| UN R140: ESC Always On considerations |
| Reference Number: GRVA-26-29 |
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FIA invites stakeholders to collaborate on a proposal to improve the assessment and activation criteria for ESC/ESP within UN Regulation No. 140. The initiative is driven by road safety considerations, particularly the prevention of misuse and findings from ESC testing where unexpected system behavior has occasionally been observed. |
| Meeting Sessions: 26th GRVA session (14-18 Sep) |
| Document date: 16 Sep 26 |
| Relevant to: UN Regulation No. 140 | Electronic Stability Control Systems |
| Click here to view the full document file |
| UN R13: Proposal to amend GRVA/2026/35 |
| Reference Number: GRVA-26-37-Rev.1 |
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Proposal to amend Annex 8, paragraph 2.8. to establish performance-based requirements ensuring continuous trailer immobilisation during service brake pressure depletion. The amendment requires that when a trailer is uncoupled and the park brake control is released, braking forces from combined service and parking braking systems shall hold the laden trailer at any time when service brake energy reservoir reduces from 850 kPa to 0 kPa, and that adequate overlap between service brake and spring brake functions be ensured so no loss of holding capability occurs during pressure depletion. |
| Submitted by: CLEPA |
| Meeting Sessions: 26th GRVA session (14-18 Sep) |
| Document date: 18 Sep 26 |
| Document status: Approved by GR |
| Relevant to: UN Regulation No. 13 | Heavy-Duty Vehicle Braking |
| Click here to view the full document file |
| UN R79: Proposal for a Supplement to the 03, 04 and 05 series of amendments |
| Reference Number: GRVA-26-38-Rev.1 |
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Proposal to amend GRVA/2026/34 proposing to amend para. 5.6.1.2.7. to modify the specified maximum RCP operating range from 6 m to 10 m, with provision to extend to a maximum of 15 m if direct line of sight between the remote-control device and the vehicle is ensured. The justification notes that RCP systems with extended ranges are already offered in large markets without regulatory limits, that radio wave-based ranging requires safety margins reducing effective usable range, and that increased range would reduce blind areas behind vehicles and allow drivers to better monitor surroundings while manoeuvring, reducing risks and increasing overall safety. |
| Submitted by: OICA and CLEPA |
| Meeting Sessions: 26th GRVA session (14-18 Sep) |
| Document date: 18 Sep 26 |
| Document status: Approved by GR |
| Relevant to: UN Regulation No. 79 | Steering Equipment |
| Click here to view the full document file |
| AEBS: Testing at Low Ambient Light Conditions in EuroNCAP |
| Reference Number: AEBS-21-02 |
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Summary of “Euro NCAP Technical Bulletin CA 101 – Crash Avoidance” for consideration in the context of UN R152. |
| Submitted by: BASt |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 23 Sep 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| UN R152: Technical requirements and testing methods for AEBS |
| Reference Number: AEBS-21-03 |
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GB 39901:2025 establishes technical requirements and testing methods for advanced emergency braking systems of vehicles of categories M₁ and N₁, based on UN Regulation No. 152, 02 series of amendments and China’s road accident data. Performance requirements cover collision warning and emergency braking for vehicle, child pedestrian, bicyclist, and powered two-wheeler targets, with car-to-car test speeds extended to 80 km/h for M₁ vehicles. The standard includes general requirements, functional safety, electromagnetic compatibility, robustness, false response testing, and optional simulation testing. Night-time scenarios were tested but not adopted as mandatory requirements pending international consensus on test methods. |
| Submitted by: CATARC |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 23 Sep 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| Accident Severity: Update on pedestrian accident data |
| Reference Number: AEBS-21-06 |
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Analysis of pedestrian accident data from the GIDAS database (accident years 2005 onwards) comparing day and night situations across crossing and along-carriageway scenarios. Night situations show higher fatality rates than day situations. Data presented for crossing scenarios with and without obstruction, at junctions, and along straight roads, with documented cases from pure car-to-pedestrian constellations. |
| Submitted by: BASt |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 23 Sep 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| AEBS for M1/N1 Vehicles: Agenda for the 21st (September 2026) session |
| Reference Number: AEBS-21-01-Rev.4 |
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Draft agenda for the Informal working group on Advanced Emergency Braking System meeting 24–25 September 2026. Welcome and Introduction. Approval of the agenda and previous meeting report (AEBS2-02-03). Confirmation of TOR of this informal working group (document GRVA-24-14/Rev.2). Accidentology: share accident data from other CP. Review of existing regulation, technologies and state of the art. Draft state-of-the-art performance requirements for collision scenarios involving pedestrians at night. Other business. List of action items and next meetings. 4th IWG: 2–4 November 2026 in Tokyo. |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 24 Sep 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| Data on night-time accidents in Japan involving AEBS |
