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.
| GTR 22: Minimum performance requirements-Additional Lifetime LDV |
| Reference Number: EVE-97-08 |
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The presentation reports results from performance-based models for electric passenger vehicles and electric vans, analyzing capacity retention and capacity fade at 5, 8, and 10 years and at 100,000 km, 160,000 km, and 200,000 km driving distances. Results show capacity retention exceeding 60 per cent at 10 years and 200,000 km for vans with Li-Ion NCM-LMO (2015) battery technology, and exceeding 65 per cent for battery electric vehicles under the same conditions. |
| Submitted by: JRC |
| Meeting Sessions: 97th EVE session (19-20 May) |
| Document date: 19 May 26 |
| Relevant to: GTR No. 22 | Electrified Vehicle Battery Durability |
| Click here to view the full document file |
| Next step of GTR No. 25: HDV Minimum Performance Requirements, lifetime and metric revision |
| Reference Number: EVE-97-07 |
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UN GTR No. 25 addresses minimum performance requirements, lifetime requirements, and metrics for heavy-duty vehicles. Lifetime requirements are 12 years and 700,000 km or 15 years and 875,000 km for Category 1-2 vehicles exceeding 7.5 tonnes and Category 2 vehicles exceeding 16 tonnes. An optional annex proposes different metrics including years, kilometres whichever comes first, and energy throughput in monitoring. Capacity retention requirements for Nā vehicles exceeding 16 tonnes are specified at 12 years and 700,000 km and at 15 years and 875,000 km. |
| Submitted by: JRC |
| Meeting Sessions: 97th EVE session (19-20 May) |
| Document date: 19 May 26 |
| Relevant to: GTR No. 25 | Heavy-Duty Electric Vehicle Battery Durability |
| Click here to view the full document file |
| Electrification of the Norwegian LDV and HDV sector |
| Reference Number: EVE-97-05 |
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The document presents Norway’s electrification progress for light duty vehicles (LDVs) and heavy duty vehicles (HDVs). Norway has 994,000 electric LDVs and 5,300 electric HDVs from a total fleet of 3.4 million LDVs and 73,000 HDVs. In April 2026, EV market share reached 98.6 percent with 107 municipalities achieving 100 percent market share. The document reports EVs represent 2-7 percent of registered vehicle fires, with fossil fuelled vehicles accounting for up to 90 percent. Research findings indicate battery degradation is driven by operating conditions, with cold climate introducing dual effects and battery management systems being key durability drivers. |
| Submitted by: NPRA |
| Meeting Sessions: 97th EVE session (19-20 May) |
| Document date: 19 May 26 |
| Relevant to: GTR No. 22 | Electrified Vehicle Battery Durability and GTR No. 25 | Heavy-Duty Electric Vehicle Battery Durability |
| Click here to view the full document file |
| GTR 22: SOCE readiness |
| Reference Number: EVE-97-04 |
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GTR 22 proposes introducing a State of Certified Energy (SOCE) Readiness Status to determine when sufficient enabling conditions exist for accurate battery State of Health calculations. Manufacturers shall make SOCE values easily available to vehicle owners via dashboard, infotainment, or mobile application and provide procedures for owners to achieve recent updates. GTR 22 shall include mandatory parameters: State of Certified Energy Readiness Status, Energy Storage System Recent Depth of Discharge Counter, and Preconditions for Recent Battery Capacity Update, removing quantitative specifics dependent on energy storage chemistry and time duration references from existing annexes. |
| Meeting Sessions: 97th EVE session (19-20 May) |
| Document date: 18 May 26 |
| Relevant to: GTR No. 22 | Electrified Vehicle Battery Durability |
| Click here to view the full document file |
| GTR 22: Comments on Part C family definition |
| Reference Number: EVE-97-03 |
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Proposal to amend virtual distance to assessment of virtual distance and amend monitor to assessment of virtual distance. The amendments ensure text robustness and alignment between GTR 22 and UN R154/04. The monitor was copied from Part A families and is not mentioned in Part C. The Battery cell characteristic includes the REESS as part of the Family concept. |
| Submitted by: OICA |
| Meeting Sessions: 97th EVE session (19-20 May) |
| Document date: 18 May 26 |
| Relevant to: GTR No. 22 | Electrified Vehicle Battery Durability |
| Click here to view the full document file |
| e-Trailer Industry Group: Status and discussions |
| Reference Number: GRVA-25-33 |
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Presentation on electrically propelled and recuperating trailers. The document outlines communication flows between towing vehicles and e-trailers using ISO 11992-2 over ISO 7638-1, involving parameter groups EBS14 (control), EBS28 (energy/state of charge), and EBS29 (status). Key principles include the towing vehicle setting control modes and requesting torque, with trailers reporting capabilities. The document discusses support for maximum three e-axle equipped trailers due to bandwidth limitations, enabling of e-trailer control via CANopen Service Data Objects, and backward compatibility with ISO 11992-2:2014. Amendments to UN Regulation 13 are planned with target entry into force in May 2028. |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 19 May 26 |
| Relevant to: UN Regulation No. 13 | Heavy-Duty Vehicle Braking and WP.29 Regulatory Project | Trailer-axle energy and propulsion |
| Click here to view the full document file |
| UN R155: Proposal to amend the Interpretation Document |
| Reference Number: GRVA-25-32 |
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Proposal to insert new Part C providing guidance on application of UN R155 to transformed vehicles. Part C defines when transformations require new approval, establishes terminology for original vehicle types, transformed vehicle types, transformations, and installations, identifies cyber-relevant transformations by evaluating impact on architecture and connection risks, addresses intrinsic cyber security risks, clarifies non-automotive equipment requirements, and specifies documentary evidence manufacturers must provide to approval authorities or technical services, including functional descriptions, connection details, software modifications, and component lists. |
| Submitted by: TFCS |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 18 May 26 |
| Relevant to: UN Regulation No. 155 | Cyber Security and Cyber Security Management |
| Click here to view the full document file |
| UN R155: Proposal for amendments |
| Reference Number: GRVA-25-31 |
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Proposal to amend para. 5.3.2. to require approval authorities to notify other approval authorities of methods and criteria used to assess measures taken in accordance with the Regulation, insert new para. 8.2. to exclude equipment with negligible intrinsic cyber security risk from further assessment where installation does not impinge on the cyber security management system and is connected exclusively via an approved interface, insert new para. 8.3. to exclude standard domestic, business or industrial equipment connected only for power from further assessment where the equipment is unmodified and complies with applicable regional and national cyber security requirements, and amend Annex 1 to include any equipment excluded from assessment pursuant to paras. 8.2. and 8.3. |
| Submitted by: TFCS |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 18 May 26 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 155 | Cyber Security and Cyber Security Management |
| Click here to view the full document file |