№ lp_1_2_76170
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Official record of discussions and agreed actions within a UN regulatory working group addressing technical definitions, preparation methods, and testing approaches for wet grip performance of worn tyres.
Organ / institution:
United Nations Economic Commission for Europe
Committee:
Inland Transport Committee
Forum:
World Forum for Harmonization of Vehicle Regulations (WP.29)
Working party:
Working Party on Noise (GRBP)
Working group:
Informal Working Group on Wet Grip on Worn Tyres (WGWT)
Document type:
Meeting minutes
Session:
2nd session
Meeting date:
17 July 2019
Meeting time:
9:00–12:00 CET
Meeting format:
Webconference
Location:
Not specified
Chair / coordination:
WGWT Chair
Participants:
Representatives of industry, national authorities, technical organizations, and international associations
Related documents:
WGWT-02-01; WGWT-02-02 rev1; ASTM F1046-01(2015)
Main topics:
Definition of worn tyre; tread depth tolerances; buffing methods; wear profile; ageing criteria; testing conditions; workplan planning
Decisions:
Agenda and previous minutes adopted; agreement on several technical concepts with pending action items
Action items:
WT01-01 to WT-01-10
Reporting period:
July 2019
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Year:
2025
Region / City:
Remote
Subject:
Wet grip of worn tyres
Document Type:
Draft minutes
Organization / Institution:
Economic Commission for Europe, Inland Transport Committee, World Forum for Harmonization of Vehicle Regulations (WP.29), Working Party on Noise and Tyres (GRBP), Working Group on Wet Grip of Worn Tyres (WGWT)
Author:
Not specified
Target Audience:
Not specified
Period of validity:
2025-2026
Approval Date:
Not specified
Date of last changes:
Not specified
Year:
2025
Region / city:
Geneva
Topic:
Wet grip of worn tyres
Document type:
Draft minutes
Organization / institution:
Economic Commission for Europe, Inland Transport Committee
Author:
N/A
Target audience:
Members of the GRBP and WGWT
Period of validity:
N/A
Date of approval:
N/A
Date of amendments:
N/A
Year:
2024
Region / City:
Geneva
Subject:
Tyre testing, Wet Grip of Worn Tyres
Document type:
Meeting minutes
Organization:
World Forum for Harmonization of Vehicle Regulations (WP.29)
Author:
ETRTO, JASIC
Target Audience:
Members of the Informal Working Group on Wet Grip of Worn Tyres (WGWT)
Period of validity:
N/A
Approval date:
N/A
Amendment date:
N/A
63rd session of the GRBP Informal Working Group on Wet Grip of Worn Tyres (WGWT), November 19th 2024
Year:
2024
Region / city:
Geneva
Topic:
Wet Grip of Worn Tyres
Document Type:
Draft Minutes
Organization / Institution:
Economic Commission for Europe (ECE), Inland Transport Committee, WP.29, GRBP, WGWT
Author:
Not specified
Target Audience:
Technical experts, stakeholders in vehicle regulations
Period of validity:
November 19th, 2024
Approval Date:
Not specified
Date of amendments:
Not specified
Context:
Draft minutes of the 63rd session of the GRBP Informal Working Group on Wet Grip of Worn Tyres, covering discussions on wet grip requirements for C2 and C3 tyres, and the workplan for 2024–2025 for C1 tyres.
Year:
2022
Region / City:
Netherlands, France
Topic:
Tire regulations, Usage purpose, UN regulations
Document Type:
Meeting minutes
Organization / Institution:
ETRTO
Author:
Nicolas de Mahieu
Target Audience:
Members of the IWG WGWT, tire manufacturers, vehicle manufacturers
Effective Period:
2022
Approval Date:
7 July 2022
Amendment Date:
9 July 2022
Year:
2022
Region / City:
Europe
Subject:
Wet grip on worn tyres
Document Type:
Draft minutes
Organization / Institution:
Economic Commission for Europe, Inland Transport Committee, World Forum for Harmonization of Vehicle Regulations (WP.29), Working Party on Noise and Tyres (GRBP)
Author:
IWG WGWT
Target Audience:
GRBP experts, stakeholders in vehicle regulations
Period of Validity:
N/A
Approval Date:
N/A
Date of Changes:
N/A
Note:
Summary
Year:
2025
Region / City:
Remote
Theme:
Wet Grip of Worn Tyres
Document Type:
Draft Minutes
Organization:
Economic Commission for Europe
Author:
Not specified
Target Audience:
Participants of the GRBP Informal Working Group
Period of Validity:
Not specified
Approval Date:
Not specified
Date of Last Revision:
Not specified
Year:
2024
Region / City:
Remote
Topic:
Wet Grip of Worn Tyres
Document Type:
Meeting Minutes
Organization / Institution:
United Nations Economic Commission for Europe (UNECE)
Author:
Co-chairs of the Working Group on Wet Grip of Worn Tyres (WGWT)
Target Audience:
Experts in vehicle regulations, tyre safety, environmental impact
Period of Action:
2024–2025
Approval Date:
June 10th, 2024
Revision Date:
N/A
Year:
2024
Region / City:
Geneva
Topic:
Wet grip of worn tyres, vehicle regulations
Document Type:
