GAR | R55-14-08

Thursday, 3 July 2025
Week 27

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Latest Documents

2 Jul 2025 | UN R48: Baseline document for Stage 2 SLR | SLR-73-07

2 Jul 2025 | Input on SLR "apparent surface" discussions | SLR-73-06

2 Jul 2025 | Heavy EV battery durability: GTR Phase 2 summary | EVE-86-03

2 Jul 2025 | TF-STU: Agenda for the 15th (June 2025) session | TF-STU-15-01

2 Jul 2025 | Report of the 15th (June 2025) TF-STU task force session | TF-STU-15-02

2 Jul 2025 | Liquefied hydrogen fuel systems: Working draft text for a new UN Reg...

1 Jul 2025 | Presentation on hydrogen fuel systems and ISO 17268-1:2025 | TFH2-0...

1 Jul 2025 | Application of ISO 19887-1:2024 to Supply Lines for Additional TPRDs...

(10 posted during the past week)

UN R48: Baseline document for Stage 2 SLR

Reference Number:	SLR-73-07
Submitted by:	GTB
Meeting Session(s):	73rd SLR session (9-11 Jul)
Document date:	02 Jul 25
Regarding:	UN R48 Installation of Lighting \| SLR
View full document file for more information

Download from UNECE:

.docx format

Input on SLR "apparent surface" discussions

Reference Number:	SLR-73-06
Submitted by:	GTB
Meeting Session(s):	73rd SLR session (9-11 Jul)
Document date:	02 Jul 25
Regarding:	UN R48 Installation of Lighting \| UN R148 Light-Signalling Devices \| UN R149 Road Illumination Devices (RID) \| UN R150 Retro-reflective Devices (RRD) \| SLR

Download from UNECE:

.docx format

Heavy EV battery durability: GTR Phase 2 summary

Reference Number:	EVE-86-03
Meeting Session(s):	86th EVE session (8-9 Jul)
Document date:	02 Jul 25
Regarding:	HD EV Battery Durability

Download from UNECE:

.pdf format

TF-STU: Agenda for the 15th (June 2025) session

Reference Number:	TF-STU-15-01
Meeting Session(s):	15th TF-STU session (18 Jun)
Document date:	18 Jun 25
Regarding:	VRU Proximity Awareness

Download from UNECE:

.pdf format

Report of the 15th (June 2025) TF-STU task force session

Reference Number:	TF-STU-15-02
Meeting Session(s):	15th TF-STU session (18 Jun)
Document date:	02 Jul 25
Regarding:	VRU Proximity Awareness

Download from UNECE:

.pdf format

Liquefied hydrogen fuel systems: Working draft text for a new UN Regulation

Reference Number:	TFH2-01-05
Submitted by:	Netherlands and OICA
Meeting Session(s):	1st TFH2 session (1-2 Jul)
Document date:	02 Jul 25
Regarding:	Liquefied hydrogen storage systems

Download from UNECE:

.docx format

Presentation on hydrogen fuel systems and ISO 17268-1:2025

Reference Number:	TFH2-01-03
Submitted by:	Hydrogenium Consulting
Meeting Session(s):	1st TFH2 session (1-2 Jul)
Document date:	01 Jul 25
Regarding:	Liquefied hydrogen storage systems

Download from UNECE:

.ppt format

Application of ISO 19887-1:2024 to Supply Lines for Additional TPRDs

Reference Number:	TFH2-01-04
Submitted by:	KHK and METI
Meeting Session(s):	1st TFH2 session (1-2 Jul)
Document date:	01 Jul 25
Regarding:	Liquefied hydrogen storage systems

Download from UNECE:

.ppt format

Upcoming Meetings

Informal Working Group on Automated Driving Systems | Session 12 | 7-11 ...

Electric Vehicles and the Environment | Session 86 | 8-9 Jul

GRBP Task Force on Automated Vehicle Regulation Screening | Session 16 |...

A-LCA Subgroup 3: Production | Session 25 | 8 Jul

RD-ASEP R51/R138 Subgroup | Session 12 | 8-11 Jul

Simplification of Lighting and Light-Signalling Regulations | Session 73...

Task Force on Vehicle Sound Limits | Session 18 | 9 Jul

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

Working Party on Noise and Tyres | Session 82 | 3-5 Sep

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...

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

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Recent Headlines

6 May 2025 CO2 emissions EP fast-tracks vote on flexibility measures for...

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...

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How Do You Want Call Up the List of Documents?

UN R55

AC.3

GRB

GRBP

GRE

GRPE

2019

Proposal for minor changes to UN Regulation No. 55

Reference Number: R55-14-02

UN R55 informal group working draft to introduce:

Correction error in annex 5 figure 12 and 17
An amendment that concerns identification of worst cases for design assessment
Clarifications on minimum articulation angles.

Document date: 10 May 16

Document status: Superseded

Relevant to UN Regulation No. 55 | Mechanical Coupling Components.

View full document file for more information

Download from UNECE:

.docx format

Proposal for amendments to Regulation No. 55

Reference Number: GRRF/2016/31

Proposal by the informal working group on Regulation No. 55 to introduce:
a) Correction of an error in Annex 5, figures 12 and 17;
b) An amendment that concerns identification of worst cases for design assessment;
c) Clarifications on minimum articulation angles.

Document date: 07 Jul 16

Document status: Superseded

Relevant to UN Regulation No. 55 | Mechanical Coupling Components.

View full document file for more information

Download from UNECE:

.pdf format

.docx format

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Proposal for minor changes to UN Regulation No. 55

Document R55-14-08

16 June 2016

14th R55 session (16 Jun 2016)

UN R55 informal group working draft to introduce:

Correction error in annex 5 figure 12 and 17
An amendment that concerns identification of worst cases for design assessment
Clarifications on minimum articulation angles.

Status: Superseded

Download document

Previous Documents, Discussions, and Outcomes

82nd GRRF session (20-23 Sep 2016)

4. Regulation No. 55 (Mechanical couplings)

19. The Chair of the IWG introduced ECE/TRANS/WP.29/GRRF/2016/31 (as amended by GRRF-82-28) proposing clarifications and an amendment to the worst cases identification provisions. GRRF supported the proposal.

20. The expert from Germany volunteered to prepare a consolidated document encompassing all documents above (see paras. 16-19) while addressing the comments received. GRRF requested for this new document to be brought to the next session.

14th R55 session (16 Jun 2016)

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