| 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 |
| 1 July 1968 |
5 March 1970 |
Treaty on the Non-Proliferation of Nuclear Weapons [Washington Version] |
| 14 November 1969 |
1 July 1971 |
Universal Postal Convention (with Final Protocol and Detailed Regulations) |
| 14 November 1969 |
1 July 1971 |
Postal Parcels Agreement (with Final Protocol and Detailed Regulations] |
| 14 November 1969 |
1 July 1971 |
Insured Letters and Boxes Agreement [With Detailed Regulations] |
| 14 November 1969 |
1 July 1971 |
Additional Protocol to the Constitution of the Universal Postal Union (with Declarations, General Regulations, Final Protocol and Rules of Procedure of Congresses) |
| 14 November 1969 |
1 July 1971 |
Additional Protocol to the Constitution of the Universal Postal Union (with Declarations, General Regulations, Final Protocol and Rules of Procedure of Congresses) |
|
15 July 1966 |
International Labour Convention No. 122 concerning Employment Policy adopted by the General Conference of the International Labour Organisation at its Forty-eighth Session [ILO No. 122] |