| Country | Action | Action Date | Effective Date |
|---|
| BELGIUM | Signature | 23/10/1954 | |
| BELGIUM | Ratification | 22/04/1955 | |
| BELGIUM | Denunciation | 30/06/2010 | 30/06/2010 |
| FRANCE | Signature | 23/10/1954 | |
| FRANCE | Ratification | 05/05/1955 | |
| FRANCE | Denunciation | 30/06/2010 | 30/06/2011 |
| GERMANY FEDERAL REPUBLIC | Signature | 23/10/1954 | |
| GERMANY FEDERAL REPUBLIC | Ratification | 05/05/1955 | |
| ITALY | Signature | 23/10/1954 | |
| ITALY | Ratification | 20/04/1955 | |
| LUXEMBOURG | Signature | 23/10/1954 | |
| LUXEMBOURG | Ratification | 04/05/1955 | |
| LUXEMBOURG | Denunciation | 30/06/2010 | 30/06/2011 |
| NETHERLANDS THE | Signature | 23/10/1954 | |
| NETHERLANDS THE | Ratification | 01/05/1955 | |
| SPAIN | Denunciation | 18/10/2010 | 18/10/2010 |
| UNITED KINGDOM | Signature | 23/10/1954 | |
| UNITED KINGDOM | Ratification | 05/05/1955 | |
| UNITED KINGDOM | Withdrawal | 01/06/2010 | 30/06/2011 |