Note by the secretariat reporting on results of the 131st GRSG session presented to WP.29 in June 2026. GRSG adopted revised Terms of Reference for the Informal Working Group on Driver Distraction and Drowsiness Warning Systems, extending its mandate until October 2028 to finalize the 01 series of amendments to UN R182 and UN R183. WP.29 recommended to AC.1 the adoption of 36 amendment packages to UN Regulations under GRSG responsibility. Mongolia acceded to the 1958 Agreement on 29 April 2026, with entry into force on 28 June 2026. WP.29 endorsed continued work on IWVTA and DETA.
Proposal to amend para. 1.4. to clarify that recording requirements depend on availability of the trigger or data element itself rather than sensor format capabilities, amend para. 5.3.1.2. to permit the EDR to write Last Stop trigger data in volatile memory only, accommodating at least five most recent stops to be overwritten on a first-in first-out basis until another trigger occurs or the vehicle master control switch is deactivated, and amend paras. 2.5., 2.48. and 2.49. for clarity and consistency with UN R160.
Proposal to amend para. 1.4. to clarify requirements for recording data elements when sensors or systems are not operational or cannot meet specified format requirements, amend para. 2.20. to redefine engine throttle as driver-requested acceleration torque demand, amend para. 2.73. to define trigger activated, amend para. 5.4.3. to clarify crash test data element requirements and specify impact severity levels by reference to UN Regulations Nos. 94, 95, and 137, insert new paras. 12.12.–12.17. containing transitional provisions with applicability dates from entry into force through 1 September 2035, and amend Table 1 in Annex 4 to modify data element recording intervals, sample rates, ranges, accuracy, and resolution specifications, add new data elements including vulnerable road user secondary safety system warning indicator status, corrective steering function status, emergency steering function status, automatically commanded steering function category status, accident emergency call system status, advanced driver distraction warning, driver control assistance system driver monitoring system warning data, driver drowsiness and attention warning, and time to collision, and clarify footnote references.
The document describes automated shuttles as vehicles designed for public transport with autonomy by design, typically with fewer than 10 seats, constructed like Class A buses, and often limited in maximum speed or bidirectional. Automated shuttles are deployed globally and already comply with most technical requirements for M₂/M₃ vehicles except some UN R107 requirements and bidirectional aspects. Current UN vehicle categories are incompatible with shuttles: M₁ does not have provisions for standing passengers, and shuttles cannot be granted approvals to most UN Regulations because they have fewer than 10 seats. Three options for categorization are presented: a new category M₄, a new class of M₂/M₃ (Class C), or redefinition of M₂/M₃ Class A. A workshop is proposed for 4 December in Paris to determine whether an international category or class is necessary.
Minutes of the eleventh meeting of the IWG on EV/HFCV Retrofit Systems held on 9 September 2026. The group adopted the provisional agenda and reviewed the draft UN Regulation on EV/HFCV retrofit systems. Key discussions addressed the regulatory concept for approval of the Electric Powertrain Retrofit System combined with installation requirements and vehicle testing, vehicle scope including possible exclusion of older vehicles and those subject to UN Regulations Nos. 155 and 156, and confirmation that HFCV provisions would remain as placeholders for later development. The updated working document will be circulated before submission to GRPE in October 2026.
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.
The document describes a project to identify Advanced Emergency Braking Systems (AEBS) performance gaps by analysing real-world collision data from UK national research and police databases. The study characterised collision cases against the requirements of UN Regulation No. 152, using STATS19 and RAIDS data sources. Cases were filtered for eligibility, then scored against current test scenarios using weighted collision characteristics including subject vehicle speed, target vehicle speed, relative speed, ambient light, and overlap. Results indicate the coverage provided by relevant test scenarios and identify which characteristics may address gaps in AEBS operational performance.
Provisional agenda for the first session of the Informal Working Group on Prioritization. The IWG will adopt its agenda, review context from WP.29-199 including the inception report, discuss draft terms of reference distinguishing final objectives such as improvements in safety, emissions, and security from proposed means to achieve them, consider reference documentation from WP.29 and related agreements, discuss prioritization by consolidating a numbered list of all Global Technical Regulation priorities for ranking by WP.29 members to identify common agreement and potential work items to pause, decide on a list of actions with assigned tasks and deadlines, and schedule the next meeting.
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