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.
| Particle Measurement Programme: Agenda for the 57th (October 2026) session |
| Reference Number: PMP-57-03 |
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Agenda items include review of meeting minutes, overview of amendments to Brakes GTR 24 and UN R179, HD brakes and inertia considerations, projects on tyres and brakes including brake emissions from Phase 2 of the DfT Brake and Tyre Emissions Programme and characterization of brake particle emissions from electric vehicles, preliminary results of CPC inter-laboratory exercise on calibration materials, and any other business. |
| Meeting Sessions: 57th PMP session (12 Oct) |
| Document date: 10 Oct 26 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles and UN Regulation No. 179 | Approval of vehicles with regard to the particle emissions of their braking system |
| Click here to view the full document file |
| UN R179: Proposal for a Supplement |
| Reference Number: PMP-57-02 |
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Draft amendments to the proposal to improve and correct the procedure for measuring laboratory brake emissions on light-duty vehicles (GRPE/2026/30). The document establishes scope and application for vehicles of category M₁ and N₁, defines abbreviations and symbols, sets compliance requirements with emission limits for PM10, and specifies test procedures including cooling adjustment, brake bedding, and emissions measurement sections using the WLTP-Brake cycle. It addresses brake corner emission families, type approval requirements, conformity of production testing at least once every 12 months with statistical pass/fail decision charts, and conformity assessment through verification procedures. |
| Meeting Sessions: 57th PMP session (12 Oct) |
| Document date: 10 Oct 26 |
| Relevant to: UN Regulation No. 179 | Approval of vehicles with regard to the particle emissions of their braking system |
| Click here to view the full document file |
| UN R179: Proposal for a new Supplement |
| Reference Number: PMP-57-01 |
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Draft amendments to the proposal to include testing of vehicles with limited speed (GRPE/2026/32). The document provides specifications for brake emissions testing including test-system requirements, climatic conditioning, brake dynamometer setup, sampling procedures, and data analysis methods for measuring particulate matter and particle number emissions from friction brake systems on light-duty vehicles. |
| Submitted by: PMP |
| Meeting Sessions: 57th PMP session (12 Oct) |
| Document date: 10 Oct 26 |
| Relevant to: UN Regulation No. 179 | Approval of vehicles with regard to the particle emissions of their braking system |
| Click here to view the full document file |
| GRPE AV Regulation Screening: Agenda for the 35th (March 2027) session |
| Reference Number: GRPE-TF-AVRS-35-01 |
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Provisional agenda for the 35th meeting of the AVRS Task Force scheduled for 12 October 2026, including adoption of agenda, review of minutes from the previous meeting, discussion of a proposal for a Supplement to the 02 and 03 series of amendments to UN R154, discussion on ADS vehicles and their energy consumption and continuation of the Task Force mandate, a status report on GRPE-95, and any other business. |
| Meeting Sessions: 35th GRPE-TF-AVRS session (16 Mar 2027) |
| Document date: 09 Oct 26 |
| Relevant to: UN Regulation No. 154 | Light Vehicle Emissions Type Approval Test Procedure and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
| Click here to view the full document file |
| Industry Guidelines for LCA of passenger cars and parts: Joint OICA & CLEPA Workgroup results presentation |
| Reference Number: A-LCA-44-06 |
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Presentation of industry guidelines for life cycle assessment of passenger cars and parts developed jointly by OICA and CLEPA members. Guidelines establish common global methodology for LCA data exchange including functional unit definitions for passenger cars and declared units for parts, primary and secondary data requirements, chain of custody aligned models, energy modelling approaches, representative vehicle and part group concepts, and primary data share indicators for business-to-business reporting. |
| Submitted by: OICA and CLEPA |
| Meeting Sessions: 44th A-LCA session (13 Oct) |
| Document date: 09 Oct 26 |
| Relevant to: WP.29 Regulatory Project | Automotive Life Cycle Assessment |
| Click here to view the full document file |
| GTR 25: Proposal for Amendment 2 |
| Reference Number: EVE-100-10 |
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Proposal to amend GTR 25 by modifying requirements for State-of-Certified Energy (SOCE) monitors, battery performance, and in-use verification procedures for heavy-duty electrified vehicles. The amendment refines test procedures for usable battery energy determination through four methods (Methods 1a, 1b, and 2, and an alternative chassis dynamometer method), updates measurement requirements and accuracy specifications, clarifies vehicle selection criteria during certification and Part A verification to establish worst-case configuration by highest UBE value, increases temperature tolerance during test soak to 7°C for improved applicability, revises Annex 2 to reflect additional regional regulatory requirements, and improves descriptions of test methods to enhance applicability and accuracy of results. Implementation occurs following entry into force as specified in regional provisions. |
| Submitted by: EVE |
| Meeting Sessions: 100th EVE session (13 Oct) |
| Document date: 09 Oct 26 |
| Relevant to: GTR No. 25 | Heavy-Duty Electric Vehicle Battery Durability |
| Click here to view the full document file |
| GTR No. 25 Part C: Verification of Reported Virtual Distance Update |
| Reference Number: EVE-100-09 |
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JRC contribution to the EVE IWG on GTR No. 25 virtual distance verification. The document presents verification procedures based on energy throughput and virtual distance for stationary and dynamic tests. It discusses reading on-board values including virtual distance, propulsion energy, total energy throughput, and odometer readings. The document identifies outstanding questions regarding feasibility of using on-board values versus measured values, separation of stationary and dynamic test cases, and measurement approaches for V2X, PTO, and non-traction purposes energy. |
| Submitted by: JRC |
| Meeting Sessions: 100th EVE session (13 Oct) |
| Document date: 09 Oct 26 |
| Relevant to: GTR No. 25 | Heavy-Duty Electric Vehicle Battery Durability |
| Click here to view the full document file |
| UN R154: Proposal to amend WP.29/2026/153 |
| Reference Number: EVE-100-08 |
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Proposal to amend para. 1.1.3. to remove language requiring agreement with authorities regarding methods for customer values when specific methods are applied, delete redundant text already described in para. 1.1.1., and amend paras. 2.1.2. and 3.1.2. to clarify that usable battery energy values including UBE measured are considered as positive values. |
| Submitted by: Japan |
| Meeting Sessions: 100th EVE session (13 Oct) |
| Document date: 09 Oct 26 |
| Relevant to: UN Regulation No. 154 | Light Vehicle Emissions Type Approval Test Procedure |
| Click here to view the full document file |