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Introduction

The verification regime of the Comprehensive Nuclear-Test-Ban Treaty (CTBT) is designed to detect any nuclear explosion conducted on Earth – underground, underwater or in the atmosphere.

The purpose of the verification regime is to monitor countries’ compliance with the CTBT which bans all nuclear explosions on the planet.

Besides promoting the CTBT, the main task of the Preparatory Commission for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) is to build this regime and to ensure that it is operational by the time the Treaty enters into force.

The CTBT’s global alarm system is designed to detect any nuclear explosion conducted on Earth – in the underground, underwater or in the atmosphere.

The verification regime consists of the following elements:

  • International Monitoring System
  • International Data Centre
  • Global Communications Infrastructure
  • Consultation and clarification
  • On-Site Inspection
  • Confidence-building measures