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.
| GRSP AV Screening: Minutes of the 25th (April 2026) session |
| Reference Number: GRSP-TF-AVRS-25-07 |
|
The 25th session of the GRSP Task Force on Automated Vehicles Regulatory Screening (AVRS) was held online on 28 April 2026. The Task Force discussed regulatory frameworks for Y-category vehicles, including mass compatibility and crash test exceptions, and reviewed UN Regulation 127 on pedestrian protection for Y-category vehicles. The Task Force also addressed UN Regulation 12 feedback and identified minor mistakes in three proposals: ECE/TRANS/WP.29/2026/63, ECE/TRANS/WP.29/2026/65, and ECE/TRANS/WP.29/2026/71, which require corrections before submission to WP.29. |
| Meeting Sessions: 25th GRSP-TF-AVRS session (28 Apr) |
| Document date: 20 May 26 |
| Relevant to: UN Regulation No. 21 | Interior Fittings, UN Regulation No. 94 | Occupant Protection in Frontal Collisions, WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles, UN Regulation No. 173 | Installation of safety belts, restraint systems, child restraint systems, ISOFIX child restraint systems and i-Size child restraint systems, and WP.29 Regulatory Project | Approval of vehicles of category Y (without occupants) with regard to their crash safety |
| Click here to view the full document file |
| UN R51: Comments on the draft 04 series of amendments |
| Reference Number: RDASEP-Edit-06-01 |
|
Japan comments on the draft 04 series of amendments to UN R51 (Noise of M1–M3 and N1–N3 Categories of Vehicles). Japan highlights several editorial and technical issues. Regarding para. 2.24.1, Japan suggests the table of symbols for Annex 3 should state symbols are “used for the first time” consistent with ISO standards. For para. 3.1.2.1.4.3, Japan requests deletion of “but no more than 2.0 m/s²” as unnecessary for RD-ASEP applied to electric vehicles. Japan notes para. 6.2.3.4 should reference appropriate appendices for the RD-ASEP statement of compliance requirement. Paragraphs 11.1.4 and 11.1.5 are identical and one should be deleted. Japan flags para. 3.2.3.4.2 requires tyre conditioning on outdoor test tracks for indoor testing. For Annex 6, para. 3 should clarify that compliance assessment references para. 5 of Annex 7 for expected sound pressure level limits applicable to conformity of production testing. |
| Submitted by: Japan |
| Meeting Sessions: 6th RDASEP-Edit session (28 May) |
| Document date: 20 May 26 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Noise figures in vehicle Certificates of Conformity versus noise as perceived by citizens |
| Reference Number: TFVS-21-02 |
|
NEFOM and S.O.S. represent over 1 million European citizens experiencing noise from light vehicles inconsistent with Certificate of Conformity figures. The LENS project conducted 2300 measurements of 2300 vehicles, finding measured noise levels in practice much higher than type approval, sometimes reaching 100 dB(A). The A-filter used in Certificates of Conformity is unsuitable for noise levels above 70 dB and does not represent human perception. Sound limits for motorcycles have not changed since 2015 and remain too high. The document requests further improvements to RD-ASEP testing, replacement of the A-filter with a C-filter, and significant reduction of sound level limits for motorcycles. |
| Submitted by: NEFOM |
| Meeting Sessions: 21st TFVS session (9 Jun) |
| Document date: 20 May 26 |
| Relevant to: UN Regulation No. 41 | Motorcycle Noise |
| Click here to view the full document file |
| UN R171: Proposal for amendments |
| Reference Number: GRVA-25-46 |
|
Proposal to amend the original version (GRVA/2026/15), insert para. 5.3.7.2.1.13. to require the manufacturer to describe in the safety concept the system behaviour in case the driver is detected to be disengaged during a manoeuvre; amend the original version and the 01 series (GRVA/2026/15 and GRVA/2026/17), amend para. 3.5.1. of Annex 3 to require the manufacturer to demonstrate to the Type Approval Authority at least every three years that the safety management system continues to comply with requirements; amend the 01 and 02 series (GRVA/2026/17 and WP.29/2026/86), amend para. 2.3.2. of Appendix 2 of Annex 3; amend the 02 series (WP.29/2026/86), amend para. 4.2.5.2.19.2.1. of Annex 4; and amend the original version, 01 series and 02 series (GRVA/2026/15, GRVA/2026/17 and WP.29/2026/86), amend para. 4.2.5.2.14.1.2. of Annex 4 and para. 4.2.5.2.14.2.1. of Annex 4. |
| Submitted by: UK |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 20 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 |
| GRSP-TF-AVRS draft status report to GRSP |
| Reference Number: GRSP-TF-AVRS-26-26 |
|
TF-AVRS submitted a draft new Y-category Passive Safety Regulation to GRSP-79 in June 2026. The regulation addresses fuel system integrity, electrical shock protection, and crash compatibility for frontal, rear-end, and lateral collisions. The Task Force eliminated the R point problem, passenger compartment references, and A and B pillar designations, harmonised mass definitions, and consolidated numbering and cross-references. Open items include determining additional requirements, specific vehicle measurements, and finalising Annex elements. Subsequent informal documents are planned for GRSP-79, with working documents for GRSP-80. |
| Meeting Sessions: 26th GRSP-TF-AVRS session (22 May) |
| Document date: 20 May 26 |
| Relevant to: WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles and WP.29 Regulatory Project | Approval of vehicles of category Y (without occupants) with regard to their crash safety |
| Click here to view the full document file |
| UN R171: Proposal to amend GRVA/2026/18 |
| Reference Number: GRVA-25-45 |
|
Proposal to delete the draft “Reserved” paragraph 5.3.7.2.4.3. in GRVA/2026/18. Reserving paragraph 5.3.7.2.4.3. in the 01 series would mean that the subsequent paragraphs would be out of line with the numbering in the 02 series, making future amendments to UN R171 unnecessarily challenging. |
| Submitted by: UK |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 20 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 R13: Proposal for e-trailer amendments |
| Reference Number: GRVA-25-44 |
|
Proposal to delete paragraph 1.2.6. excluding e-axle trailers with e-axles providing electric propulsion and/or incorporating an electric regenerative braking system from the scope of UN R13, and add definitions of “e-axle,” “e-axle trailer,” “dynamo function,” and “e-trailer”; add special requirements for power-driven vehicles supporting e-trailer operation, e-axle trailers equipped with dynamo function, and e-trailers of category O; add requirements for electric control lines conforming to ISO 11992-2:2027; specify message support and functional compatibility; and add provisions for electric regenerative braking, dynamo function, and propulsion, including parameters such as retarder torque demand priority, propulsion force limits, overriding mode activation at speeds below 15km/h, and vehicle stability function interaction. |
| Submitted by: OICA, CLCCR, and CLEPA |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 20 May 26 |
| Document status: Informal GR review |
| 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 R157: Proposal for amendment |
| Reference Number: GRVA-25-43 |
|
Proposal to amend para. 3.5.1. of Annex 4 to require the manufacturer to demonstrate to the approval authority that effective processes, methodologies and tools are in place, up to date and being followed within the organization to manage the safety and continued compliance throughout the product lifecycle, and to demonstrate to the approval authority at least every three years that the safety management system continues to comply with these requirements. |
| Submitted by: Germany and UK |
| Meeting Sessions: 25th GRVA session (18-22 May) |
| Document date: 20 May 26 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 157 | Automated Lane-Keeping Systems (ALKS) |
| Click here to view the full document file |