The Comprehensive Test Ban Treaty (CTBT) bans nuclear explosions by everyone, everywhere: on the Earth’s surface, in the atmosphere, underwater and underground. The treaty has a unique and comprehensive verification regime to make sure that no nuclear explosion goes undetected. The International Monitoring System consists of hundreds of facilities which monitor the planet for signs of nuclear explosions. Afghanistan was the 169th state to sign the CTBT and the 105th to ratify it in 2003. The PM of Afghanistan in Vienna works closely with CTBT in order to ensure that all nuclear safeguards are in place in Afghanistan and is fully dedicated to strengthening the international nuclear non-proliferation and disarmament regime.