Treaty of Bern

Treaty of Bern

Signed	9 October 1874 (1874-10-09)
Location	Bern, Canton of Bern, Switzerland
Parties	Austria-Hungary Belgium Denmark Egypt France German Empire Greece Italy Luxembourg Netherlands Ottoman Empire Portugal Romania Russian Empire Serbia Spain Switzerland United Kingdom United Kingdoms of Sweden and Norway United States
Full text
Treaty of Bern at Wikisource

The Treaty of Bern (formally the Treaty concerning the formation of a General Postal Union), signed on 9 October 1874, established the General Postal Union, which is today known as the

Originally called the General Postal Union, the organization established by the Treaty was renamed the Universal Postal Union in 1878 due to its large membership. World Post Day is now observed on 9 October recalling the date on which the Treaty was signed.

The Treaty of Bern was amended a number of times after its conclusion. On 10 July 1964, the UPU incorporated the treaty into a new Constitution of the Universal Postal Union, which is now the treaty that is ratified by states when they wish to join the UPU.

The Universal Postal Union Congress of 2021 taking place in Abidjan brought about another significant change to the Treaty of Bern. Previously the agreements of the congress were valid for only 4 years, but since July 1, 2022, when the treaty came into effect, their validity is now no longer limited in time.^[2]

• List of members of the Universal Postal Union (ratifications of the Treaty of Bern/UPU Constitution)

• "General Postal Union; October 9, 1874". The Avalon Project at Yale Law School. The Lillian Goldman Law Library in Memory of Sol Goldman. Retrieved 30 November 2009.

• Universal Postal Union – About us (Archived 29 March 2010 at the Wayback Machine)