The Informal Working Group on Prioritization held its first meeting on 25 September 2026. The group discussed the context and background of its establishment under WP.29 Vice-Chair Takashi Naono, including the inception report and guidance from WP.29 to continue work with participation of NGOs and OICA as technical secretary. The group reviewed draft terms of reference distinguishing final objectives from proposed means to achieve them, including common understanding of prioritization, high-level review of current GRs activities and resource needs, and possible approaches to define prioritization. Discussions addressed whether the IWG should be under AC.2 or WP.29 responsibility, with consensus emerging toward WP.29. The group reviewed a prioritization methodology document from UK proposing a consolidated numbered list of all GR priorities for individual ranking by WP.29 members. The group established actions including provision of comments on draft terms of reference no later than one week prior to the next meeting, with terms of reference to be implemented no later than November 2028.