Draft agenda for the 52nd session of TFTA on 8 and 9 October 2026 in Brussels and remotely. The main target of the meeting is brainstorming on C3 test method. Discussion items include framing the C3 challenge, C3 tyre segmentation to categorise diverse tyre groups and duty cycles into manageable regulatory groups, methodological ideation for simplified C3 testing approaches, and funding and resource allocation. Additional items include C1 outcome discussion with Korean test centers regarding circuit SRTT abrasion level range and C2 status on ongoing test campaign.

Proposal to amend Annex 7, para. 2.3.1 to constrain the factor x determined by discrete coast-down measurement to a minimum of 10 and a maximum of 90 for internal combustion engine and hybrid electric vehicles, or 95 for electric vehicles, ensuring the Sound Expectation Model remains robust against measurement variations in tyre rolling sound and powertrain mechanic sound splitting.

Agenda for the 132nd session of the Working Party on General Safety Provisions, scheduled 28 September to 2 October. The session will address amendments to UN R107, UN R43, UN R46, UN R67, UN R110, UN R116, UN R161, UN R162, UN R163, UN R151, UN R158, UN R159, UN R166, UN R121, UN R122, UN R125, UN R0, UN R160, UN R169, UN R58, UN R105, UN R73, UN R39, and UN R58. The session will also cover vehicle automation, periodical technical inspections, driver distraction and drowsiness warning systems, and door open warning systems.

Provisional agenda for the 52nd session of the IWVTA Informal Group scheduled for November 12, 2026 in Paris. The session will address election of a new Chair, adoption of the agenda and 51st session report, highlights from the 199th WP.29 session, amendments to UN R0 series, contradiction between transitional provisions in UN R22 and Revision 3 of the 1958 Agreement, proposed amendments to Guidelines on Transitional Provisions, IWVTA awareness and promotion, extension of mandates, and DETA scheme implementation.