About Us

Member Services / Participating Services / Observers

36 services from 17 different countries are members of COTSOES. The number of services from any country is not limited. Central government translation, terminology and/or interpretation services from States outside Europe and from intergovernmental organisations may attend the Assembly as Participating Services, but are not entitled to vote. Representatives from services and institutions other than Member or Participating Services may, at the invitation of the Presidency, attend the proceedings of the Assembly as Observers. The Rules of the Conference were established in 1982 in Bern. They have recently been revised; the updated version is available in English, in French and in German.


Working Groups

Most of the work of the Conference takes place within its Working Groups. There are four Working Groups:

  • Human Resources
  • Internal Rules
  • Terminology
  • New Technologies



The Assembly meets every two years in ordinary session. The Presidency is elected in the Assembly for a period of two years, and the outgoing Presidency assists the new Presidency to ensure continuity. The principal duties of the Presidency are:

  • Drawing up the agenda for the Assembly
  • Organising and directing the activities of the Assembly
  • Circulating the decisions and recommendations adopted by the Assembly as well as the working groups’ reports
  • Preparing an account of the activities of the Conference

The 18th session of the Assembly took place in Fribourg on 2 and 3 October 2014, chaired by the Terminology Section of the Central Language Services of the Swiss Federal Chancellery (2013-2014 mandate), in partnership with the Chancellery's three other services. From 1 January 2015 to 31 December 2016, the Presidency will be held by the Translation Department of the Swedish Ministry for Foreign Affairs. The Translation Department of the Turkish Ministry of Foreign Affairs has already expressed its willingness to hold the Presidency for 2017-2018.


Working Languages

The working languages of the Conference are English, French and German. If the Presidency is unable to arrange interpretation at the Assembly, it can request assistance from Member Services. The working groups’ reports are prepared in all three languages.



COTSOES Presidency

Barbaros Tuna Erdem
Head of Translation Department

Kamber Güler

Ministry of Foreign Affairs of the Republic of Turkey
Translation Department
06100 Ankara
+90 312 253 40 45