Provisional annotated agenda for the 95th session of the Working Party on Pollution and Energy. The agenda covers light vehicles including UN Regulations 68, 83, 101, 103, 154 and 180, with multiple proposals from OICA, France and Japan addressing type approval based on reference mass, OBD requirements, battery durability, wind tunnel facilities, Automated Driving Systems, fuel consumption calculations, and testing burden. Heavy duty vehicles agenda includes UN Regulations 49 and 132. Agenda also addresses particle emissions, motorcycles and mopeds, electric vehicles and fast charging, and other standing items.

Schedule and rooms reservation for informal meetings in conjunction with the GRPE session, listing five informal groups meeting 12–13 October 2026 in hybrid format and the WLTP Ad-Hoc and GRPE proper sessions meeting 14–16 October 2026 in person only. Meeting times, rooms, and interpretation services in English, French and Russian are specified.

Running order and tentative timetable for the 95th proper session of GRPE, scheduled for 14–16 October 2026. The agenda covers UN GTR 24 / UN R179 and Particle Measurement Programme, UN Regulations No. 24, 85, 177, light vehicles, heavy vehicles, motorcycles and mopeds, electric vehicles, automotive life cycle assessment, and other topics. Documents received after 9 October 2026 might not be discussed depending on time availability.

Administrative information for the 95th session of GRPE (14–16 October 2026), including opening remarks, venue details, information on the next session scheduled for 6–9 April 2027, submission deadline of 12 January 2027, and requests for documents and presentations in accordance with WP.29-157-24, with requirements for copyright authorization and editable formats for translated materials.

Note by the secretariat reporting on GRPE activities. WP.29/AC.1 adopted all proposals including a new UN Regulation on tyre abrasion. WP.29 agreed to host a demonstration of EV retrofitted vehicles at its 200th session in November 2026. The first meeting of the IWG on prioritization identified topics for discussion including common understanding of prioritization, high-level review of current activities, possible approaches to define prioritization, criteria for establishing new groups, and how to enhance efficiency of informal working groups and task forces. Mongolia acceded the 1958 Agreement. Light duty fuel efficiency improvement trajectory and HDV fuel efficiency measurement harmonization were tackled in GRPE. The UNECE secretary was invited to join a UNEP partnership on battery circularity to be launched in 2027.

This document addresses open issues regarding the Fast Charge Power Curve Resolution draft still under technical discussion where no consensus has been reached by the F&SC Cluster at submission of ECE/TRANS/WP.29/GRPE/2026/52. Open points cover measurement system requirements, test vehicle conditions, test preparation, vehicle preparation phase, parameter definitions, test evaluation tolerance criteria, and data processing and calculation of KPIs including maximum charging power, average charging power in 10–80% SoE range, power curve from 10% SoE to full charge, charging duration, and recharged energy or range in 10 minutes.

Terms of Reference for the UNECE EV fast- & smart-charging cluster, a joint activity of WP.5 e-mobility Task Force and the IWG on EVE. The cluster aims to promote user-friendly, safe and scalable adoption of fast and smart charging functionalities of electric vehicles and their integration in the energy system. Task A develops a new WP.29 resolution on DC Fast Charge Power Curve (FCPC) of electric vehicles in three phases: Phase 1 establishes a harmonized test procedure for light duty vehicles; Phase 2 develops requirements for consumer information and minimum performance requirements; Phase 3 investigates expansion to heavy duty applications. Task B inventories the need for harmonization of other recharging capabilities and recharging documentation, including collecting existing international standards and initiatives, identifying discrepancies and gaps, and issuing a harmonized standardization/regulatory roadmap for smart and bi-directional charging of EVs by vehicle category. Chairmanship is held by The Netherlands from January 2025 to October 2027.

Proposal to replace Annex 1 with revised engine and vehicle characteristics and information concerning the conduct of tests. The new annex specifies requirements for supplying information in triplicate, including details on general vehicle identification, masses and dimensions, energy converters and power plant description, transmission, suspension, and tyres and wheels, along with associated footnotes defining terms and providing technical specifications.

