24. The Co-chairs of TFTA introduced GRBP-84-30. The Chair sought clarification on the important delay between method definition and limit setting for C3 tyres. The Co-chairs of TFTA informed that the timeline for the C3 method to be finalized by February 2027 was probably too optimistic and needed to be updated. The representative of Japan supported the on-going activities, recalling the need for technology-neutral approaches for C2 and C3 tyres.

25. The representative of JATMA recalled its statement made during the 199th session of WP.29 on the importance of a technology-neutral solution for test methods and stressed the necessity to continue working on improving the equivalence criteria for C1 tyres. He further stated that the need for technology neutrality extended beyond C1 tyres to the deliberations on C2 and C3 tyres, which presented greater complexity across countries and regions. In this regard, he welcomed the planned C3 brainstorming session planned for October 2026 and stressed that C3 tyre market analysis and segmentation should duly take into account the diverse market realities and technical knowledge across the Contracting Parties to the 1958 Agreement. He concluded by stating that the consideration of test methods should proceed, without prejudging any particular technical approach, from a technology-neutral perspective.