Progress report on the Task Force on Tyre Abrasion covering February to October 2026. Work on UN Regulation on tyre abrasion for C1 tyres has concluded, with new UN R186 adopted at WP.29’s 199th session in June 2026, implementing a two-stage approach with initial application from 30 June 2028 and increased stringency from 30 June 2033. C2 test method development is ongoing with formal working document postponed to February 2027; C3 tyre work commenced with brainstorming session in October 2026 targeting working document in February 2027. The Task Force proposes conversion to an Informal Working Group.

Document outlining the 1st DETA/IWVTA Workshop held on 17 June 2026 in Flensburg, Germany. The workshop covered presentations on what DETA and IWVTA are, industry and government expectations, and issuance and acceptance of IWVTA certificates in the EU. Survey responses from 15 participants, including from Southeast Asian countries, indicated needs for more explanation on DETA access rights, onboarding processes for new Contracting Parties, and clearer guidance on how IWVTA can be modified to suit individual markets. Suggestions included developing supporting materials and guidelines on IWVTA application procedures and organizing a second workshop in Japan or Asia.

Report on the Task Force on Tyre Abrasion’s work from February to October 2026. Foundational methodologies for C1 tyres were adopted and incorporated into a new UN Regulation 186 on tyre abrasion, with a two-stage implementation approach requiring new tyre type approvals from 30 June 2028 and mandatory approval from 30 June 2030, with fitting of pre-June 2030 tyres on vehicles permitted until 30 June 2032, and stage 2 introducing tighter limits with new approvals from 30 June 2033 and mandatory approval from 30 June 2035. C2 test method development is ongoing with an informal document presentation targeting February 2027 submission of a formal working document. For C3 tyres, a brainstorming session was planned for October 2026 in Brussels to develop simplified test methods before physical testing, focusing initially on long-haul and regional 22.5-inch tyres.

Record of Webex participants attending the TA-52-11 meeting over two days, listing participants’ names, affiliations, and join and leave times for each session.

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.

Discussion of R.E.3. revision 8 adopted by WP.29 in November 2025, which allows vehicle manufacturers to apply for new approvals for software versions on registered vehicles. The Netherlands raised concerns about compatibility with type approval principles, the 1958 Agreement, and EU law, citing issues with traceability, multiple approvals for one type, approval requirements for non-production vehicles, and product marking. The document proposes distinguishing between ‘live’ approvals for new vehicles using normal type approval procedures and ‘legacy’ approvals for in-service vehicles using an updated revision concept, with updates to Schedule 3 of the 1958 Agreement and R.E.3. revision 9.

Draft agenda for the 77th session of the Informal Working Group on Wet Grip of Worn Tyres, scheduled for October 28th 2026, remotely. The session will cover welcome and opening remarks, adoption of the agenda, adoption of minutes from the 76th session held on 28 August 2026, the workplan 2025-2026 for C1 tyres and outcome from WTPP, and discussion of next meetings.