Proposal to amend para. 2.11.1.2.2. in annex B6 of the original series to correct typos, amend para. 4.4.6.2. in annex B8 of the original series to correct notation, and add footnotes below Table 3b in para. 6.7.2. of the 01 series regarding fuel types and vehicle specifications, aligned with the 03 series.

Proposal to amend Appendix 2, paragraph 2.1. in the 02 series and paragraph 2.1.2. in the 01 and 03 series to correct typographical errors introduced in the French versions of WP.29/2025/100, WP.29/2025/101 and WP.29/2025/102.

Proposal to amend para. 9.3.2.1 in annex 4 to correct a paragraph number reference from ‘9.2.3.7.’ to ‘9.3.2.7.’ in the text describing measurement principles. The correction addresses a typographical error introduced in WP.29/2025/94.

This document presents a comprehensive technical roadmap on smart and bidirectional charging for electric vehicles. It reviews standards governing interfaces between vehicles, electric vehicle supply equipment and electricity grids; identifies remaining gaps in standardisation, certification and testing; and recommends actions for global harmonisation. The roadmap focuses on light-duty vehicle categories (M₁, M₂ ≤5 t and N₁), covers communication protocols including ISO 15118-20 and Amendment 1, grid codes across multiple regions, and battery data identifiers under UN GTR No. 22. Key findings include: proprietary solutions and vendor lock-in remain prevalent; ISO 15118-20 has not yet achieved broad interoperability in practice; grid-code conformance regimes for AC bidirectional charging lack mature certification pathways; and end-to-end conformance testing remains immature in major regions. Main recommendations include establishing a Global Task Force on Bidirectional EV Charging, clarifying capability communication, ensuring regulations track standards evolution, extending electromagnetic compatibility requirements to partial-load operation, and maintaining consistency between automotive and energy-sector cybersecurity requirements.

Table presenting subjects under consideration by GRPE, including improvement of exhaust emissions requirements for real-world performance, introduction of Euro 7 emission provisions for light and heavy-duty vehicles, gradual updating of UN R40 to state-of-the-art emission limits, decarbonization implementation, life cycle assessment, new propulsion energy development, EV/HFCV retrofit systems, particulate emissions reduction, brake emissions, tyre wear emissions, and screening of GRPE Regulations for autonomous vehicles readiness. Timelines range from October 2025 to March 2028.

Proposal to amend Appendix 5 (Devices for monitoring on board the vehicle the consumption of fuel and/or electric energy) of Working Document ECE/TRANS/WP.29/2026/153 to specify parameters to be determined, stored and made available by OBFCM devices for pure ICE and NOVC-HEVs, OVC-HEVs, PEVs, NOVC-FCHVs, OVC-FCHVs, and mono-fuel gas vehicles. The modification excludes a manufacturer-specific parameter and aligns with international standards for OBFCM requirements.

Explains the proposal 95-15

Japan presents positions on working documents for UN R168 (Real Driving Emissions). Japan does not accept the Level 1C concept, proposes deleting the type-approval scheme for equipment to eliminate unnecessary burden, and recommends adding technical requirements for laboratory equipment instead. Japan expresses technical concerns regarding sampling line temperature limits, text structure requiring restructuring, and hydrogen ICE provisions including dry-wet correction applicability and trip validity methods for bi-fuel vehicles.

Industry guidelines developed jointly by CLEPA and OICA to provide a harmonised methodology for determining the carbon footprint of passenger cars through their full life cycle, from material extraction through production, use, and end-of-life. The guidelines establish four levels of assessment based on data granularity and intended application (ranging from public policy analysis to detailed supply-chain reporting), with fixed methodological approaches for Levels 3 and 4. They specify treatment of GHG emissions including biogenic carbon, land use change, and fossil emissions; define data quality requirements including primary data collection and allocation procedures; and establish system boundaries across material production, parts and vehicle assembly, use, and end-of-life stages, employing the Circular Footprint Formula for material recycling assessment.

Joint OICA and CLEPA workgroup presentation on industry guidelines for life cycle assessment of passenger cars and parts. The guidelines establish a common global methodology for LCA data exchange along the supply chain, independent of regulatory development. Key technical points include defining functional units for passenger cars and a declared unit for parts, specifying primary and secondary data requirements, addressing chain of custody through aligned models and mass balance approaches, allowing mixed energy modelling approaches with market-based modelling for decarbonisation efforts, introducing representative vehicles for full vehicle LCA reporting, and introducing representative parts to simplify supplier reporting to OEMs.

