The Eighteenth GRVA Workshop on ADS will be held on 1 June 2026 from 12:30–14:30 Geneva time online via MS Teams. The workshop will adopt the provisional agenda and minutes of the 16th GRVA workshop on ADS. Participants will receive briefing on highlights from the informal part of the 25th GRVA held in Montreal from 18–22 May 2026. The workshop will review the timeline for delivering the Guidance and Interpretation Document as an informal document at the 200th WP.29 session and as an official document for consideration at the March 2027 session. OPIs will inform participants on their development activities for the guidance and interpretation document.