| 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 | 22-01-1974 | 28-10-1975 (R) | 01-12-1975 | |||
| Belgium | 11-10-1973 | 29-07-1975 (R) | 01-11-1975 | |||
| Croatia | 11-11-2015 (A) | 01-01-2016 | ||||
| Denmark | 11-10-1973 | 19-06-1974 (R) | 01-11-1975 | |||
| Estonia | 21-10-2020 (A) | 01-12-2020 | ||||
| Finland | 11-10-1973 | 22-07-1975 (R) | 01-11-1975 | |||
| France | 11-10-1973 | 22-08-1975 (R) | 01-11-1975 | |||
| Germany | 11-10-1973 | 29-09-1975 (R) | 01-11-1975 | |||
| Greece | 11-10-1973 | 20-07-1976 (R) | 01-09-1976 | |||
| Iceland | 19-04-2011 (A) | 01-06-2011 | ||||
| Ireland | 11-10-1973 | 31-01-1975 (R) | 01-11-1975 | |||
| Italy | 11-10-1973 | 31-07-1977 (R) | 01-09-1977 | |||
| Luxembourg | 13-05-2002 (A) | 01-07-2002 | ||||
| Netherlands, the Kingdom of the | 11-10-1973 | 26-09-1974 (R) | 01-11-1975 | |||
| Norway | 29-11-1988 (A) | 01-01-1989 | ||||
| Portugal | 11-10-1973 | 26-11-1975 (R) | 01-01-1976 | |||
| Serbia | 10-11-2014 (A) | 01-01-2015 | ||||
| Slovenia | 26-10-2012 (A) | 01-12-2012 | ||||
| Spain | 11-10-1973 | 21-10-1974 (R) | 01-11-1975 | |||
| Sweden | 11-10-1973 | 14-08-1974 (R) | 01-11-1975 | |||
| Switzerland | 11-10-1973 | 24-04-1974 (R) | 01-11-1975 | |||
| Türkiye | 16-03-1976 (A) | 01-05-1976 | ||||
| United Kingdom | 11-10-1973 | 18-07-1975 (R) | 01-11-1975 | |||
| Yugoslavia (< 25-06-1991) | 11-10-1973 | 02-04-1975 (R) | 01-11-1975 |