Proposal to amend Annex 2, point 0.8. of Section I to add a footnote clarifying that documentation of name(s) and address(es) of assembly plant(s) shall only be applicable when the manufacturer’s information document in accordance with Part 2 of Annex 1 was supplied for type-approval purposes. UN Regulation No. 168 includes two versions of the manufacturer’s information document; Part 1 applies when all vehicles covered are also type-approved according to UN Regulation No. 154, while Part 2 applies when at least one vehicle is not covered by UN Regulation No. 154 type-approval.

Proposal to amend Annex 4, paragraph 9.8.3. to clarify that the ‘OBM transmission hash validity status’ indicates hash function computation completion, and amend Annex 5, paragraph 2.2.4.3. to correct quotation mark placement for consistency with other parts of the Regulation.

Proposal to amend para. 14.1., 14.2., 14.3., and 14.4. to update references from UN GTR No. 15 to UN Regulation No. 154 and introduce declarations of compliance options, amend Annex 4a paras. 5.1. and 2. to reference UN R154, amend Appendix 7B paras. 1. and 2.1. and footnote 1 to reference UN R154, amend para. 12. to introduce transitional and special provisions, insert new paras. 12.3.1., 12.3.2., 12.4.1., and 12.4.2. for armoured vehicles and hearses, insert new Point 1.0. in Annex 2 Section I, insert new para. 12.2.4. in the 08 Series, amend para. 9.3. in the 08 Series to change reference date from registration to production, amend para. 9.2.2. in the 09 Series to change reference date from registration to production and extend in-service conformity checking period to 200,000 km or 10 years, insert new definitions paras. 2.65. and 2.66. in the 09 Series, and amend Annex 12 para. 1.(e) in the 09 Series.

Proposal to amend Annex 5, para. 4.1.1. to distinguish between vehicles not utilising and utilising Over-the-Air data transmission of battery durability parameters, insert new paras. 4.1.3. to 4.1.3.2. for Over-the-Air transmission cases, amend para. 4.1.2. to reserve the certificate of compliance requirement, amend para. 4.2. regarding Part B verification by responsible authorities, insert new para. 4.2.1. for OBM data transmitted to authorities’ servers, amend para. 4.3. to establish pass/fail criteria where a battery durability family passes if equal to or more than 90 per cent of monitor values are above the MPRi or DPRi, and insert new para. 4.4. requiring corrective measures in case of a fail decision.

Proposal to amend Annex 5 para. 4 to introduce usage of Over-the-Air battery durability data transmitted by the On-Board Monitoring system for In-Service Conformity verification, insert new paras. 4.1.3. to 4.1.3.2., 4.2.1., and 4.4. to 4.6., and amend paras. 4.1.1., 4.1.2., 4.2., and 4.3. to specify verification procedures for vehicles with and without Over-the-Air data transmission, define statistically adequate sample requirements, establish pass/fail criteria based on monitor values, and introduce corrective measures in accordance with UN Global Technical Regulation No. 24.

Proposal to clarify applicable FCV test procedure, align run-in provisions with UN-R154, add SOC correction and modern hydrogen measurement provisions, correct inconsistencies, update hydrogen fuel specifications, and replace outdated UN GTR No. 15 reference in UN-R101 with UN-R154 for alternative road load determination.

Proposal to insert a new definition of hydrogen ICE vehicle, add a note to paragraph 6.1 specifying emissions requirements for 4-phase and 3-phase WLTC analysis, amend paragraphs 8.2, 9.3.1, 9.5, 10.2, 10.6, and 10.7 to clarify trip validity assessment procedures, amend Figure 6 to reflect updated assessment procedures, amend Table A4/1 to add engine fuel flow parameter and clarify mandatory parameters for hydrogen ICE vehicles, insert a new row in Table A5/1 for hydrogen, amend Annex 6 paragraph 3.2.2 to require engine speed and torque recording for hydrogen ICE vehicles, insert hydrogen in Table A7/1, retitle Annex 8, amend Annex 8 paragraph 1 to clarify application of moving averaging window method, and add new Annex 8a establishing an alternative moving averaging window methodology based on engine work for hydrogen ICE vehicles, and amend Annex 11 paragraphs 2, 3.1, and 3.2 and Figure A11/1 to incorporate work ratio calculations for hydrogen fuel tests.

