Thursday, 2 April 2026
Week 14
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Upcoming Meetings
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GRSP Task Force on Automated Vehicles and Regulation Screening | Session...
Task Force on Tyre Abrasion | Session 47 | 2 Apr
RD-ASEP Editing Task Force | Session 4 | 8 Apr
Automotive Life Cycle Assessment | Session 38 | 9 Apr
EqOP Task Force on Virtual Crash Testing | Session 14 | 13 Apr
Working Party on General Safety | Session 131 | 13-17 Apr
Task Force on Glare Prevention | Session 7 | 13 Apr
Real-Driving Additional Sound Emission Provisions | Session 12 | 14-16 ...
Task Force on Vehicle Sound Limits | Session 20 | 14 Apr
EqOP Task Force on Restraint Requirements | Session 4 | 14 Apr
Simplification of Lighting and Light-Signalling Regulations | Session 77...
Task Force on Substitute and Retrofit Light Sources | Session 27 | 20 Apr
View complete calendar
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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...
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Latest Documents
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1 Apr 2026 | Tyre Abrasion task force Data Assessment subgroup: 2026 Confirmation...
1 Apr 2026 | C2 tyre abrasion test development for indoor drum test method | TA-4...
1 Apr 2026 | Tyre Abrasion task force 2026 workplan: ETRTO preliminary considerat...
1 Apr 2026 | C2 tyre abrasion rate index vehicle method: Current status | TA-47-02
1 Apr 2026 | Tyre Abrasion: Agenda for the 47th (April 2026) session | TA-47-01/R...
1 Apr 2026 | Automated Driving Systems : Agenda for the 20th IWG session and 17th...
1 Apr 2026 | CLIV: Draft UN Regulation for type approval of buses and coaches | C...
1 Apr 2026 | A-LCA: Draft resolution with latest changes | A-LCA-38-03
(46 posted during the past week)
Tyre Abrasion task force Data Assessment subgroup: 2026 Confirmation Plan Overview
Reference Number:
TA-47-05
Meeting Sessions:
47th TA session (2 Apr)
Document date:
01 Apr 26
Relevant to
WP.29 Regulatory Project | Tyre abrasion test method development
C2 tyre abrasion test development for indoor drum test method
Reference Number:
TA-47-04
Submitted by:
JASIC
Meeting Sessions:
47th TA session (2 Apr)
Document date:
01 Apr 26
Relevant to
WP.29 Regulatory Project | Tyre abrasion test method development
Tyre Abrasion task force 2026 workplan: ETRTO preliminary considerations
Reference Number:
TA-47-03
Submitted by:
ETRTO
Meeting Sessions:
47th TA session (2 Apr)
Document date:
01 Apr 26
Relevant to
WP.29 Regulatory Project | Tyre abrasion test method development
C2 tyre abrasion rate index vehicle method: Current status
Reference Number:
TA-47-02
Submitted by:
ETRTO
Meeting Sessions:
47th TA session (2 Apr)
Document date:
01 Apr 26
Relevant to
WP.29 Regulatory Project | Tyre abrasion test method development
Tyre Abrasion: Agenda for the 47th (April 2026) session
Reference Number:
TA-47-01/Rev.1
Meeting Sessions:
47th TA session (2 Apr)
Document date:
01 Apr 26
Relevant to
WP.29 Regulatory Project | Tyre abrasion test method development
Automated Driving Systems : Agenda for the 20th IWG session and 17th ADS Workshop (April 2026)
Reference Number:
ADS-20-01
Meeting Sessions:
20th ADS session (27 Apr-1 May)
and
17th GRVA-WS-ADS session (27 Apr-1 May)
Document date:
01 Apr 26
Relevant to
WP.29 Regulatory Project | Automated Driving Systems
and
WP.29 Regulatory Project | Data Storage Systems for Automated Driving
CLIV: Draft UN Regulation for type approval of buses and coaches
Reference Number:
CLIV-15-07
Meeting Sessions:
15th CLIV session (24-27 Mar)
Document date:
01 Apr 26
Relevant to
WP.29 Regulatory Project | Children left in vehicles
View full document file for more information
A-LCA: Draft resolution with latest changes
Reference Number:
A-LCA-38-03
Meeting Sessions:
38th A-LCA session (9 Apr)
Document date:
01 Apr 26
Relevant to
WP.29 Regulatory Project | Automotive Life Cycle Assessment
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GTR No. 4
← GTR No. 3
Worldwide Heavy-Duty Vehicle Emissions Certification Procedure
GTR No. 5 →
Texts and Appendices
Texts and Appendices
Documents
(169)
Meetings
(86)
← Back
Texts and Appendices
12 entries
GTR No. 4
2007
GTR No. 4: Appendix 1
2007
GTR No. 4 | Amendment 1
2010
GTR No. 4 | Amendment 1 | Appendix 1
2010
GTR No. 4 | Amendment 2
2010
GTR No. 4 | Amendment 2 | Appendix 1
2010
GTR No. 4 | Amendment 1 | Corrigendum 1
2012
GTR No. 4 | Amendment 1 | Corrigendum 2
2013
GTR No. 4 | Amendment 3
2015
GTR No. 4 | Amendment 3 | Appendix 1
2015
GTR No. 4 | Amendment 4
2021
GTR No. 4 | Amendment 4 | Appendix 1
2021
Earlier texts may be available through the
UN Official Document System
.