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Somalia signs CTBT, “testament to unwavering commitment to peace, security”

CTBTO head pays tribute to Hiroshima and Nagasaki atomic bombing victims

Nuclear Testing: `Oppenheimer` Shines Light on Manhattan Project Legacy

Sri Lanka to host next on-site inspection integrated field exercise in 2025

CTBTO showcases “Power of Together” in Science and Technology Conference

Our Mission

Ending Nuclear Tests

The Treaty

The Organization

States Signatories

Article XIV Conferences

Our Work

News and Events

Sri Lanka ratifies CTBT, propelling South Asia towards full adherence to Treaty

UNIS and CTBTO screen Loneliest Whale film, hold panel discussion

Supporting Women in STEM: CTBTO Mentoring Programme

Schedule of sessions

Advisory Group

Sixty-First Session

26 Sep 2023 -29 Sep 2023

Working Group A

Sixty-Fourth Session

16 Oct 2023 -18 Oct 2023

Working Group A

Sixty-Fourth Session

16 Oct 2023 -18 Oct 2023

Training and Workshops

Technical Training For Radionuclide Station…

17 Oct -20 Oct 2023

Ndc Capacity Building: Waveform Training…

16 Oct -20 Oct 2023

This Training Course Is Postponed Until…

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Resources

Member States

Researchers & Experts

Civil Society

Media

Information Materials

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.

Employment Procurement