Barcelona
Treaties
| Signed on | In force on | Title |
|---|---|---|
| 20 April 1921 | 31 October 1922 | Convention and Statute on Freedom of Transit |
| 20 April 1921 | 31 October 1922 | Convention and Statute on the Regime of Navigable Waterways of International Concern |
| 20 April 1921 | 31 October 1922 | Additional Protocol to the Convention and Statute on the Regime of Navigable Waterways of International Concern |
| 20 April 1921 | Declaration recognising the Right to a Flag of States having no Sea-Coast |