European Union Council's Political and Security Committee visits the CTBTO

Vienna, 25 April 2016

On 25 April, Ambassadors from the European Union Council’s Political and Security Committee visited the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) in Vienna, Austria. As part of the visit, the Members of the EU Political and Security Committee were briefed by CTBTO Executive Secretary, Lassina Zerbo, and taken on a tour of the International Data Centre (IDC) and radionuclide station at the Vienna International Centre (VIC).
The CTBT is a Treaty that is ready but not yet in force.

“EU countries have provided around 40% of the budget of the CTBTO over the last 20 years” Zerbo told the audience. “The CTBTO has been able to complete the International Monitoring System (IMS) to 92% and is ready to enforce the Treaty because of support from the EU.”

Members of the EU Political and Security Committee receive a tour of the IMS radionuclide station on the roof of the Vienna International Centre.

The visit coincided with the event of a magnitude 4.1 earthquake in the Vienna area at 12:28 local time. As part of the International Monitoring System (IMS) to detect nuclear explosions, CTBTO seismic stations around the world picked up on the signals from earthquake. When the Members of the EU Political and Security Committee visited the IDC in the afternoon, they were able to see the data collected on the event from seismic stations as far away as Thailand and Niger. Earthquake monitoring is just one of the many civil and scientific uses of IMS data for disaster warning and science.

Randy Bell, Director of the International Data Centre (IDC), briefs the Members of the EU Political and Security Committee

The CTBTO stands ready to fulfil the terms and verification of the Treaty, as soon as the remaining 8 Annex 2 countries ratify to bring the CTBT into force. A CTBTO High-Level Ministerial meeting on 13th June 2016 seeks to bring policymakers to Vienna to discuss how to move forward on the Treaty. Federica Mogherini, High Representative of the European Union for Foreign Affairs and Security Policy and member of the CTBTO Group of Eminent Persons, has made bringing the CTBT into force as one of the main objectives of the EU.

“We have a habit of responding, rather than anticipating crisis in the modern world” added Zerbo. “EU Ambassadors can encourage non-signatory countries to adhere to the moratorium on nuclear testing as a first step in tackling nuclear weapons testing.”


As part of the EU Strategy against the Proliferation of Weapons of Mass Destruction (PDF), these contributions aim to promote peace and stability, an endeavour for which the EU was awarded the Nobel Peace Prize in 2012. All 28 EU Member States have signed and ratified the CTBT. The EU Member States’ regular contributions amount to around 40% of the CTBTO’s budget. In addition, the EU has contributed to the CTBTO’s budget around 19 million euros  in voluntary contributions. See here for the 2015 EU contribution amounting to around 3 million euros for activities that strengthen the verification system and provide capacity building over the next two years.