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.
| Electric Vehicles and the Environment: Report of the 97th (May 2026) session |
| Reference Number: EVE-97-10 |
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The Electric Vehicles and the Environment Informal Working Group held its 97th session on May 19, 2026. Discussions addressed UN GTR 22/25 including Norwegian EV demographics, a proposed Readiness Monitor concept for State of Certified Energy activities, and OICA terminology amendments replacing “monitor” with “assessment of virtual distance” in Part C. The group reviewed Phase 4 priorities for UN GTR 21 and UN GTR 25, including Minimum Performance Requirements, conditioning cycles, and lifetime requirements addressing disconnects between mileage and year thresholds. The next session is scheduled for June 16–17, 2026. |
| Submitted by: EVE |
| Meeting Sessions: 97th EVE session (19-20 May) |
| Document date: 22 May 26 |
| Relevant to: GTR No. 21 | Electric Vehicle System Power Determination, 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 |
| Draft list of proposed proposed decisions for adoption during the formal June GRVA session in Geneva |
| Reference Number: GRVA-25-04 |
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This document lists the decisions taken during the GRVA session in Montreal. These decisions will be formally considered and likely adopted during a session on 23 June in Geneva. |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 22 May 26 |
| Click here to view the full document file |
| UN R171: Proposal to amend GRVA/2026/18 |
| Reference Number: GRVA-25-57 |
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Proposal to:
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| Submitted by: GRVA |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 22 May 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 171 | Driver-Control Assistance Systems (DCAS) |
| Click here to view the full document file |
| UN R171: Proposal to amend GRVA/2026/16 |
| Reference Number: GRVA-25-56 |
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Proposal to amend GRVA/2026/16, based on GRVA-25-46. Insert new Introduction paragraph 17 regarding DCAS technology development and continuous review; amend paragraph 2.11. to define Target Lane; amend paragraph 5.3.5.1. to specify system boundary detection and feature transition requirements; amend paragraph 5.3.7.1.4. regarding steering support at boundary conditions; amend paragraph 5.3.7.2.1.1. to clarify driver disengagement detection timing; insert new paragraph 5.3.7.2.1.13. regarding manufacturer description of system behaviour during driver disengagement; amend paragraph 5.3.7.2.3.1. regarding driver confirmation time; amend paragraph 5.3.7.3.1. concerning risk mitigation function compliance; amend paragraph 5.3.7.5.1.1.2. regarding headway configuration notification; insert footnote 3 defining initiation of powertrain; amend paragraph 5.5.3.1. to clarify system off mode default status; amend paragraph 5.5.4.1.1. removing reference to system-initiated manoeuvres; amend paragraph 5.5.4.2.2.3. regarding warning escalation strategy; amend paragraphs 5.5.4.2.5.2. and 5.5.4.2.5.2.1. regarding visual disengagement assessment; amend paragraphs 5.5.4.2.7. and 5.5.4.2.7.1. regarding disengagement detection strategies; amend paragraph 5.5.4.2.8.1. regarding system activation disabling; amend paragraph 6.2.4.1. regarding approaching vehicle deceleration at speeds up to 60 km/h; amend paragraph 14.2. regarding production discontinuation; delete Annex 3 paragraphs 2.15. and 2.16. defining Highway and Non-Highway roads; amend Annex 3 paragraph 3.1.1. regarding documentation package retention; renumber Annex 3 paragraph 3.5.7. to 3.4.5. and insert new paragraph 3.4.5. regarding system information strategy; insert new paragraph 3.5.5. regarding safety management processes during operation phase; renumber former paragraphs 3.5.5. and 3.5.6. to 3.5.6. and 3.5.7. respectively; insert Annex 3 Appendix 2 with new definitions section; amend Annex 4 Introduction regarding test requirements and extended tests; amend paragraph 4.2.2.1. regarding longitudinal control distance; insert new paragraph 4.2.2.2. regarding non-repeatable outcomes; amend paragraphs 4.2.5.2.8.1.2., 4.2.5.2.10.1.1., and 4.2.5.2.12.1.1. regarding bicycle target specifications; delete paragraph 4.2.5.2.14.1.2.; amend paragraph 4.2.5.2.14.2.1. regarding test execution requirements; and amend Annex 5 paragraphs 3.4.8.2. and 3.5.5.1. regarding M&S data and simulation tool criticality assessment. |
