| 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 |
|---|---|---|---|---|---|---|
| Belgium | 28-08-1952 | 11-03-1954 (R) | 10-04-1954 | |||
| Bulgaria | 04-10-2004 (A) | 03-11-2004 | ||||
| Canada | 28-08-1952 | 23-08-2023 (R) | 22-09-2023 | |||
| Czech Republic | 31-10-2000 (A) | 30-11-2000 | ||||
| Denmark | 28-08-1952 | 28-05-1955 (R) | 27-06-1955 | |||
| Estonia | 26-11-2004 (A) | 26-12-2004 | ||||
| Finland | 28-03-2024 (A) | 27-04-2024 | ||||
| France | 28-08-1952 | 20-01-1955 (R) | 19-02-1955 | 30-03-1966 | 31-03-1967 | |
| Germany | 21-11-1969 (A) | 21-12-1969 | ||||
| Greece | 28-08-1952 | 26-07-1954 (R) | 25-08-1954 | |||
| Hungary | 21-01-2000 (A) | 20-02-2000 | ||||
| Iceland | 28-08-1952 | 11-05-1953 (R) | 10-04-1954 | |||
| Italy | 28-08-1952 | 22-12-1955 (R) | 21-01-1956 | |||
| Latvia | 02-08-2004 (A) | 01-09-2004 | ||||
| Lithuania | 21-07-2004 (A) | 20-08-2004 | ||||
| Luxembourg | 28-08-1952 | 23-07-1954 (R) | 22-08-1954 | |||
| Netherlands, the Kingdom of the | 28-08-1952 | 22-06-1954 (R) | 22-07-1954 | |||
| North Macedonia | 23-11-2020 (A) | 23-12-2020 | ||||
| Norway | 28-08-1952 | 24-02-1953 (R) | 10-04-1954 | |||
| Poland | 21-09-1999 (A) | 21-10-1999 | ||||
| Portugal | 28-08-1952 | 22-11-1955 (R) | 22-12-1955 | |||
| Romania | 04-11-2004 (A) | 04-12-2004 | ||||
| Slovakia | 13-09-2004 (A) | 13-10-2004 | ||||
| Slovenia | 28-09-2004 (A) | 28-10-2004 | ||||
| Sweden | 03-07-2024 (A) | 02-08-2024 | ||||
| Türkiye | 28-08-1952 | 18-05-1954 (R) | 17-06-1954 | |||
| United Kingdom | 28-08-1952 | 03-08-1965 (R) | 02-09-1965 | |||
| United States of America | 28-08-1952 | 24-07-1953 (R) | 10-04-1954 |
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