| Reference Number: AEBS-21-04 |
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Presentation of traffic accident data for car-to-pedestrian collisions occurring at night in Japan. Approximately 65 to 70 per cent of traffic accidents for car to pedestrian in Japan occur at night-time. The data cover the 10-year period from 2015 to 2024 and analyse obstruction, pedestrian direction of crossing, collision point, walking speed, and age. Seventy per cent of pedestrians cross from the right at night. Accidents involving children aged 12 and under are extremely rare. Vehicle speeds range from 30 km/h to 60 km/h without obstruction and 40 km/h to 50 km/h with obstruction. The proportion of passenger cars equipped with AEBS night-time is approximately half. |
| Submitted by: Japan |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 24 Sep 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| Passenger vehicle AEBS nighttime performance under JNCAP |
| Reference Number: AEBS-21-05 |
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Japan presents the current status of Advanced Emergency Braking System (AEBS) testing for passenger vehicles in night-time conditions under the Japan New Car Assessment Program (JNCAP). The document describes test procedures for car-to-pedestrian scenarios, including car-to-pedestrian farside (CPF) and car-to-pedestrian farside obstructed (CPFO) scenarios, conducted with and without street lighting. Test speeds range from 30 to 60 km/h. Test conditions specify tolerances for vehicle velocity, pedestrian target velocity, lateral position, collision point, yaw rate, steering angular velocity, and braking temperature. |
| Submitted by: Japan |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 24 Sep 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| Methodology for identifying AEBS performance gaps |
| Reference Number: AEBS-21-07 |
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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. |
| Submitted by: DfT |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 24 Sep 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| AEBS: Points for consideration before the 4th IWG session |
| Reference Number: AEBS-21-08-Rev.1 |
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Document confirms homework points for consideration of night-time requirements for car-to-pedestrian scenarios in UN R152. Topics include vehicle categories M1 and N1, crossing and longitudinal collision types, farside/nearside pedestrian direction, pedestrian walking speed of 5 km/h, lighting conditions, collision points at 25%, 50%, and 75%, dummy types, vehicle activation speeds of 30–60 km/h without obstruction and 40–50 km/h with obstruction, and speed reduction. Daytime requirements discussion covers car-to-car speed reduction at 80 km/h, collision point revision, and car-to-pedestrian speed reduction review based on current technology. |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 25 Sep 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| Uniform provisions concerning the approval of motor vehicles with regard to the Advanced Emergency Braking System (AEBS) for M1 and N1 vehicles |
| Reference Number: AEBS-21-09 |
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This regulation establishes uniform approval provisions for Advanced Emergency Braking Systems (AEBS) fitted to motor vehicles of categories M1 and N1. The AEBS shall automatically detect imminent forward collisions with vehicles, pedestrians, or bicycles, provide driver warning, and activate vehicle braking to avoid or mitigate collision severity. The system must meet specified performance requirements under defined test conditions for car-to-car, car-to-pedestrian, and car-to-bicycle scenarios. Requirements include collision warning provision, emergency braking of at least 5.0 m/s², active speed ranges, driver interruption capability, deactivation controls, and warning indications. Testing procedures, vehicle conditions, target specifications, and virtual testing provisions are specified. |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 25 Sep 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| IWG on EDR/DSSAD Status Report |
| Reference Number: GRSG-132-34 |
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Status report on the Informal Working Group on Event Data Recorder and Data Storage System for Automated Driving. The IWG has developed requirements for UN R157, UN R185/GTR, UN R160, and UN R169. DSSAD activities will be removed from the IWG on EDR/DSSAD and assumed by a new IWG on ADS2, pending WP.29 decision. EDR Step 2 work includes proposals for a 03 Series of Amendments to UN R160 and Supplement 3 to UN R169. EDR Step 3 will consider data survivability, triggering sensitivity, data elements, and EDR for category L vehicles, with a proposal planned for April 2027. |
| Submitted by: EDR-DSSAD |
| Meeting Sessions: 132nd GRSG session (28 Sep-2 Oct) |
| Document date: 30 Sep 26 |
| Relevant to: GTR No. 13 | Hydrogen and Fuel Cell Vehicle Safety, UN Regulation No. 160 | Event Data Recorders, UN Regulation No. 157 | Automated Lane-Keeping Systems (ALKS), UN Regulation No. 169 | Event Data Recorders (EDR) for heavy vehicles, and UN Regulation No. 185 | Approval of vehicles with regard to their Automated Driving Systems |
| Click here to view the full document file |
