The UN World Forum for Harmonization of Vehicle Regulations (WP.29) enables governments to cooperate internationally in developing vehicle regulations concerning safety, environmental performance, and energy efficiency.
GlobalAutoRegs is a technical resource for members of the regulatory affairs community interested in this international collaboration.
| GTR 21: Improvement proposal for phase 4 |
| Reference Number: EVE-99-13 |
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Proposal to improve efficiency of test methods by adding a reference to SAE J1349 or applicable local regulations, in addition to UN R85 and ISO 1585, to para. 6.1.2. and para. 6.1.2.1., and delete the requirement for Current integration measurement from para. 5.2.1. The additions provide consistency throughout the regulation and clarify that test results obtained in accordance with applicable local regulations are considered valid. The deletion removes an inconsistency whereby only Current integration measurement specifies a frequency of 20 Hz, while other items specify at least 10 Hz, and eliminates inapplicable wording carried over from UN R154. |
| Submitted by: Japan |
| Meeting Sessions: 99th EVE session (8-9 Sep) |
| Document date: 04 Sep 26 |
| Relevant to: GTR No. 21 | Electric Vehicle System Power Determination |
| Click here to view the full document file |
| GTR 21: Proposal to introduce provisions for fuel-cell vehicles (FCV) |
| Reference Number: EVE-99-14 |
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Proposal to:
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| Submitted by: China |
| Meeting Sessions: 99th EVE session (8-9 Sep) |
| Document date: 04 Sep 26 |
| Relevant to: GTR No. 21 | Electric Vehicle System Power Determination |
| Click here to view the full document file |
| GTR 25: Comments for further development of the GTR |
| Reference Number: EVE-99-12 |
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Japan proposes to add a specific requirement for vehicle speed measurement frequency of 20 Hz in Table A3/1 of Annex 3, consistent with UN R154; revise para. 2.4 to clarify that both constant and transient cycles test methods are permitted; delete redundant text from para. 2.4.1 regarding test cycle requirements; and delete from para. 5.1 the requirement that resolution and method for SOCE availability be determined in agreement with authorities, as these are already specified. |
| Submitted by: Japan and JASIC |
| Meeting Sessions: 99th EVE session (8-9 Sep) |
| Document date: 04 Sep 26 |
| Relevant to: GTR No. 25 | Heavy-Duty Electric Vehicle Battery Durability |
| Click here to view the full document file |
| Electromagnetic Compatibility: Agenda for the 54th (September 2026) session |
| Reference Number: EMC-54-01 |
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The agenda includes a roadmap for the 08 series of amendments with proposals from contracting parties and non-governmental organisations, discussion of numerous technical documents covering harmonics, flicker requirements, charging conditions, immunity testing, radiated emissions, and blind spot detection systems. Referenced documents include EMC-52-05, EMC-53-05, EMC-53-10, EMC-53-11/Rev.1 from previous sessions. Subsequent meetings are scheduled online from December 2026 through July 2027, with a face-to-face meeting proposed in November 2027. |
| Submitted by: EMC |
| Meeting Sessions: 54th EMC session (7 Sep) |
| Document date: 04 Sep 26 |
| Relevant to: UN Regulation No. 10 | Electromagnetic Compatibility |
| Click here to view the full document file |
| GRSP AV Screening: Minutes of the 27th (July 2026) session |
| Reference Number: GRSP-TF-AVRS-27-12 |
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Minutes from the 27th meeting of GRSP TF on AVRS held Wednesday 1st July 2026 online. The agenda and previous minutes were approved. EC reported from June WP.29-199 TF Expert FADS and presented WP.29-199-19. GRSP TF AVRS must complete crashworthiness regulation for Category Y and Pedestrian Protection R127, GRE TF AVSR ADS marker lamps, GRE IWG EMC refinements for ADS in 10R08, and GRPE TF AVRS amendments to UN Regulation No. 154. Regarding amendment proposals to UN Regulations Nos. 35 (ECE/TRANS/WP.29/2026/104) and 68 (ECE/TRANS/WP.29/2026/146), AC.1 postponed voting to the next session due to required quorum not being attained. EC presented updates on Y-category regulatory framework for N1, Y-category Pedestrian Protection UN Reg 127, and UN Regulation No. 42 and 134. Next meetings scheduled 4th September, 5th October, week 4, 24th November or 1st December, and 7–11 December. |
