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Training, tech, Treaty commitments: LAC workshop strengthens regional capacity

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Bolivia leverages CTBT data to launch first-ever seismic design code

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Advancing operations and maintenance: Highlights from IMS' technical meeting

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CTBTO detects two earthquakes in northern Iran on 5 October

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Diving deep: CTBTO data helps discover new pygmy blue whale population

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Our Mission

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Ending Nuclear Tests

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National Data Centres-for-All Initiative

CTBTO installs cutting-edge data system in Yemen, advancing regional capacity

Building Self-Sufficiency in On-site Inspection Operations

CTBTO Signs Facility Agreement with Indonesia

Member States reappoint Robert Floyd as CTBTO Executive Secretary

Schedule of sessions

Preparatory Commission

Sixty-Fourth Session Of The Preparatory…

24 Jun 2025 -26 Jun 2025

Working Group B

Sixty-Fifth Session Of Working Group B

25 Aug 2025 -05 Sep 2025

Advisory Group

Sixty-Fifth Session Of The Advisory Group

22 Sep 2025 -25 Sep 2025

Training and Workshops

Regional Radionuclide Workshop And…

03 Nov -07 Nov 2025

Training Course On Ndc Capacity Building:…

02 Jun -20 Jun 2025

Technical Meeting On Shi Software Engineering

17 Jun -18 Jun 2025

Tweets by @CTBTO

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CTBTO Fact Sheet

International Monitoring System (IMS) Map

Verification Regime Brochure

Civil and Scientific Applications Brochure

On-Site Inspection Brochure

Work With Us

Join CTBTO on our mission to create a world free of nuclear testing. Learn more about employment and business opportunities with the Provisional Technical Secretariat.

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