| 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 | 04-06-1998 (S) | 04-06-1998 | ||||
| Austria | 13-11-1958 (S) | 13-11-1958 | ||||
| Belgium | 15-12-1956 | 07-09-1961 (R) | 07-09-1961 | |||
| Bulgaria | 11-05-1995 | |||||
| Croatia | 11-10-1997 | 11-10-1997 (R) | 11-10-1997 | |||
| Cyprus | 16-12-1961 | 30-11-1967 (R) | 30-11-1967 | |||
| Czech Republic | 28-04-1995 | 30-05-1995 (R) | 30-05-1995 | |||
| Denmark | 15-12-1956 (S) | 15-12-1956 | ||||
| Finland | 16-11-1989 | 11-12-1989 (R) | 11-12-1989 | |||
| France | 15-12-1956 | 10-03-1978 (R) | 10-03-1978 | |||
| Germany | 15-12-1956 | 07-07-1960 (R) | 07-07-1960 | |||
| Greece | 15-12-1956 | 02-02-1961 (R) | 02-02-1961 | |||
| Hungary | 09-02-1993 | 12-01-1996 (R) | 12-01-1996 | |||
| Iceland | 15-12-1956 (S) | 15-12-1956 | ||||
| Ireland | 21-09-1967 | 21-09-1967 (R) | 21-09-1967 | |||
| Italy | 15-12-1956 | 04-06-1958 (R) | 04-06-1958 | |||
| Latvia | 15-01-1998 (S) | 15-01-1998 | ||||
| Liechtenstein | 16-05-1979 | 11-12-1979 (R) | 11-12-1979 | |||
| Luxembourg | 15-12-1956 | 08-01-1960 (R) | 08-01-1960 | |||
| Malta | 12-12-1966 | 06-05-1969 (R) | 06-05-1969 | |||
| Netherlands, the Kingdom of the | 29-04-1957 (S) | 29-04-1957 | ||||
| Norway | 15-12-1956 (S) | 15-12-1956 | ||||
| Poland | 16-03-1993 | 22-04-1993 (R) | 22-04-1993 | |||
| Portugal | 27-04-1978 | 06-07-1982 (R) | 06-07-1982 | |||
| Romania | 04-10-1994 (S) | 04-10-1994 | ||||
| Russian Federation | 28-02-1996 (S) | 28-02-1996 | ||||
| San Marino | 01-03-1989 | 22-03-1989 (R) | 22-03-1989 | |||
| Slovakia | 05-12-1996 | 15-07-1997 (R) | 15-07-1997 | |||
| Slovenia | 27-05-1994 | 08-11-1994 (R) | 08-11-1994 | |||
| Spain | 23-07-1987 | 23-06-1989 (R) | 23-06-1989 | |||
| Sweden | 15-12-1956 (S) | 15-12-1956 | ||||
| Switzerland | 15-04-1964 | 29-11-1965 (R) | 29-11-1965 | |||
| Türkiye | 25-09-1957 | 07-01-1960 (R) | 07-01-1960 | |||
| United Kingdom | 15-12-1956 | 08-07-1958 (R) | 08-07-1958 |