| 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 | 01-09-1965 (A) | 01-10-1965 | ||||
| Belgium | 26-09-1957 | 13-05-1966 (R) | 12-06-1966 | |||
| France | 26-09-1957 | 22-01-1959 (R) | 03-01-1960 | |||
| Germany | 26-09-1957 | 24-11-1961 (R) | 24-12-1961 | |||
| Italy | 07-11-1968 (A) | 07-12-1968 | ||||
| Luxembourg | 26-09-1957 | 13-06-1960 (R) | 13-07-1960 | |||
| Netherlands, the Kingdom of the | 26-09-1957 | 04-12-1959 (R) | 03-01-1960 | |||
| Portugal | 28-01-1982 (A) | 27-02-1982 | ||||
| Switzerland | 26-09-1957 | 01-11-1960 (R) | 01-12-1960 | |||
| Türkiye | 26-09-1957 | 12-02-1963 (R) | 14-03-1963 |