CTBTO upgrades online services for Member States

CTBTO upgrades online services for Member States

The Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) has upgraded the online services provided to its Member States. These are now all accessible through a single sign-on portal.

User-friendly and customisable IDC Secure Web Portal


When complete, the CTBTO's International Monitoring System (IMS) will comprise 337 seismic, radionuclide, hydroacoustic and infrasound facilities to detect signs of a nuclear explosion anywhere on the planet. Nearly 90 percent of these IMS facilities are already operational and sending data to the International Data Centre (IDC) in Vienna for analysis.

Through the IDC’s Secure Web Portal, Member States’ experts can access IMS data and IDC analyses. This enables States to assess whether or not a suspicious event has occurred that might constitute a violation of the Comprehensive Nuclear-Test-Ban Treaty (CTBT).


Each of the CTBTO’s 183 Member States may designate up to 6 institutions and 28 authorized users. At present, there are over 1,500 users in around 130 countries, with increasing tendency especially in developing countries.

Member States and their institutions are free to use CTBTO data also for disaster mitigation, for example for tsunami warning or tracking radiation dispersion after nuclear accidents.


Furthermore, the data are a valuable asset for scientific research, such as on climate change (brochure), oceans and marine life, or on meteors blasts (video). For specific research projects, independent scientific and research institutions may apply for access to the CTBTO’s virtual Data Exploitation Center (vDEC).

The IDC Secure Web Portal is a major step forward in making our services more user-friendly. This one-stop-shop provides equal, open, timely and convenient access to all IMS data and IDC products.Randy Bell, Director International Data Centre

The revamp takes into account the input from Member States’ experts. The new IDC Secure Web Portal provides interactive access to:

  • IMS data
  • IDC analyses
  • Technical assistance and services
  • Information on the status of health of IMS stations
  • Information on non-verification uses of IMS data such as tsunami warning


New features include a forum where experts can share their analyses and upload their calculations, customizable presentation layers and detailed information on recent events of interest such as the February 2013 announced nuclear test by the Democratic People's Republic of Korea (DPRK).

Delegates’ Communication System also upgraded


The main communication platform for delegates to the CTBTO’s governing bodies, the Experts Communication System (ECS), has also been upgraded to deliver a responsive, appealing and stable user experience across multiple platforms. New features include:

  • Integrated playback of archived videos and live video streams
  • Improved search capabilities
  • Access to presentations
  • Enhanced notification schedules for notifications
  • Bulk download of documents
  • Designed also for use on mobile devices

Access for Member States’ experts and delegations

  • Experts Communication System

    If you would like to become an authorized user of the Experts Communication System, please download the ECS Application Form (PDF) and submit it by email to ecs_webmasterping@ctbtopong.org. Please note that applicants from States Signatories should be nominated by way of a note verbale from their Permanent Mission.


Access for scientific and research institutions