| Country | Action | Action Date | Effective Date |
|---|
| AUSTRIA | Signature | 20/12/1841 | |
| AUSTRIA | Ratification Dated | 24/01/1842 | |
| AUSTRIA | Ratification | 19/02/1842 | |
| BELGIUM | Accession | 24/02/1848 | |
| FRANCE | Signature | 20/12/1841 | |
| PRUSSIA | Signature | 20/12/1841 | |
| PRUSSIA | Ratification Dated | 12/01/1842 | |
| PRUSSIA | Ratification | 19/02/1842 | |
| RUSSIA | Signature | 20/12/1841 | |
| RUSSIA | Ratification Dated | 03/01/1842 | |
| RUSSIA | Ratification | 19/02/1842 | |
| UNITED KINGDOM | Signature | 20/12/1841 | |
| UNITED KINGDOM | Ratification | 15/02/1842 | |
| UNITED KINGDOM | Ratification Dated | 15/02/1842 | |
| UNITED KINGDOM | Ratification | 19/02/1842 | |