| 15 December 1950 |
4 November 1952 |
Convention Establishing a Customs Co-operation Council |
| 3 October 1957 |
1 April 1959 |
Agreement concerning Postal Parcels |
| 3 October 1957 |
1 April 1959 |
Agreement concerning Insured Letters and Boxes |
| 3 October 1957 |
1 April 1959 |
Universal Postal Convention [together with Final Protocol, Detailed Regulations and Annexes, Provisions concerning Air Mail with their Final Protocol and Annexes] |
| 10 July 1964 |
1 January 1966 |
Universal Postal Convention |
| 10 July 1964 |
1 January 1966 |
Agreement concerning Giro Transfers [with Detailed Regulations] |
| 10 July 1964 |
1 January 1966 |
Agreement Concerning Insured Letters and Boxes [with Final Protocol and Detailed Regulations] |
| 10 July 1964 |
1 January 1966 |
Agreement concerning Postal Parcels [with Final Protocol, Detailed Regulations and Final Protocol thereto] |
| 10 July 1964 |
1 January 1966 |
Constitution of the Universal Postal Union [with Final Protocol, General Regulations and Final Protocol thereto] |
| 14 November 1969 |
1 July 1971 |
Giro Transfers Agreement [With Detailed Regulations] |
| 14 November 1969 |
1 July 1971 |
Postal Parcels Agreement (with Final Protocol and Detailed Regulations] |
| 14 November 1969 |
1 July 1971 |
Universal Postal Convention (with Final Protocol and 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) |
|
1 October 1952 |
International Sanitary Regulations adopted by the World Health Assembly on May 25, 1951 |