| ADS: Explanation of proposals on user-safety amendments |
| Reference Number: ADS-22-15 |
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Proposal to clarify that the ADS must respond to user requests to deactivate, require multimodal signals at the start of and during deactivation procedures that continue until completion or termination, require escalation of warnings for system-initiated deactivations if the user is not re-engaging as expected, require gradual reduction of ADS control action during deactivation while maintaining safe vehicle control, allow the ADS to retake full control if the vehicle is not being controlled safely, terminate the deactivation procedure if the user is not suitably engaged and the time available to transition has expired, replace the requirement for contact with the steering wheel with being in a physical position to operate the driving controls, suspend non-driving related activities at the start of the deactivation procedure, and modify the DDT section to require fallback to an MRC instead of a deactivation procedure if there is insufficient time for transition. |
| Submitted by: Canada, Finland, Netherlands, Norway, and ETSC |
| Meeting Sessions: 22nd ADS session (6-9 Oct) |
| Document date: 01 Oct 26 |
| Relevant to: WP.29 Regulatory Project | Automated Driving Systems, UN Regulation No. 157 | Automated Lane-Keeping Systems (ALKS), GTR No. 26 | Automated Driving Systems, and UN Regulation No. 185 | Approval of vehicles with regard to their Automated Driving Systems |
| Click here to view the full document file |
| AEBS for M1/N1 Vehicles: Minutes of the 21st (September 2026) session |
| Reference Number: AEBS-21-10-Rev.1 |
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Notes from the 3rd meeting of the IWG on Advanced Emergency Braking System, held online 24–25 September 2026. The group reviewed accidentology data showing that 60–70% of pedestrian accidents occur at night, discussed existing regulations including China’s GB 39901-2025 mandatory standard for M₁ and N₁ vehicles entering into force in 2028, and compared Euro NCAP and JNCAP night-time testing protocols. The group agreed to use a homework list as discussion baseline at the next meeting in Tokyo before amending UN R152 text to include requirements for pedestrian collision scenarios at night with artificial lighting. |
| Meeting Sessions: 21st AEBS session (24-25 Sep) |
| Document date: 05 Oct 26 |
| Relevant to: UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| IWG PMP: Proposal for a new UN Regulation on the Laboratory Measurement of Brake Emissions for Heavy-Duty Vehicles |
| Reference Number: GRPE-95-45 |
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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. |
| Submitted by: PMP |
| Meeting Sessions: 95th GRPE session (14-16 Oct) |
| Document date: 13 Oct 26 |
| Relevant to: UN Regulation No. 13 | Heavy-Duty Vehicle Braking and WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| Outline of 1st DETA/IWVTA Workshop in 2026 |
| Reference Number: IWVTA-52-06 |
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Document outlining the 1st DETA/IWVTA Workshop held on 17 June 2026 in Flensburg, Germany. The workshop covered presentations on what DETA and IWVTA are, industry and government expectations, and issuance and acceptance of IWVTA certificates in the EU. Survey responses from 15 participants, including from Southeast Asian countries, indicated needs for more explanation on DETA access rights, onboarding processes for new Contracting Parties, and clearer guidance on how IWVTA can be modified to suit individual markets. Suggestions included developing supporting materials and guidelines on IWVTA application procedures and organizing a second workshop in Japan or Asia. |
| Meeting Sessions: 52nd IWVTA session (12 Nov) |
| Document date: 13 Oct 26 |
| Relevant to: UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums, UN Regulation No. 0 | International Whole Vehicle Type Approval System (IWVTA), WP.29 Discussion Topic | Database for the Exchange of Type Approval Documentation, UN Regulation No. 155 | Cyber Security and Cyber Security Management, UN Regulation No. 156 | Software Update Processes and Management Systems, and UN Regulation No. 171 | Driver-Control Assistance Systems (DCAS) |
| Click here to view the full document file |
| Brake inertia considering wide range of heavy-duty vehicles |
| Reference Number: PMP-57-12 |
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Presentation on brake inertia determination for potential amendment to heavy-duty brake emission protocol. Currently proposed protocol assumes test inertia determined based on UN R90, but comparison with C-factor from vehicle testing showed significant differences in inertia and actual load during dynamometer testing, with front and rear values differing by up to 2.3 times. Proposes retaining UN R90-based approach as default method while adding alternative inertia determination method considering vehicle mass and multi-axle configurations. Analysis of 43 Japanese market vehicle models showed UN R90-based approach can result in brake loads ranging from 0.1 to 5.7 times those of vehicle-based approach. |
| Submitted by: JASIC and JARI |
| Meeting Sessions: 57th PMP session (12 Oct) |
| Document date: 13 Oct 26 |
| Relevant to: UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums and WP.29 Regulatory Project | Heavy-duty Vehicle Brake Particle Emissions Measurement |
| Click here to view the full document file |
| PMP overview for the 95th GRPE session |
