The CTBTO’s Integrated Field Exercise (#IFE26) has moved into the field operations in Namibia. Within the fictional scenario, teams are laying the groundwork for the start of the exercise inspection activities in the field: from the arrival at the Point of Entry procedures to negotiations, equipment check and transport, and establishing the Base of Operations. Our thanks to Namibia for hosting, actively participating and helping make this international exercise possible.

38 of 38. With the certification of infrasound station IS54 at Palmer Station, Antarctica, the United States has completed its segment of the International Monitoring System (IMS). Reaching this point in one of the most remote and unforgiving places on Earth was no small undertaking, and we owe a great deal to the US, @doddtra and @uafairbanks for seeing it through. The story of how it was installed: ctbto.info/IS54

One Treaty. One Goal. Zero Tests. 30 years ago, States came together with a shared ambition: to end nuclear test explosions.
 This Tuesday in Vienna, #CTBTO Executive Secretary @DrRobFloyd marked the 30th anniversary of the #CTBT alongside @MFA_Austria Minister @BMeinl, Filip Worotynski representing Mayor @BgmLudwig of @stadt_wien and @iaeaorg’s Director General @rafaelmgrossi at the Rathaus, at an event generously supported by 🇦🇺, 🇦🇹 and 🇰🇿.

The message is clear: the Treaty remains a cornerstone of the global non-proliferation and disarmament architecture, and its mission is more urgent and relevant than ever.

On 24 September 1996, the CTBT opened for signature: one of the most consequential steps ever taken against nuclear test explosions. 30 years on, 188 States have signed it and 179 have ratified it. The work of finishing it continues. 🌍 ctbto.info/Treaty

At the 12th Friends of #CTBT Ministerial Meeting in New York, Executive Secretary @DrRobFloyd underscored why the Treaty matters and why we must sustain it: “Going back to nuclear weapons testing will make everything much worse. Our Treaty is a force for good. For peace. For common sense.” Read his full statement: ctbto.info/CTBTFriendsESstat… 📷 @UN_Photo

Convening the 12th Friends of the #CTBT high level meeting, @SenatorWong, Foreign Minister of Australia, highlighted the group’s continued commitment to advancing the Treaty - and to the shared objective of bringing all nuclear test explosions to an end.

Over the last two weeks, 17 experts from developing States Signatories - the highest-ever number of Technical Experts Support Programme (TESP) participants attending a Working Group B (WGB) session in person - participated in WGB-67 thanks to generous EU (@euunvie) support. They joined the opening plenary, expert group meetings and technical discussions; visited #CTBTO monitoring facilities in Vienna; and met Acting WGB Chair Professor Läslo Evers. Their participation strengthens the technical expertise supporting the #CTBT verification system.