The IWG on SCUNV held its twentieth meeting on 5 March 2026 with participants from eleven countries and multiple organizations. The group focused on Draft Resolution SCUNV-20-02, specifically Chapter 9 on used vehicle emissions standards. The group confirmed Euro 4 as the minimum emissions requirement and agreed that both OBD and tailpipe testing are acceptable verification methods. Optional guidance for Euro 5/6 vehicles will be included without changing the minimum requirement. References to pre-1980 vehicles will be removed. CITA will submit revised Chapter 9 wording by 9 March 2026 for WP.29 presentation on 11 March 2026. The document submission deadline for the June 2026 WP.29 session is 31 March 2026.