| 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 | 01-04-2009 (A) | 01-04-2009 | ||||
| Belgium | 04-04-1949 | 16-06-1949 (R) | 24-08-1949 | |||
| Bulgaria | 29-03-2004 (A) | 29-03-2004 | ||||
| Canada | 04-04-1949 | 03-05-1949 (R) | 24-08-1949 | |||
| Croatia | 01-04-2009 (A) | 01-04-2009 | ||||
| Czech Republic | 12-03-1999 (A) | 12-03-1999 | ||||
| Denmark | 04-04-1949 | 24-08-1949 (R) | 24-08-1949 | |||
| Estonia | 29-03-2004 (A) | 29-03-2004 | ||||
| Finland | 04-04-2023 (A) | 04-04-2023 | ||||
| France | 04-04-1949 | 24-08-1949 (R) | 24-08-1949 | |||
| Germany | 06-05-1955 (A) | 06-05-1955 | ||||
| Greece | 18-02-1952 (A) | 18-02-1952 | ||||
| Hungary | 12-03-1999 (A) | 12-03-1999 | ||||
| Iceland | 04-04-1949 | 01-08-1949 (R) | 24-08-1949 | |||
| Italy | 04-04-1949 | 24-08-1949 (R) | 24-08-1949 | |||
| Latvia | 29-03-2004 (A) | 29-03-2004 | ||||
| Lithuania | 29-03-2004 (A) | 29-03-2004 | ||||
| Luxembourg | 04-04-1949 | 27-06-1949 (R) | 24-08-1949 | |||
| Montenegro | 05-06-2017 (A) | 05-06-2017 | ||||
| Netherlands, the Kingdom of the | 04-04-1949 | 12-08-1949 (R) | 24-08-1949 | |||
| North Macedonia | 27-03-2020 (A) | 27-03-2020 | ||||
| Norway | 04-04-1949 | 08-07-1949 (R) | 24-08-1949 | |||
| Poland | 12-03-1999 (A) | 12-03-1999 | ||||
| Portugal | 04-04-1949 | 24-08-1949 (R) | 24-08-1949 | |||
| Romania | 29-03-2004 (A) | 29-03-2004 | ||||
| Slovakia | 29-03-2004 (A) | 29-03-2004 | ||||
| Slovenia | 29-03-2004 (A) | 29-03-2004 | ||||
| Spain | 30-05-1982 (A) | 30-05-1982 | ||||
| Sweden | 07-03-2024 (A) | 07-03-2024 | ||||
| Türkiye | 18-02-1952 (A) | 18-02-1952 | ||||
| United Kingdom | 04-04-1949 | 07-06-1949 (R) | 24-08-1949 | |||
| United States of America | 04-04-1949 | 25-07-1949 (R) | 24-08-1949 |
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