| Submitted by: GRVA |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 22 May 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 171 | Driver-Control Assistance Systems (DCAS) |
| Click here to view the full document file |
| UN R178: Proposal to amend GRVA/2026/20 |
| Reference Number: GRVA-25-55/Rev.1 |
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Amends para. 5.3. to insert requirements that ELKS effectiveness shall not be adversely affected by magnetic or electrical fields, demonstrated through UN Regulation No. 10 (06 or later) series; para. 6.2.2.1. to require vehicle operating instructions include situations where ELKS is automatically deactivated; para. 6.5.2., 7.2.1., and 8.2.1. to reference UN Regulation No. 130 in its 01 series of amendments; para. 7.2.2.3. to insert “(the latest occurring warning)”; para. 8.3.3.1. to reference para. 6.6.2.1.; and inserts para. 14. establishing transitional provisions applicable from entry into force until 1 September 2030. |
| Submitted by: Australia |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 22 May 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 178 | Emergency Lane-Keeping Systems |
| Click here to view the full document file |
| UN R178: Proposal to amend GRVA/2026/20 |
| Reference Number: GRVA-25-54 |
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Proposal to amend para. 5.3. to require that the effectiveness of ELKS shall not be adversely affected by magnetic or electrical fields, demonstrated by fulfilling the technical requirements and respecting the transitional provisions of the 06 series of amendments to UN Regulation No. 10. |
| Submitted by: EC and Germany |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 22 May 26 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 178 | Emergency Lane-Keeping Systems |
| Click here to view the full document file |
| UN R79: Proposal to amend GRVA/2026/19 |
| Reference Number: GRVA-25-53/Rev.1 |
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Proposal to amend para. 5.3.3.2. to clarify that steering shall remain possible with performance laid down in para. 6. for the intact steering system in case of control transmission failure, amend para. 6.1.1. to specify that tests shall be conducted on a level surface affording good adhesion at ambient temperature between 0°C and 45°C, with provisions for deviating conditions at manufacturer request with Technical Service agreement, and insert new para. 6.2.5.1.1. to permit vehicle manufacturers to request at least 10 “figure of eight” manoeuvres with 40 m diameter loops at 10 km/h speed prior to measurement of steering efforts with steering equipment failure. |
| Submitted by: Korea |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 22 May 26 |
| Relevant to: UN Regulation No. 79 | Steering Equipment |
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| Initiation of system intervention (horizontal provision) |
| Reference Number: GRVA-25-52 |
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For the purposes of type approval under any UN Regulation requiring the verification of the timing of a system intervention, manufacturers shall provide to the approval authority or its designated technical service information on the method by which the initiation of any system intervention can be objectively identified and retrieved, including specific flags, status bits, event codes on in-vehicle networks, or visual indications on screens; clear instructions and all necessary tools for the Technical Service to extract, access and interpret the signal identifying the initiation; documented procedures including corresponding data sources, resolution, and timing accuracy appended to the type approval test report; and, where a visual indication displayed on a screen is used, documented latency between the earliest internal point at which the system initiates the function and the moment the visual indication becomes visible on the screen, expressed as a fixed value with associated uncertainty, with the documented latency value used to correct the observed timing of the screen indication appended to the type approval test report. |
| Submitted by: France |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 22 May 26 |
| Relevant to: UN Regulation No. 79 | Steering Equipment, WP.29 Regulatory Project | Automated Driving Systems, and UN Regulation No. 171 | Driver-Control Assistance Systems (DCAS) |
| Click here to view the full document file |