How did the CTBTO PrepCom Amendment affect the CTBT?
It included an amendment that passed by voice vote fencing certain funds until the President certifies that no state party to the CTBT has conducted certain nuclear weapon tests, and barring use of U.S. contributions to the CTBTO PrepCom for lobbying or advocacy in the United States relating to the CTBT.
How does CTBTO data work?
Data from all stations are transmitted to the CTBTO International Data Centre (IDC) in Vienna through a global private data network known as GCI, which is largely based on satellite ( VSAT) links. States Parties will have equal and direct access to all IMS data, raw or processed, for verification as well as civilian uses.
What does CTBTO stand for?
Article II of the CTBT establishes the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO). However, that organization will not come into existence until and unless the treaty enters into force.
When does the CTBT enter into force?
The treaty will enter into force 180 days after the 44 states listed in Annex 2 of the treaty have ratified it. These "Annex 2 states" are states that participated in the CTBT's negotiations between 1994 and 1996 and possessed nuclear power reactors or research reactors at that time.
![CTBTO on Twitter: \](https://www.ctbto.org/uploads/pics/Legal_page_banner.png "CTBTO on Twitter: \")
