GAR | Mechanical Couplings

Wednesday, 26 March 2025
Week 13

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Latest Documents

25 Mar 2025 | Wet braking of worn tires: Real-world assessment of regulatory requi...

25 Mar 2025 | Health Effects of Automotive Brake and Tyre Wear Particles | PMP-55-10

25 Mar 2025 | AEROSOLS: Air Quality and Health Impact of Primary Semi-volatile and...

25 Mar 2025 | GTR 24: Amendment 2 proposals | PMP-55-08

25 Mar 2025 | Input for the 55th PMP informal group session | PMP-55-07

25 Mar 2025 | GTR 24: Interlaboratory study (ILS3) summary | PMP-55-06

25 Mar 2025 | Minutes of the 11 March 2025 PMP informal group session | PMP-54.4-0...

25 Mar 2025 | C3 tyres abrasion rate index vehicle method preliminary concept over...

(65 posted during the past week)

Wet braking of worn tires: Real-world assessment of regulatory requirements

Reference Number:	WT-67-02
Submitted by:	JRC
Meeting Session(s):	67th WT session (27 Mar)
Document date:	25 Mar 25
Regarding:	UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance

Download from UNECE:

.ppt format

Health Effects of Automotive Brake and Tyre Wear Particles

Reference Number:	PMP-55-10
Submitted by:	EC
Meeting Session(s):	55th PMP session (25 Mar)
Document date:	25 Mar 25
Regarding:	GTR No. 24 Brake Emissions \| Tyre abrasion \| NEPE

Download from UNECE:

.ppt format

AEROSOLS: Air Quality and Health Impact of Primary Semi-volatile and Secondary Particles and Their Abatement

AEROSOLS Project Insights

Reference Number:	PMP-55-09
Submitted by:	UBA
Meeting Session(s):	55th PMP session (25 Mar)
Document date:	25 Mar 25
Regarding:	PMP

Download from UNECE:

.pdf format

GTR 24: Amendment 2 proposals

Reference Number:	PMP-55-08
Submitted by:	JRC
Meeting Session(s):	55th PMP session (25 Mar)
Document date:	25 Mar 25
Regarding:	GTR No. 24 Brake Emissions

Download from UNECE:

.ppt format

Input for the 55th PMP informal group session

Additional chassis dyno quality criteria
Threshold pressure calculation method
Table 5.3
Annex C clarifications and adaptations

Reference Number:	PMP-55-07
Submitted by:	OICA
Meeting Session(s):	55th PMP session (25 Mar)
Document date:	25 Mar 25
Regarding:	GTR No. 24 Brake Emissions

Download from UNECE:

.pdf format

GTR 24: Interlaboratory study (ILS3) summary

Reference Number:	PMP-55-06
Meeting Session(s):	55th PMP session (25 Mar)
Document date:	25 Mar 25
Regarding:	GTR No. 24 Brake Emissions

Download from UNECE:

.pdf format

Minutes of the 11 March 2025 PMP informal group session

Reference Number:	PMP-54.4-08/Rev.1
Meeting Session(s):	PMP-54.4 (11 Mar)
Document date:	25 Mar 25
Regarding:	GTR No. 24 Brake Emissions

Download from UNECE:

.pdf format

C3 tyres abrasion rate index vehicle method preliminary concept overview

Reference Number:	TA-31-05
Submitted by:	ETRTO
Meeting Session(s):	31st TA session (25 Mar)
Document date:	25 Mar 25
Regarding:	Tyre abrasion

Download from UNECE:

.ppt format

Upcoming Meetings

Event Data Recorders and Data Storage Systems for Automated Driving | Se...

Working Party on Automated and Connected Vehicles | GRVA ADS Workshop | ...

EqOP Task Force on Virtual Crash Testing | Session 7 | 25-26 Mar

Working Party on Pollution and Energy | Session 92 | 25-28 Mar

Wet Grip on Worn Tyres | Session 67 | 27 Mar

Task Force on Autonomous Vehicle Signalling Requirements | Session 24 | ...

Task Force on Substitute and Retrofit Light Sources | Session 23 | 28 Mar

Automated Vehicle Categorisation | Session 15 | 1 Apr

Informal Working Group on Children Left in Vehicles | Session 8 | 1-3 ...

Periodical Technical Inspections | Session 38 | 2 Apr

Equitable Occupant Protection | Session 9 | 3 Apr

Task Force on the Fitness of GRVA Regulations for Application to ADS Veh...

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

25 Jul 2024 GTR No. 9 | Amendment 3

Regulation:	GTR No. 9 \| Pedestrian Safety
Document:	GTR No. 9

25 Jul 2024 GTR No. 9 | Amendment 3 | Appendix 1

Regulation:	GTR No. 9 \| Pedestrian Safety
Document:	GTR No. 9

25 Jul 2024

Regulation:	GTR No. 13 \| Hydrogen and Fuel Cell Vehicle Safety
Document:	Amendment 1 \| Corrigendum 1

View last six months

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10 Mar 2025 Electric vehicles and climatisation measuring the impact on...

29 Jan 2025 EU Parliament report on vehicle circularity and end-of-life...

9 Jan 2025 High-visibility clothing may thwart pedestrian crash prevention...

30 Dec 2024 Australia ceases UN R147 application

20 Dec 2024 NHTSA Proposes National Program for Vehicles with Automated...

16 Dec 2024 NHTSA Finalizes Seat Belt Reminder Rule

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Reference Number:	WP.29/2024/15/Corr.1
Meeting Session(s):	192nd WP.29 session (4-8 Mar 2024)
Document date:	10 Jan 24
Document status:	Adopted by WP.29
Regarding:	UN R55 Mechanical Couplings
View full document file for more information