Proposal to amend para. 3.7.1. to define rated engine power by reference to UN R85 or UN R177, modify para. 6.3.2.2. to specify applicability to Level 1A only (original and 02 series) or 4-phase WLTP test only (01 and 03 series), amend para. 6.3.2.3. to apply only to Level 1B (original and 02 series) or 3-phase WLTP test (01 and 03 series), modify Annex B1 para. 2.3.2. to except PEVs from Class 3 classification for Level 1B only (original and 02 series) or 3-phase WLTP test only (01 and 03 series), amend Annex B4 para. 6.2.1. and 6.2.4. regarding facility approval duration and validation, and modify Annex B8 para. 1.4., 3.4.1., and 4.1.2. to specify applicability to Level 1B or 3-phase WLTP test and adjust vehicle classification and testing requirements accordingly.

Proposal to amend Annex A1 points 3.2.12.2.10.2. to 3.2.12.2.10.5. to clarify that information on periodically regenerating systems is not applicable when a Declaration of Compliance for Regeneration Requirements is used, amend Annex A1 points 3.2.20.2.5. to 3.2.20.2.7.1. to clarify that information on heat storage and Ambient Temperature Correction Test is not applicable when a Declaration of Compliance for the ATCT is used, amend Annex A1 points 9.10.5., 9.10.5.5., 9.10.5.6. and 9.10.5.7. to limit applicability of heating system information to vehicles subject to Annex B10, and add explanatory notes (t), (u), and (v).

Proposal to amend para. 6.7.2.2. of Annex B4 to clarify the use of aerodynamic force values for body components and optional equipment, amend para. 3.2.3.2.2.3. of Annex B7 to update terminology from optional equipment to body components and/or optional equipment and to expand the alternative method to Level 1B, and amend para. 3.2.3.2.2.3.2.1. to require manufacturers to declare identifying information for simulation software and calculation conditions to be documented in test reports and agreed with the responsible authority.

Proposal to amend para. 6.2.4. of Annex B4 to separate force measurement accuracy verification from other measurements taken at three-monthly intervals, requiring force measurement accuracy to be verified upon initial installation, after major maintenance and within 370 days before testing, and to require that each combination of wind speeds used for road load determination be validated separately.

Proposal to amend para. A.1.3.2.1. to modify the PEMS consistency check of exhaust mass flow and gas concentrations for fuels with a molar carbon to hydrogen ratio of 0. For such fuels, the formula in para. 8.4.1.6. of Annex 4 shall be used instead, with Equations 30 and 31 applied for Type 1A dual-fuel hydrogen engines. The verification shall not apply to engines operated on non-carbon fuels or dual-fuel engines when operated in dual-fuel mode with at least one fuel having a molar carbon to hydrogen ratio of 0.

A presentation on industrial retrofit as a transition solution for decarbonizing the existing vehicle fleet. Industrial solutions are available and scaling up, but lack of harmonized regulatory requirements is hindering deployment. Differences in national regulatory frameworks directly affect retrofit sector development across countries. Testing at vehicle level is necessary to account for retrofit system impacts. A forthcoming UNECE Regulation should provide a clear approval framework, establish a streamlined approval process, and ensure mutual recognition of approvals granted by Contracting Parties.

Proposal to introduce UBE_certified in the templates for the information document and WLTP test report under Annex A1 to UN R154. The proposal requests clarification on the number of significant figures for Usable Battery Energy of the vehicle at certification in the information document and seeks confirmation that the test result needs to be within 2 per cent of the declared value in the WLTP test report.

