The Comprehensive Nuclear-Test-Ban Treaty

Since 1998, Health Canada has been contributing to the International Monitoring System (IMS), an element of the Verification Regime overseen by the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO). This compliance Treaty seeks a universal ban on all nuclear detonation as an effective means to stop further development of nuclear weapons.

Canada is responsible for the installation and operation of fifteen monitoring stations across the country and a radionuclide laboratory. Health Canada's Radiation Protection Bureau is responsible for the radionuclide laboratory and four radionuclide monitoring stations. These installations, along with 11 other stations using seismic, hydroacoustic and infrasound technology, collect and transmit monitoring data to the CTBTO to monitor for evidence of any nuclear explosion.

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