CSP12 is the annual conference where States Parties to the Arms Trade Treaty meet to discuss the implementation and development of the treaty. The programme includes discussions on treaty implementation, transparency and reporting, treaty universalization, international assistance, gender-related commitments and other matters relating to the treaty.

The conference is taking place 24–28 August 2026 at CICG in Geneva, with sessions running from 10:00–13:00 and 15:00–18:00 CEST.