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.
| UN R158: Proposal for a 01 series of amendments |
| Reference Number: GRSG-131-10 |
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Proposal to amend UN R158 to include category O vehicles (trailers) within the scope of regulations for devices enabling driver awareness of vulnerable road users during reversing. The amendment aims to reduce safety risks to vulnerable road users when category O vehicles reverse. Amendments modify title, paragraphs 1.1, 1.2, 1.4, 12.3, 12.4, and Annex 4, and introduce transitional provisions starting from September 2028. Justification includes casualty data showing seven fatalities and 15 serious injuries over 10 years from vehicles towing trailers reversing into vulnerable road users, plus a coroner’s recommendation for reversing cameras on all vehicles. |
| Submitted by: UK |
| Meeting Sessions: 131st GRSG session (13-17 Apr) |
| Document date: 08 Apr 26 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 158 | Reversing Motion Detection |
| Click here to view the full document file |
| EqOP Virtual Crash Testing: Agenda for the 14th (April 2026) session |
| Reference Number: EqOP-TF3-14-01 |
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The agenda for the 14th session of the Task Force on Virtual Crash Testing includes a review of the progress dashboard and continued discussion on the readiness assessment of the HMB across different timeframes (3, 5, 10, and 10+ years). The session will also address feedback from HBM4VT network stakeholders and conclude with next steps determination. |
| Meeting Sessions: 14th EqOP-TF3 session (13 Apr) |
| Document date: 08 Apr 26 |
| Relevant to: WP.29 Discussion Topic | Equitable Occupant Protection |
| Click here to view the full document file |
| RD-ASEP: List of open issues |
| Reference Number: RDASEP-Edit-03-05 |
| Meeting Sessions: 3rd RDASEP-Edit session (25 Mar) |
| Document date: 08 Apr 26 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| RD-ASEP Editing task force status report |
| Reference Number: RDASEP-Edit-03-04 |
| Meeting Sessions: 3rd RDASEP-Edit session (25 Mar) |
| Document date: 08 Apr 26 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Draft 04 series of amendments |
| Reference Number: RDASEP-Edit-04-04 |
| Meeting Sessions: 4th RDASEP-Edit session (8 Apr) and 3rd RDASEP-Edit session (25 Mar) |
| Document date: 08 Apr 26 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
| Click here to view the full document file |
| UN R46: Alignment with UN R26 and R61 |
| Reference Number: GRSG-131-09 |
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Five documents propose amendments to UN R46 series 02-07 to align requirements with UN R26 and UN R61, particularly regarding soft parts of camera monitoring systems and mirrors based on Shore A hardness. The 05 series introduced alignment requirements; harmonization is proposed for earlier series with existing approvals. |
| Meeting Sessions: 131st GRSG session (13-17 Apr) |
| Document date: 08 Apr 26 |
| Relevant to: UN Regulation No. 21 | Interior Fittings, UN Regulation No. 46 | Indirect Vision Devices, and UN Regulation No. 61 | Commercial Vehicle External Projections |
| View full document file for more information |
| Click here to view the full document file |
| CLIV: Status report to GRSG |
| Reference Number: GRSG-131-08 |
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CLIV is developing a new UN Regulation for vehicle categories M1, M2, M3, and N1 in Phase 2. The draft regulation requires visual and audible external warnings upon detection of a child left in a vehicle. Visual warnings use direction indicator lamps flashing in SOS morse code pattern for at least 15 seconds, then off for no more than 30 seconds, repeating for at least 10 minutes. Audible warnings must exceed 60dB(A) following the same timing pattern. The IWG requests guidance on potential amendments to UN R48, UN R28, and UN R165. |
| Submitted by: |
| Meeting Sessions: 131st GRSG session (13-17 Apr) |
| Document date: 08 Apr 26 |
| Relevant to: UN Regulation No. 28 | Audible Warning Devices and Signals, UN Regulation No. 48 | Installation of Lighting and Lighting-Signalling Equipment, UN Regulation No. 165 | Audible Reversing Warning Systems, and WP.29 Regulatory Project | Children left in vehicles |
| Click here to view the full document file |
| UN R169: Proposal for a Supplement 3 |
| Reference Number: GRSG-131-07 |
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Proposal to amend UN R169 by inserting definitions for non-volatile and volatile memory, and modifying the Last Stop trigger criteria. The amendment allows threshold criterion (a) data to be written to volatile memory only, transferring to non-volatile memory when other triggers occur or the master control switch deactivates. This reduces memory wear in vehicles with frequent stops exceeding 20 seconds. |
| Submitted by: |
| Meeting Sessions: 131st GRSG session (13-17 Apr) |
| Document date: 08 Apr 26 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 169 | Event Data Recorders (EDR) for heavy vehicles |
| Click here to view the full document file |