Proposal to:

• Insert a new para. 4 and 5 to the introduction of the 02 series and para. 5 and 6 to the introduction of the 03 series clarifying that the 03 series includes harmonised procedures and that amendments account for vehicles of categories X and Y equipped with Automated Driving Systems,
• Amend para. 2.1. to add ADS to general abbreviations,
• Amend para. 3.2.5., 3.2.31., 3.2.37., 3.5.8., 3.5.9., and 3.5.12. to include vehicle user terminology,
• Insert new para. 3.5.13. to 3.5.16. defining ADS road load determination mode, ADS testing mode, ADS user, and vehicle user,
• Amend para. 3.10.1., 3.10.4., and 3.10.20. concerning On-Board Diagnostic systems and malfunction indication to reference vehicle users and ADS,
• Insert footnote definitions referencing ECE/TRANS/WP.29/2026/153,
• Amend multiple paragraphs throughout Annexes A1, B4, B6, B8, C3, C4, and C5 to accommodate ADS operation,
• Insert new para. 4.2.1.8.6. to Annex B4 specifying ADS road load determination mode requirements for vehicles of categories X and Y,
• Insert new para. 2.4.2.7. to Annex B6 specifying ADS testing mode functional requirements,
• Amend various provisions concerning driver-selectable modes, reagent warning and inducement systems, and OBD monitoring to apply to vehicles equipped with ADS.

Status update on Euro 7 transposition into UN Regulations for light-duty and heavy-duty vehicles. LDV application dates: 29 November 2026 for new types and 29 November 2027 for all new vehicles, with implementing acts adopted by 29 May 2025. HDV application dates: 29 May 2028 for new types and 29 May 2029 for all new vehicles, with implementing acts adopted by 29 November 2026. Brake emissions application: 1 January 2030 (LDV second phase) and 1 January 2030–1 January 2035 (HDV phases). Tyre abrasion under UN Regulation No. 186: 1 July 2028 (C1 class) and 1 April 2030–1 April 2032 (C2–C3 classes).

Updates on inclusion of GRPE Regulations in Regulation 0 (IWVTA): Regulations 85 and 154 currently required for U-IWVTA; Series 09 of Regulation 0 will update R-154 to the 04 series at November 2026 WP-29 session. Questions raised regarding immediate inclusion of Regulations 177, 179, and 180, with Japan noting non-application of R-179 and R-180. IWVTA and DETA workshop held June 2026 in Flensburg, Germany, with growing Asian interest. Discussion of requirement for Level 2 approval to Regulation 154 for universal approval to Regulation 0, while many Contracting Parties require only lesser levels or previous series compliance. Brake particle emissions regulation will require Type Approval information release via TAA.

Proposal to expand the CFD alternative method to Level 1B and parts changed in minor model changes, with examples of applicable aerodynamic components that may change with MMC in the scope of the CFD alternative method.

Proposal to amend UN R49 to approve the use of hydrogen dual-fuel as a fuel in type approval of emissions for heavy-duty vehicles. The amendments introduce new requirements for measuring instruments such as FT-IR and QCL-IR, add symbols and specifications for hydrogen-fuelled engines specifying that only Type 1A hydrogen fuel is applicable, amend emission calculation formulas for ETC/ESC and WHDC test procedures, add new HO direct measurement methods for NOx wet correction calculation, and add declaration formats for FT-IR and QCL-IR approval.

Proposal to insert new definitions for ‘Instrument manufacturer’ and ‘Type of analyzer’, add symbols and abbreviations for hydrogen, water, ammonia, nitrogen dioxide, oxygen and particulates, add abbreviations for flame ionisation detector, Fourier transform infrared analyser, non-methane cutter and quantum cascade laser mid-infrared detection, amend provisions for hydrogen Type 1A dual fuel engines, modify fuel temperature requirements, insert procedures for water measurement using QCL-IR and FTIR analysers, add FTIR and QCL-IR analyser requirements and interference verification procedures, insert protocols and certificates for FTIR and QCL-IR analyser assessment, add fuel types including hydrogen, modify measurement procedures for dual-fuel hydrogen engines, and update related calculation methods and specifications throughout Annexes 4A, 4B and 11.

