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Latest Documents

1 Aug 2025 | R51/R138: Agenda for the 13th (August 2025) session | R51/R138-13-08

1 Aug 2025 | A-LCA: Agenda for the 27th (September 2025) session | A-LCA-27-01

1 Aug 2025 | Minutes of the 48th (June 2025) IWVTA informal group session | IWVTA...

1 Aug 2025 | UN R51: Comments on draft Supplement proposal (Annex 7) | R51/R138-1...

1 Aug 2025 | UN R138: Draft amendment on AVAS sound levels | R51/R138-13-06

1 Aug 2025 | UN R51: Draft guidance on interpretation of the footnote on generate...

1 Aug 2025 | UN R51: Proposal for corrections to the 03 series of amendments | R5...

1 Aug 2025 | UN R51: Draft proposal to amend document GRBP/2025/29 | R51/R138-13-03

(43 posted during the past week)

R51/R138: Agenda for the 13th (August 2025) session

Reference Number:	R51/R138-13-08
Meeting Session(s):	13th R51/R138 session (6 Aug)
Document date:	01 Aug 25
Regarding:	UN R51 Vehicle Noise

Download from UNECE:

A-LCA: Agenda for the 27th (September 2025) session

Reference Number:	A-LCA-27-01
Meeting Session(s):	27th A-LCA session (22-23 Sep)
Document date:	01 Aug 25
Regarding:	Automotive Life Cycle Assessment

Download from UNECE:

Minutes of the 48th (June 2025) IWVTA informal group session

Reference Number:	IWVTA-49-01
Meeting Session(s):	49th IWVTA session (6 Nov)
Document date:	01 Aug 25
Regarding:	UN R0 International Whole Vehicle Type Approval

Download from UNECE:

UN R51: Comments on draft Supplement proposal (Annex 7)

Reference Number:	R51/R138-13-07
Meeting Session(s):	13th R51/R138 session (6 Aug)
Document date:	01 Aug 25
Regarding:	UN R51 Vehicle Noise
View full document file for more information

Download from UNECE:

UN R138: Draft amendment on AVAS sound levels

Reference Number:	R51/R138-13-06
Meeting Session(s):	13th R51/R138 session (6 Aug)
Document date:	01 Aug 25
Regarding:	UN R138 Quiet Road Transport Vehicles

Download from UNECE:

UN R51: Draft guidance on interpretation of the footnote on generated sounds

Reference Number:	R51/R138-13-05
Meeting Session(s):	13th R51/R138 session (6 Aug)
Document date:	01 Aug 25
Regarding:	UN R51 Vehicle Noise
View full document file for more information

Download from UNECE:

UN R51: Proposal for corrections to the 03 series of amendments

Informal consolidated text for better reading.

Reference Number:	R51/R138-13-04
Submitted by:	OICA
Meeting Session(s):	13th R51/R138 session (6 Aug)
Document date:	01 Aug 25
Regarding:	UN R51 Vehicle Noise
View full document file for more information

Download from UNECE:

UN R51: Draft proposal to amend document GRBP/2025/29

Reference Number:	R51/R138-13-03
Meeting Session(s):	13th R51/R138 session (6 Aug)
Document date:	01 Aug 25
Regarding:	UN R51 Vehicle Noise
View full document file for more information

Download from UNECE:

Upcoming Meetings

RD-ASEP R51/R138 Subgroup | Session 13 | 6 Aug

Safer and Cleaner Used and New Vehicles in Developing Markets | Session ...

GRSP Task Force on Automated Vehicles and Regulation Screening | Session...

GRBP Task Force on Automated Vehicle Regulation Screening | Session 17 |...

Informal Working Group on Children Left in Vehicles | Session 11 | 26-28...

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

View complete calendar

Latest Changes to Regulations

5 Aug 2024 GTR No. 21 | Amendment 1 | Appendix 1

Regulation:	GTR No. 21 \| Electric Vehicle System Power Determination
Document:	GTR No. 21

5 Aug 2024 GTR No. 21 | Amendment 1

Regulation:	GTR No. 21 \| Electric Vehicle System Power Determination
Document:	GTR No. 21

5 Aug 2024 GTR No. 22 | Amendment 1 | Appendix 1

Regulation:	GTR No. 22 \| Electrified Vehicle Battery Durability
Document:	GTR No. 22

5 Aug 2024 GTR No. 22 | Amendment 1

Regulation:	GTR No. 22 \| Electrified Vehicle Battery Durability
Document:	GTR No. 22

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30 Dec 2024 Australia ceases UN R147 application

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