Friday, 22 August 2025
Week 34
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Latest Documents

22 Aug 2025 | UN R51: Draft proposal to amend document GRBP/2025/25 | GRBP-TFAVRS-...
22 Aug 2025 | Report of the 17th (August 2025) GRBP-TFAVRS informal group session ...
22 Aug 2025 | International Whole Vehicle Type Approval System: Agenda for the 49t...
22 Aug 2025 | A-LCA Subgroup 2: Agenda for the 23rd (August 2025) session | A-LCA-...
22 Aug 2025 | CS/OTA Task Force: Agenda for the 35th (September 2025) session | TF...
21 Aug 2025 | UN R48: Proposal to amend document GRE/2025/5 | GRE-92-10/Rev.1
21 Aug 2025 | RE5: Category H8 specifications | GRE-92-09
21 Aug 2025 | Report of the 72nd (April 2025) SLR informal group session | SLR-72-22
(5 posted today) (33 posted during the past week)
UN R51: Draft proposal to amend document GRBP/2025/25
Reference Number: GRBP-TFAVRS-17-06/Rev.1
Meeting Session(s): 17th GRBP-TFAVRS session (20 Aug)
Document date: 22 Aug 25
Regarding: UN R51 Vehicle Noise  | Regulation Screening for ADS
View full document file for more information
Download from UNECE: .docx format
Report of the 17th (August 2025) GRBP-TFAVRS informal group session
Reference Number: GRBP-TFAVRS-17-07
Meeting Session(s): 17th GRBP-TFAVRS session (20 Aug)
Document date: 22 Aug 25
Regarding: Regulation Screening for ADS
Download from UNECE: .docx format
International Whole Vehicle Type Approval System: Agenda for the 49th (November 2025) session
Reference Number: IWVTA-49-02
Meeting Session(s): 49th IWVTA session (6 Nov)
Document date: 22 Aug 25
Regarding: UN R0 International Whole Vehicle Type Approval
Download from UNECE: .doc format
A-LCA Subgroup 2: Agenda for the 23rd (August 2025) session
Reference Number: A-LCA-SG2-23-01
Meeting Session(s): 23rd A-LCA-SG2 session (28 Aug)
Document date: 22 Aug 25
Regarding: Automotive Life Cycle Assessment
Download from UNECE: .ppt format
CS/OTA Task Force: Agenda for the 35th (September 2025) session
Reference Number: TFCS-35-01
Meeting Session(s): 35th TFCS session (11 Sep)
Document date: 22 Aug 25
Regarding: UN R155 Cybersecurity  | UN R156 SW Updates  | Cyber Security Guidelines  | Software Updates Guidelines
Download from UNECE: .docx format
UN R48: Proposal to amend document GRE/2025/5
Reference Number: GRE-92-10/Rev.1
Submitted by: OICA
Meeting Session(s): 92nd GRE session (22-25 Apr)
Document date: 21 Aug 25
Document status: Formal GR review
Regarding: UN R48 Installation of Lighting
View full document file for more information
Download from UNECE: .pdf format .docx format
RE5: Category H8 specifications
Reference Number: GRE-92-09
Meeting Session(s): 92nd GRE session (22-25 Apr)
Document date: 21 Aug 25
Regarding: RE5: Light-source specifications
Download from UNECE: .pdf format .docx format
Report of the 72nd (April 2025) SLR informal group session
Reference Number: SLR-72-22
Meeting Session(s): 72nd SLR session (9-11 Apr)
Document date: 21 Aug 25
Regarding: UN R48 Installation of Lighting  | UN R53 Motorcycle Lighting  | UN R74 Moped Lighting  | UN R86 Tractor Lighting  | UN R148 Light-Signalling Devices  | UN R149 Road Illumination Devices (RID)  | UN R150 Retro-reflective Devices (RRD)  | SLR
Download from UNECE: .pdf format

