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Our Mission

Ending Nuclear Tests

The Treaty

The Organization

States Signatories

Article XIV Conferences

Our Work

News and Events

Vienna Daughters’ Day: Empowering girls to STEM the tide of gender disparity

UNIS and CTBTO screen Loneliest Whale film, hold panel discussion

Supporting Women in STEM: CTBTO Mentoring Porgramme

Schedule of sessions

Working Group A

Sixty-Third Session

24 May 2023 -25 May 2023

Preparatory Commission

Sixtieth Session

12 Jun 2023 -13 Jun 2023

Working Group B

Sixty-First Session

21 Aug 2023 -01 Sep 2023

Training and Workshops

Hpc Workshop For Nuclear Explosion Monitoring

15 May -17 May 2023

Technical Meeting On Shi Software…

26 Jun -27 Jun 2023

Technical Meeting On The Idc Validation And…

14 Jun -16 Jun 2023

Tweets by @CTBTO

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