Proposal to amend para. 3.5.1. to include dual-fuel engines of Type 1A with hydrogen as gaseous fuel, amend para. 4.12.3.3.7. to establish a series of digits identifying dual-fuel engine types in the approval mark, insert new definitions for ‘Instrument manufacturer’ and ‘Type of analyzer’ in Annex 4 para. 3.1., insert new symbols and abbreviations in Annex 4 paras. 3.4. and 3.5., amend paras. 7.6.6., 7.7.4., and 8.1.1. to accommodate H₂O measurement and hydrogen engine calculations, amend para. 8.4.2.1., amend para. 8.6.2. to exclude CH₄ calculation when measured by FTIR or QCL-IR, amend para. 9.3.1.8. regarding gas drying, amend para. 9.3.2. to introduce FTIR and QCL-IR analyzers for CO, CO₂, CH₄, and NOx measurement with specifications in paras. 9.3.2.8. and 9.3.2.9., insert new para. 9.3.2.10. for independent analyzer assessment, amend para. 9.3.9. and para. 9.3.9.2.2. regarding interference effects and water quench checks, insert new paras. 9.3.9.5. and 9.3.9.6. for FTIR and QCL-IR interference checks, amend Annex 4 Appendix 2 para. A.2.1.2., amend Annex 4 Appendix 5 para. A.5.2., insert new Annex 4 Appendix 9 establishing procedure for H₂O measurement, insert new Annex 4 Appendix 10 for FTIR and QCL-IR analyzer assessment protocol, insert new Annex 4 Appendix 11 establishing model certificate for analyzer assessment, amend Annex 8 Appendix 1 paras. A.1.1., A.1.2.2., A.1.3.2.1., A.1.4.1., and A.1.4.3. for Type 1A hydrogen dual-fuel engines, amend Annex 15 paras. 4.2.2.3., 6.1., 10.3., and Appendix 4 paras. A.4.3.1., A.4.4.1.1., A.4.4.3.1., and A.4.4.3.3.

Status report on the EV Fast & Smart Charging cluster’s progress on two main activities: developing the Fast Charge Power Curve (FCPC), a resolution for a test procedure and KPIs, with eight open points requiring validation and verification; and developing a global roadmap on smart and bidirectional charging, which is finalised and to be published as a UN publication in Q1 2027. The cluster’s mandate has been extended for one year to October 2027 to continue validations, resolve open points, and investigate future work including review clauses and a fast charging performance test for heavy-duty vehicles.

Proposal to amend and enhance the procedure for laboratory measurement of brake emissions for light-duty vehicles. The document provides comprehensive technical specifications covering scope and application for vehicles of categories M₁ and N₁, detailed abbreviations and symbols for measurement parameters, definitions of vehicle types and brake systems, application and approval procedures, conformity of production requirements with statistical evaluation procedures, and penalty provisions for non-conformity. Testing procedures include three sections: cooling air adjustment, brake bedding, and brake emissions measurement, all executed using the WLTP-Brake cycle comprising ten trips and 303 brake deceleration events. CoP verification shall be performed once every 12 months with samples from each brake corner emission family, evaluated according to decision charts specified in the regulation.

Proposal to amend UN Regulation No. 179 to include testing of vehicles with limited speed. The document specifies amendments to the laboratory measurement of brake emissions for light-duty vehicles, including provisions for vehicles with a maximum speed lower than the maximum speed of the Base cycle. These vehicles may be part of the same brake corner emissions family as vehicles suitable for the Base cycle, with their emission factor calculated based on the parent family’s reference PM and PN emissions according to equations 7.1, 7.2 and 7.3. At the manufacturer’s request and with approval authority agreement, such limited-speed vehicles may be assigned to a specific family using the adjusted cycle described in Appendix 3 of Annex 4, with the same changes to be applied to UN GTR No. 24.

Proposal to establish a globally harmonised laboratory methodology for measuring brake particulate matter (PM) and particle number (PN) emissions from heavy-duty vehicles, including trucks and buses, using a Worldwide Harmonized Heavy Duty Vehicles Brake Cycle (WHBC) and brake dynamometer testing. The GTR specifies test system requirements, including brake enclosure design, sampling tunnel specifications, climatic conditioning with cooling air temperature maintained at 23°C±2°C and relative humidity at 50%±5%, cooling airflow at 2500 Nm/h±5%, test preparation procedures, brake bedding with six repetitions of the WHBC followed by emissions measurement during one WHBC cycle, requirements for PM10, PM2.5, TPN10, and SPN10 measurement systems, brake temperature measurement using embedded thermocouples, calibration and validation procedures, and reporting of emission factors. The regulation applies to vehicles of categories M₂, M₃, N₂, N₃ [and O₃, O₄] with friction braking systems.

