CTBTO
Founded in 1996 and located in Vienna, CTBTO has made its mission to promote the Treaty and to hamper first development and the further development of nuclear weapons more difficult by operating. A global net of sensors serves as surveillance mechanism; furthermore, it intends to carry out on-site inspections after the Treaty has come into force. The organization can only fulfil its mission completely when the 44 states have ratified Annex 2 of the Treaty; so far, only 41 states have signed, and 36 have ratified the Treaty.
