | 18-10-1961 | 26-10-1962 (R) | 26-02-1965 | |||
| Poland | 26-11-1991 | 25-06-1997 (R) | 25-07-1997 | |||
| Portugal | 01-06-1982 | 30-09-1991 (R) | 30-10-1991 | |||
| Romania | 04-10-1994 | |||||
| Slovakia | 27-05-1992 | 22-06-1998 (R) | 21-07-1998 | |||
| Slovenia | 11-10-1997 | |||||
| Spain | 27-04-1978 | 06-05-1980 (R) | 05-06-1980 | |||
| Sweden | 18-10-1961 | 17-12-1962 (R) | 26-02-1965 | |||
| Switzerland | 06-05-1976 | |||||
| Türkiye | 18-10-1961 | 24-11-1989 (R) | 24-12-1989 | |||
| Ukraine | 02-05-1996 | |||||
| United Kingdom | 18-10-1961 | 11-07-1962 (R) | 26-02-1965 |