The Informal Working Group on Advanced Emergency Braking System held its first session on 22 April 2026. Focus was confirmed on passenger cars of category M₁ and light vehicles under UN Regulation 152, with heavy vehicles explicitly excluded. The group’s Terms of Reference outline five core tasks. A meeting timeline from April 2026 to September 2028 was proposed, with delivery of an amendments proposal on UN Regulation 152 by September 2028. The co-Chairs called for accidentology data from all Contracting Parties.