WTPP has started post-processing activity for the 3PMSF cluster. 90% of test results for normal tyres are expected to be reached by June 2026. WTPP members are working on dataset correction including typos and rounding, and definition of the outliers.
GRVA reviewed the advance copy of ECE/TRANS/WP.29/2026/137 circulated in April 2026 and proposed modifications integrated in the final version in June 2026. The amendments replace [ADS], [This Regulation], [XXX], and [number of this Regulation] with [185]; amend Contents, paragraph references, and numbered paragraphs; add periods and remove brackets; renumber paragraphs 1.4.11.5, 1.4.11.5.1., and 1.4.11.5.2. as 1.4.12., 1.4.12.1., and 1.4.12.2.; replace square brackets with parentheses and examples in tables; and amend fallback requirements and data recording specifications.
The 20th ADS IWG and 17th GRVA Workshop on ADS convened in Bangkok from April 27 to May 1, 2026. OPIs consolidated draft text for the Guidance and Interpretation document (GID) on ADS, addressing DDT performance, application for approval, user interactions, SMS, ISMR, safety case, and assessment provisions. The GID would be submitted to GRVA in May and WP.29 in June as an informal document, then officially in September and November. Numerous amendment proposals were discussed, including clarifications on crash causation, priority vehicles, road safety agents, MRC requirements, remote assistance, and scenario testing. The next session in Brussels (July 14-17) aims to finalize the GID, with Phase 2 work items to be considered thereafter.
IWVTA, established in 2017 under UN R0 and the 1958 Agreement, extends mutual recognition from individual vehicle systems to whole vehicles, reducing duplication while preserving safety and environmental standards. Key benefits include simplified approval procedures, reduced testing and administrative costs, and improved time-to-market through a single coherent whole-vehicle approval framework based on UN Regulations. IWVTA acts as a convergence tool between different regulatory systems and offers a flexible framework for emerging markets. Main obstacles include that IWVTA is not yet global, with limited coverage, uneven acceptance, and complexity of introduction.
The agenda includes discussion of the workplan 2025–2026 for C1 tyres and test campaign status, preparation of the IWG WGWT status report to GRBP 84th session (September 2026), and identification of next meetings scheduled for 2 July and 15 July 2026.
The agenda includes discussion of Draft Resolution on Used Vehicles being submitted to WP.29 as document ECE/TRANS/WP.29/2026/10, anticipated comments on the Formal Document, discussion on the mandate and way forward following adoption of the resolution, dates of the next IWG, and any other business.
The Draft Resolution on Used Vehicles was discussed; Chapter 9 on Environment was updated to remove references to Euro levels and replace them with standard text linked to model year. Footnote 2 required clarification regarding regional requirements. Editorial proposals were reviewed and agreed. The Secretary would compare Chapter 9 with previous proposals, with comments requested by 8 April. Agreement was reached on text for the June WP29 meeting, with formal review at June meeting and adoption at November WP29 session. Editorial comments on transfer of information related to vehicles in transfer to low- and middle-income countries were reviewed and agreed.
OICA proposes that Roadmap Items 2, 2bis, 3, and 4 be withdrawn or deferred until relevant international standardization bodies publish validated methodologies. OICA opposes radiated emissions requirements below 30 MHz in driving and charging modes, radiated emissions in the 16 GHz range, and variable driving conditions assessments, citing lack of technical rationale, absence of published international standards, poor reproducibility for large vehicle categories M3 and N3, and inconsistency with WP.29/2024/39 reproducibility standards. New R10.08 work items must demonstrably enhance safety, align with published international standards, and maintain regulatory stability per ECE/TRANS/WP.29/1044/Rev.3 and WP.29-196-07, WP.29-196-26, and ECE/TRANS/WP.29/1182.
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Global Technical Regulation