Final status report on development of a new UN GTR for laboratory measurement of brake particle matter (PM) and particle number (PN) emissions from heavy-duty vehicles. The GTR introduces brake emissions groups based on fundamental design and performance characteristics, defines brake group nominal test parameters by disc or drum diameter, establishes friction braking share coefficients with c-factor = 1 for full-friction braking, specifies required test input parameters including brake system type and filtering systems, prescribes the Worldwide Harmonized Heavy-Duty Brake Cycle (WHBC) comprising 246 brake events over 5:39 hours across urban, rural, and motorway segments, defines PM and PN measurement methodologies using gravimetrical and particle number counter methods, specifies hardware requirements including brake dynamometer, enclosure dimensions of 1950 mm length × 1000 mm height × 700 mm depth with divider plate, sampling tunnel with 300 mm fixed inner diameter, and brake temperature measurement by embedded thermocouples, and includes results of preliminary interlaboratory study.

Proposal to establish a UN Regulation for laboratory measurement of brake particle emissions from vehicles of categories M₂, M₃, N₂ and N₃ using friction braking systems. The regulation specifies test procedures including brake bedding and brake emissions measurement using the Worldwide Harmonized Heavy Duty Vehicles Brake Cycle, defines brake emissions groups and representative configurations for testing, establishes emission limits by vehicle category and powertrain technology (though limits marked as ‘not yet specified’ in the provided draft), requires conformity of production testing with statistical verification procedures, and sets technical requirements for brake dynamometer systems, brake enclosure design, sampling tunnels, cooling air conditioning, particulate matter and particle number measurement systems, and data acquisition.

Proposal to establish uniform provisions for approval of non-original replacement and identical brake pads, drum brake linings, brake discs, and brake drums for vehicles of category M₁, N₁, and N₂ between 3.5 and 5 tonnes maximum mass. The regulation applies brake emission testing procedures and particle emission limits by vehicle category and powertrain technology, with PM10 limits ranging from 3 mg/km for PEV vehicles of categories M₁ and N₁ to 11 mg/km for N₁ Class III and N₂ vehicles. Brake parts must be assigned to families based on characteristics including calliper type, axle location, friction material formulation, disc or drum material, brake disc surface form, pad surface area, and drum diameter. Approval requires testing of a family parent brake assembly and includes conformity of production requirements with annual sampling and statistical verification procedures.

Explanatory document on proposed amendments to UN R168 to enable real driving emissions testing of hydrogen internal combustion engine vehicles. The work-based approach replaces the CO-based moving averaging window methodology currently inapplicable to hydrogen-fuelled vehicles. Engine speed and torque data replace carbon monoxide to define window size and calculate the RDE/WLTP work ratio. Testing of a light commercial vehicle demonstrates the methodology’s practical applicability under regular and severe driving conditions, with results processed through independent post-processing tools.

The A-LCA IWG has decided not to submit a Working Document due to inability to reach agreement on outstanding issues. The IWG requests GRPE review and acceptance of revised Terms of Reference reflecting a shift toward information and technical exchange rather than developing a Resolution. Key unresolved contradictive issues include definitions, system boundaries, chain of custody, electricity modelling, prospective energy modelling, use stage provisions, deterioration factors, methane leakage, and methodologies for component replacements. Future activities will shift to information exchange with reduced meeting frequency pending establishment of a clear timeline for developing A-LCA methodology.

Terms of reference for the IWG on A-LCA, which will develop an internationally harmonised procedure to determine the carbon footprint of automotive products across their life cycle from production to use and disposal. Working items include defining scope according to ISO 14040, conducting inventory analysis, and defining the format and minimum contents of the A-LCA report. The IWG mandate ends in December 2026, with possible adoption of the resolution by WP.29 in November 2026. The group is open to all experts from any country or organisation of WP.29, chaired by Japan and Republic of Korea, with technical secretaries from OICA, E-Mobility Europe, and Japan.