Upcoming Meetings

Informal Working Group on Children Left in Vehicles | Session 11 | 26-28...
Wet Grip on Worn Tyres | Session 69 | 26 Aug
Informal Working Group on Artificial Intelligence | Session 1 | 27 Aug
A-LCA Subgroup 2: Material & Material Recycling | Session 23 | 28 Aug
Working Party on Noise and Tyres | Session 82 | 3-5 Sep
Electric Vehicles and the Environment | Session 87 | 4 Sep
Working Party on Automated and Connected Vehicles | GRVA Scenarios Works...
Electric Vehicle Safety | Session 30 | 9-11 Sep
Simplification of Lighting and Light-Signalling Regulations | Session 74...
Informal Working Group on Automated Driving Systems | Session 13 | 10-11...
Automotive Life Cycle Assessment | Session 26 | 10 Sep
UN Task Force on Cybersecurity and Software Updates | Session 35 | 11 Sep
View complete calendar

Latest Changes to Regulations

10 Jul 2025 UN R13-H Revision 4 | Amendment 6 (Light Vehicle Braking)
Regulation: UN Regulation No. 13-H | Light-Duty Vehicle Braking
Document: Revision 4 | Amendment 6
Corresponds to: 02 series of amendments (Entered into force on 12 Jun 2025)
Based on:
Document WP.29/2024/147

Proposal to align UN R13-H with technical advances and the emergence of a new type of braking system that employs stored electrical energy for both the control transmission and the energy transmission.

Document WP.29-194-08
7 Jul 2025 UN R172 Corrigendum 1 (Traction/snow retreaded tyres)
Regulation: UN Regulation No. 172 | Retreaded tyres: Snow performance and/or traction classification
Document: Corrigendum 1
13 Mar 2025 UN R172 UN R172 (Traction/snow retreaded tyres)
Regulation: UN Regulation No. 172 | Retreaded tyres: Snow performance and/or traction classification
Document: UN R172
Corresponds to: Original text (Entered into force on 10 Jan 2025)
Based on:
Document WP.29/2024/75
12 Mar 2025 UN R138 Revision 1 | Amendment 4 (Quiet Road Transport Vehicles)
Regulation: UN Regulation No. 138 | Quiet Road Transport Vehicles
Document: Revision 1 | Amendment 4
Corresponds to: 02 series of amendments (Entered into force on 10 Jan 2025)
Based on:
Document WP.29/2024/66

Proposal to specify the working principles of an Acoustic Vehicle Alerting System (AVAS) and to reduce measurement uncertainties during the measurement of the one third octave bands.

27 Jan 2025 UN R13-H Revision 4 | Amendment 5 (Light Vehicle Braking)
Regulation: UN Regulation No. 13-H | Light-Duty Vehicle Braking
Document: Revision 4 | Amendment 5
Corresponds to: 01 series of amendments | Supplement 5 (Entered into force on 10 Jan 2025)
Based on:
Document WP.29/2024/59

Proposal to adapt the regulation to allow for the approval of vehicles equipped with both an Automated Driving System and a manual driving mode.

9 Jan 2025 UN R167 Amendment 1 (CV Direct Vision)
Regulation: UN Regulation No. 167 | UN Regulation on Commercial Vehicle Direct Vision
Document: Amendment 1
Corresponds to: Original text | Supplement 1 (Entered into force on 22 Sep 2024)
Based on:
Document WP.29/2024/13

Proposal to introduce an alternative method for assessment of the frontal visible volume to address future cab designs with narrower distances between A pillars. The current measurement method is dependent on the position of the A pillar. The alternative method is independent of the cab design and would be available for use at the manufacturer’s discretion.

16 Dec 2024 UN R148 Revision 1 | Amendment 2 (Light-Signalling Devices)
Regulation: UN Regulation No. 148 | Light-Signalling Devices (LSD)
Document: Revision 1 | Amendment 2
Corresponds to: 01 series of amendments | Supplement 2 (Entered into force on 22 Sep 2024)
Based on:
Document WP.29/2024/23

Proposal to clarify and correct the text and improve the definition of photometric stability.

View last six months

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International Whole Vehicle Type Approval System: Agenda for the 49th (November 2025) session
Reference Number: IWVTA-49-02
Meeting Session(s): 49th IWVTA session (6 Nov)
Document date: 22 Aug 25
Download from UNECE: .doc format
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International Whole Vehicle Type Approval System
Session 49
6 Nov | Geneva
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