Ukraine is a member of all of the major nonproliferation treaties and regimes, including the Treaty on the Non-Proliferation of Nuclear Weapons (NPT), the Comprehensive Nuclear Test Ban Treaty (CTBT), the Biological and Toxin Weapons Convention (BTWC), the Chemical Weapons Convention (CWC), the Australia Group (AG), the Zangger Committee (ZC), the Nuclear Suppliers Group (NSG), the Missile Technol