The Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) relies on innovation to enhance the capabilities of the Treaty’s verification regime as well as to help move the Treaty closer to universalization and entry into force. As the ninth event in the CTBT: Science and Technology Conference series, SnT2027 will bring together again, over 1000 scientists, technologists, academics, students, and representatives of the CTBTO’s policy making organs, in a hybrid format, enabling both in-person and virtual participation. In addition, representatives from the fields of research and development, science diplomacy, science advisory, media and advocacy are invited to attend the conference.
SnT2027 is scheduled to take place from 28 September to 1 October 2027 at the Vienna International Centre (VIC, M-Building), Vienna,Austria to create a worldwide inclusive conference and reach out to support globally.
SnT2027 Overall Objective
To evaluate and advance the science and technology underpinning the verification of the Comprehensive Nuclear-Test-Ban Treaty (CTBT).
Conference Objectives:
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Build on previous conferences by advancing discussions and developments arising from the five thematic areas explored during SnT2023 and SnT2025.
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Assess and enhance verification capabilities by examining the performance and potential of the International Monitoring System (IMS), including improvements to monitoring stations, networks and data processing methodologies.
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Highlight the work of the International Data Centre (IDC) by showcasing the specialized scientific and technical processes involved in generating, reviewing and delivering IDC products.
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Explore the role of Artificial Intelligence (AI) by introducing AI as a dedicated conference theme and examining its applications and potential contributions to support the work on CTBT verification.
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Promote inclusivity and diversity by highlighting ongoing initiatives to strengthen women's participation and advance multilingualism in CTBT verification.
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Provide insight into CTBTO operations by offering an open-house perspective on the Organization's headquarters and key verification activities, including IMS network operations, the Global Communications Infrastructure (GCI), IDC data processing and developments in On-Site Inspection (OSI), drawing on the Integrated Field Exercise 2026 (IFE26).
Dates and key deadlines:
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16 November 2026: Registration for the Conference opens, and will remain open until the Conference
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10 December 2026: Abstract submission opens
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15 March 2027: Deadline for abstract submission and requesting financial support
Further information concerning the Scientific Programme, registration, participation modalities and practical arrangements will be published as preparations for SnT2027 progress.