| Meeting Sessions: 27th GRSP-TF-AVRS session (1 Jul) |
| Document date: 03 Sep 26 |
| Relevant to: UN Regulation No. 42 | Front and Rear Protective Devices, UN Regulation No. 127 | Pedestrian Safety, UN Regulation No. 134 | Hydrogen fuel cell vehicle safety, WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles, and WP.29 Regulatory Project | Approval of vehicles of category Y (without occupants) with regard to their crash safety |
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| CS/OTA Task Force: Minutes of the 39th (September 2026) session |
| Reference Number: TFCS-39-13 |
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The UN IWG on Cyber Security and OTA issues held its 39th session on 3 September 2026. The provisional agenda (TFCS-38-01/Rev.3) and minutes from the 38th session (TFCS-38-13) were adopted. Regarding R155 amendments: multistage vehicle proposals (GRVA/2026/28, GRVA/2026/29, TFCS-39-08) will be submitted as informal documents with a merged paragraph; component approval proposals (TFCS-39-04) had STU references removed and discussion continues; remote operation for ADS proposals were not discussed but participants are invited to consider a general refresh of Annex 5. RXWIN application proposals (TFCS-39-05, TFCS-39-06, TFCS-39-07, TFCS-39-08, TFCS-39-09, TFCS-39-10, TFCS-39-11, TFCS-39-12) were presented; items 1, 4, and 6 were agreed, item 5 was agreed in principle, and items 2 and 3 regarding R155 and R157 applicability require revised wording. Netherlands expressed concerns about vehicle discontinuation and multiple type approvals. Administrative provisions regarding Type Approval Authority for CSMS/SUMS (GRVA/2026/30, TFCS-39-02, TFCS-39-07) were discussed without consensus. Out-of-scope vehicle approvals (TFCS-38-03) discussion was deferred to a separate workshop. Two informal documents will be provided to GRVA. |
| Meeting Sessions: 39th TFCS session (3 Sep) |
| Document date: 04 Sep 26 |
| Relevant to: United Nations Agreement | RE3 Construction of Vehicles, UN Regulation No. 155 | Cyber Security and Cyber Security Management, and UN Regulation No. 156 | Software Update Processes and Management Systems |
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| EqOp: Preparation for the workshop on frontal collisions |
| Reference Number: EqOP-TF4-06-05 |
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This document provides background material for an IWG EqOP workshop scheduled for November 2026 in Tokyo to draft conceptual ideas for assessing robustness of vehicles in frontal crashes using a holistic approach complementing current ATD-based requirements. The workshop aims to protect occupants of varying body height, weight, shape, and seating position by maintaining structural integrity and effective safety systems. Two sessions are planned: identifying issues needing solutions through field data and EqOP priorities from GRSP-78-07, and reviewing regulatory solutions including current regulations R16, R94, and R137, with consideration of ATD and HBM roles. |
| Meeting Sessions: 6th EqOP-TF4 session (7 Sep) |
| Document date: 04 Sep 26 |
| Relevant to: WP.29 Discussion Topic | Equitable Occupant Protection |
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| EDR and Driver Drowsiness and Attention Warning (DDAW) recording duration |
| Reference Number: SG-EDR-48-11 |
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A study of 24 professional truck drivers investigated how drowsiness develops during real-road driving to test a DDAW system. At night, 17 of 24 drivers reached a KSS level of 8, with average time to reach KSS 8 being 56 minutes. Ten drivers chose to stop or were requested to stop in the sleep-deprived condition. A DDAW recording window of 600 s would fail to capture information relevant to the EDR, whereas time windows of up to one hour could provide important indications of increased driver fatigue. |
| Submitted by: BASt |
| Meeting Sessions: 48th SG-EDR session (15-16 Sep) |
| Document date: 04 Sep 26 |
| Relevant to: UN Regulation No. 160 | Event Data Recorders, UN Regulation No. 169 | Event Data Recorders (EDR) for heavy vehicles, and UN Regulation No. 182 | Driver Drowsiness and Attention Warning Systems |
| Click here to view the full document file |