| Reference Number: PMP-57-15 |
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Overview of documents and working party activities for the 95th session of the Working Party on Pollution and Energy (GRPE). Documents address improvements to UN R179 (Laboratory Measurement of Brake Emissions for Light Duty Vehicles) including handling of vehicles with limited speed, brake replacement parts regulation, and GTR 24 (Measurement procedures for Brake corner emission factors). Related documents also cover a new regulation for heavy-duty brake emissions and a new global technical regulation for heavy-duty brakes. Working documents ECE/TRANS/WP.29/GRPE/2026/29, ECE/TRANS/WP.29/GRPE/2026/30, ECE/TRANS/WP.29/GRPE/2026/31, ECE/TRANS/WP.29/GRPE/2026/32, and ECE/TRANS/WP.29/GRPE/2026/53 are submitted. |
| Meeting Sessions: 57th PMP session (12 Oct) |
| Document date: 13 Oct 26 |
| Relevant to: UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums, WP.29 Discussion Topic | Particle Measurement Programme, UN Regulation No. 154 | Light Vehicle Emissions Type Approval Test Procedure, 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 |
| Click here to view the full document file |
| Improving AEBS Regulations: Evidence from Market-Surveillance Safety Vehicle Testing |
| Reference Number: AEBS-22-02 |
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JRC proposes three amendments to UN R152 and UN R131: increase crash avoidance speed to 50 km/h for all scenarios (car-to-car, car-to-pedestrian, car-to-bicycle); increase offset to 50% overlap; and discuss adding standing still pedestrian and bicycle scenarios. Evidence from market-surveillance testing shows current systems already meet the 50 km/h requirement in nearly every test and perform well at 50% overlap. Urban speed limits in 75.9% of R152 applying parties are 50 km/h baseline. Approximately 22% of relevant M1 crashes involved less than 50% overlap. |
| Submitted by: EC |
| Meeting Sessions: 22nd AEBS session (2-4 Nov) |
| Document date: 22 Oct 26 |
| Relevant to: UN Regulation No. 131 | Advanced Emergency Braking Systems and UN Regulation No. 152 | Automatic Emergency Braking for M1/N1 vehicles |
| Click here to view the full document file |
| Status of discussions on a new UNR on CLIV for passenger cars |
| Reference Number: CLIV-22-06 |
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Discussion of the 00 series of UN Regulation on Child Presence Detection Systems for passenger cars, focusing on development of Door Logic Plus concept. Door Logic Plus is defined as a system that improves performance by adding sensors to base door logic, reducing false detections and detection accuracy. The document presents comparative analysis of direct sensing and indirect sensing approaches, including pure door logic with external warning, door logic plus with buckle switch, and door logic plus with occupancy sensor. Additional time needed to develop Door Logic Plus concept and prepare proposal for documentary assessment procedure; proposes different test procedures for direct and indirect sensing systems. |
| Submitted by: JASIC |
| Meeting Sessions: 22nd CLIV session (22 Oct) |
| Document date: 22 Oct 26 |
| Relevant to: UN Regulation No. 157 | Automated Lane-Keeping Systems (ALKS) |
| Click here to view the full document file |
| Particle Measurement Programme: Minutes of the 57th (October 2026) session |
| Reference Number: PMP-57-12 |
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Minutes of a PMP hybrid session held 12 October 2026 at the Palais des Nations in Geneva. Discussion covered amendments to GTR 24 and UN R179 on heavy-duty brake emissions, including new limits for 2030, C-factor measurements, driving modes, brake functions, emission factor calculations, and compliance and conformity of production procedures. Topics included measurement setup, payload factor, test inertia determination methods, inter-laboratory study status with data from 5 labs, and removal of square brackets from GTR text. The group reviewed brake particle emission work from Phase 2 of the DfT programme and preliminary results from a calibration materials inter-laboratory exercise involving 8 labs, recommending continued use of emery oil for annual validation at 23 nm. |
| Meeting Sessions: 57th PMP session (12 Oct) |
| Document date: 27 Oct 26 |
| Relevant to: UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums, WP.29 Discussion Topic | Particle Measurement Programme, 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 |
| Click here to view the full document file |
| Particle Measurement Programme: Minutes of the 57th (September 2026) session |
| Reference Number: PMP-56.5-07-Rev.1 |
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Meeting minutes documenting PMP discussions on amendments to Brakes GTR 24 and UN R179, including TF3a layout and testing topics, TF3b vehicles limited speed work, TF3c brake replacement parts with a new UNR to be introduced, and TF4 electromechanical brakes with no further progress. GTR and UNR informal documents on HD brakes were presented with trailers removed from scope, open points on PM Emission Factor units, caliper position, test input parameters, and cooling air flow value addressed, and a 3-month delay in round robin testing reported. |
| Meeting Sessions: PMP-56.5 (29 Sep) |
| Document date: 27 Oct 26 |
| Relevant to: UN Regulation No. 13 | Heavy-Duty Vehicle Braking, UN Regulation No. 90 | Replacement Brake Linings, Discs, and Drums, 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 |
| Click here to view the full document file |