The UN World Forum for the 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.
| Particle Measurement Programme: Minutes of the 56th (May 2026) session |
| Reference Number: PMP-56.3-10 |
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The 56th PMP session convened online on 7 May 2026 with approximately 70 participants. Meeting minutes from 13 March 2026 were accepted. PMP agreed on a joint neutral template for all task forces. TF3a discussed cooling air adjustment, temperature criteria, and vehicle emission factors, with proposals requested by end of May 2026. TF3b will discuss family building and speed-limited vehicles. TF3c presented brake replacement parts activities. TF4 prepared work package B on electromechanical brakes and requested feedback by end of May 2026. TF5 reported progress on GTR on HD brake particle emissions with test campaigns planned. The next meeting is expected end of June or beginning of July 2026. |
| Meeting Sessions: PMP-56.3 (7 May) |
| Document date: 11 May 26 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles, WP.29 Regulatory Project | Heavy-duty Vehicle Brake Particle Emissions Measurement, UN Regulation No. 179 | Approval of vehicles with regard to the particle emissions of their braking system, and WP.29 Regulatory Project | Approval of Non-Original and Identical Brake Parts with regard to the Particulate Emissions |
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| A-LCA: Proposal for next steps |
| Reference Number: A-LCA-40-04 |
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The A-LCA IWG will confirm open items and agree how to deal with nonagreed items by 12 May. A draft working document will be distributed by 12 June for review and refinement during the week of 6 July. The working document will be finalized by 17 June and distributed for final confirmation by 17 October, with presentation at the 95th GRPE session on 22 October. |
| Meeting Sessions: 40th A-LCA session (12 May) |
| Document date: 11 May 26 |
| Relevant to: WP.29 Regulatory Project | Automotive Life Cycle Assessment |
| Click here to view the full document file |
| A-LCA: Summary of positions on the draft Mutual Resolution |
| Reference Number: A-LCA-40-03 |
| Meeting Sessions: 40th A-LCA session (12 May) |
| Document date: 11 May 26 |
| Relevant to: WP.29 Regulatory Project | Automotive Life Cycle Assessment |
| Click here to view the full document file |
| A-LCA: Draft text for a new Mutual Resolution |
| Reference Number: A-LCA-40-02 |
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Proposal to establish a new Mutual Resolution No. 5 (M.R.5) concerning Automotive Life Cycle Assessment (A-LCA) to provide an internationally harmonised methodology for determining carbon footprint of light-duty vehicles across all life cycle stages—material production, parts production and vehicle assembly, use, and end-of-life—using a level concept that distinguishes four levels of detail based on data availability and study purpose, applicable to different powertrain types and energy pathways, with provisions for energy modelling, recycling methodology, discrepancy and deterioration factors, maintenance assessment, and third-party verification requirements for Levels 3 and 4. |
| Submitted by: |
| Meeting Sessions: 40th A-LCA session (12 May) |
| Document date: 11 May 26 |
| Relevant to: WP.29 Regulatory Project | Automotive Life Cycle Assessment |
| Click here to view the full document file |
| Automotive Life Cycle Assessment: Agenda for the 40th (May 2026) session |
| Reference Number: A-LCA-40-01 |
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The agenda includes review of electricity/energy modeling, OVC-HEV/FCV, and battery/power train replacement. |
| Meeting Sessions: 40th A-LCA session (12 May) |
| Document date: 11 May 26 |
| Relevant to: WP.29 Regulatory Project | Automotive Life Cycle Assessment |
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| Children Left in Vehicles: Agenda for the 17th (May 2026) session |
| Reference Number: CLIV-17-01 |
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The session agenda includes discussion of the current draft UN Regulation for buses and coaches including homework feedback, feedback on the proposal in GRE from the South Korea delegate, preparation for the 1–5 June 2026 GRSP meeting, and any other business. |
| Meeting Sessions: 17th CLIV session (28 May) |
| Document date: 11 May 26 |
| Relevant to: WP.29 Regulatory Project | Children left in vehicles |
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| Event Data Recorders/Data Storage Systems for Automated Driving: Notes from the 32nd (May 2026) session |
| Reference Number: EDR-DSSAD-32-06 |
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The 32nd EDR-DSSAD IWG session convened virtually on May 7, 2026. The previous session report and agenda were approved without objection. Discussion addressed the group’s future structure, with consensus that EDR work continue under GRSG direction while DSSAD work be directed by the ADS IWG. EDR/DSSAD-31-02 on DSSAD regulatory text would be submitted to GRVA in May. A Guidance and Interpretation Document addressing “readily accessible” and access provisions is planned for July submission. EDR Step 2 discussions covered ADDW, DDAW, and DCAS data elements with resolutions agreed at +/-1%, recording intervals for collision scenarios, and outstanding items for June 11 finalization. Future meetings scheduled for June 11, September 8, and October 6-8, 2026. |
| Meeting Sessions: 32nd EDR-DSSAD session (7 May) |
| Document date: 11 May 26 |
| Relevant to: UN Regulation No. 160 | Event Data Recorders, WP.29 Regulatory Project | Data Storage Systems for Automated Driving, and UN Regulation No. 169 | Event Data Recorders (EDR) for heavy vehicles |
| Click here to view the full document file |
| Comments on proposals for EDR Step 2 development |
| Reference Number: EDR-DSSAD-32-05 |
| Submitted by: OICA and CLEPA |
| Meeting Sessions: 32nd EDR-DSSAD session (7 May) |
| Document date: 11 May 26 |
| Relevant to: UN Regulation No. 160 | Event Data Recorders |
| Click here to view the full document file |