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Our Mission

Ending Nuclear Tests

The Treaty

The Organization

States Signatories

Article XIV Conferences

Our Work

News and Events

Solomon Islands and Papua New Guinea commit to ratify CTBT

Science Diplomacy Symposium 2022

Research festival: CTBTO showcases work at science event for all ages

Honduras signs tsunami warning agreement with CTBT

CTBTO Head hails Treaty "A Success Story" at NPT Review Conference

Timor-Leste ratifies CTBT, universalising Treaty in South-East Asia

Schedule of sessions

Working Group A

Sixty-Third Session

29 May 2023 -30 May 2023

Preparatory Commission

Sixtieth Session

12 Jun 2023 -13 Jun 2023

Training and Workshops

Online Ndc Training Course: Advanced…

14 Nov -25 Nov 2022 01:00 pm -03:30 pm

7Th Workshop On The Operation And…

28 Nov -02 Dec 2022

Ndc Capacity Building: Waveform Training…

28 Nov -02 Dec 2022

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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