Thursday, 8 January 2026
Week 02
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Task Force on the Fitness of GRVA Regulations for Application to ADS Veh...
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ITS Task Force on Vehicular Communications | Session 12 | 23 Jan
Environmental and Propulsion Performance Requirements for L-category Veh...
EqOP Task Force on Restraint Requirements | Session 2 | 28 Jan
GRBP Task Force on Automated Vehicle Regulation Screening | Session 21 |...
Task Force on the Fitness of GRVA Regulations for Application to ADS Veh...
Event Data Recorders and Data Storage Systems for Automated Driving | Se...
Special Interest Group on Emergency Door Openings | Session 4 | 3-5 Feb
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Agenda for the 39th Worn Tyres working group session
Reference Number:
WT-39-01
Meeting Session(s):
39th WT session (13 May 2022)
Document date:
13 May 22
Download from UNECE:
.docx format
WT-39-04 Attendance list from the 39th Worn Tyres working group session
Download from UNECE:
.docx format
WT-39-05 Report from the 39th Worn Tyres working group session
Download from UNECE:
.docx format
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Wet Grip on Worn Tyres
Session 39
13 May 2022 | Web conference
Meeting documents
Session agenda
Informal submissions
Session report
Worn tyres cluster definition and threshold
Reference Number:
WT-39-02
Submitted by:
ETRTO
Meeting Sessions:
39th WT session (13 May 2022)
Document date:
13 May 22
Relevant to
UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance
View full document file for more information
Threshold proposal for C2 and C3 tyres wet grip in worn state
Reference Number:
WT-39-03
Submitted by:
ETRTO
Meeting Sessions:
39th WT session (13 May 2022)
Document date:
13 May 22
Relevant to
UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance
13 May 2022
Worn tyres cluster definition and threshold (ETRTO)
WT-39-02
2022-05-13
13 May 2022
Threshold proposal for C2 and C3 tyres wet grip in worn state (ETRTO)
WT-39-03
2022-05-13