Meeting minutes
Organization:
Economic Commission for Europe (ECE), Inland Transport Committee (ITC), Working Party on Noise and Tyres (GRBP), World Forum for Harmonization of Vehicle Regulations (WP.29)
Author:
IWG WGWT
Target Audience:
Experts and stakeholders in vehicle safety and tyre regulations
Effective Period:
2024-2025
Approval Date:
April 17th, 2024
Date of Changes:
N/A
Year:
2024
Region / city:
Geneva
Theme:
Vehicle regulations, Wet Grip Testing, Tyre performance
Document type:
Meeting minutes
Organ / institution:
Economic Commission for Europe
Author:
Not specified
Target audience:
Experts and participants in vehicle regulation and tyre testing
Period of validity:
February 6th 2024
Approval date:
Not specified
Date of amendments:
Not specified
50th session of the GRBP Informal Working Group on Wet Grip on Worn Tyres (WGWT), February 20th 2023
Year:
2023
Region / City:
Geneva
Topic:
Wet Grip on Worn Tyres
Document Type:
Meeting Minutes
Organization / Institution:
UNECE (United Nations Economic Commission for Europe)
Author:
WGWT (Working Group on Wet Grip on Worn Tyres)
Target Audience:
Vehicle safety professionals, regulatory bodies, tyre manufacturers
Period of Effectiveness:
February 20th, 2023
Approval Date:
February 20th, 2023
Modification Date:
N/A
Year:
2022
Region / City:
Europe
Theme:
Vehicle regulations, Wet grip, Tyres
Document type:
Meeting Agenda
Organization / Institution:
Economic Commission for Europe, Inland Transport Committee
Author:
Not specified
Target audience:
Working group members, stakeholders in vehicle regulations, tyre testing
Period of validity:
Until June 2022
Approval date:
Not specified
Date of changes:
Not specified
Year:
2021
Note:
Region / city
Theme:
Vehicle regulations, Tyres
Document type:
Draft Agenda
Organ / institution:
World Forum for Harmonization of Vehicle Regulations (WP.29)
Year:
2021
Region / City:
European Economic Area
Topic:
Vehicle Regulations, Wet Grip on Worn Tyres, Tyre Testing
Document Type:
Draft minutes
Organization:
Economic Commission for Europe, Inland Transport Committee, World Forum for Harmonization of Vehicle Regulations (WP.29), Working Party on Noise and Tyres (GRBP)
Author:
Not specified
Target Audience:
Members of the IWG WGWT, Tyre manufacturers, testing centers
Period of validity:
February 2021
Approval Date:
Not specified
Modification Date:
Not specified
Context:
A record of the 18th session of the GRBP Informal Working Group on Wet Grip on Worn Tyres, documenting discussions on test procedures, workplans, and updates on technical issues.
Year:
2021
Region / city:
Geneva
Topic:
Wet Grip on Worn Tyres
Document type:
Meeting Minutes
Organization:
Economic Commission for Europe (ECE)
Author:
Working Group on Wet Grip on Worn Tyres (WGWT)
Target audience:
Stakeholders in vehicle tyre testing and regulation
Action items:
WT-12-02, WT-14-03, WT-16-01, WT-16-02, WT-17-03, WT-17-05, WT-17-07
Period of validity:
January 2021
Approval date:
January 19th, 2021
Date of amendments:
Not specified
Year:
2025
Region / City:
Remote
Subject:
Wet grip of worn tyres
Document Type:
Draft minutes
Organization / Institution:
Economic Commission for Europe, Inland Transport Committee, World Forum for Harmonization of Vehicle Regulations (WP.29), Working Party on Noise and Tyres (GRBP), Working Group on Wet Grip of Worn Tyres (WGWT)
Author:
Not specified
Target Audience:
Not specified
Period of validity:
2025-2026
Approval Date:
Not specified
Date of last changes:
Not specified
Year:
2025
Region / city:
Geneva
Topic:
Wet grip of worn tyres
Document type:
Draft minutes
Organization / institution:
Economic Commission for Europe, Inland Transport Committee
Author:
N/A
Target audience:
Members of the GRBP and WGWT
Period of validity:
N/A
Date of approval:
N/A
Date of amendments:
N/A
63rd session of the GRBP Informal Working Group on Wet Grip of Worn Tyres (WGWT), November 19th 2024
Year:
2024
Region / city:
Geneva
Topic:
Wet Grip of Worn Tyres
Document Type:
Draft Minutes
Organization / Institution:
Economic Commission for Europe (ECE), Inland Transport Committee, WP.29, GRBP, WGWT
Author:
Not specified
Target Audience:
Technical experts, stakeholders in vehicle regulations
Period of validity:
November 19th, 2024
Approval Date:
Not specified
Date of amendments:
Not specified
Context:
Draft minutes of the 63rd session of the GRBP Informal Working Group on Wet Grip of Worn Tyres, covering discussions on wet grip requirements for C2 and C3 tyres, and the workplan for 2024–2025 for C1 tyres.
Year:
2022
Region / City:
Europe
Subject:
Wet grip on worn tyres
Document Type:
Draft minutes
Organization / Institution:
Economic Commission for Europe, Inland Transport Committee, World Forum for Harmonization of Vehicle Regulations (WP.29), Working Party on Noise and Tyres (GRBP)
Author:
IWG WGWT
Target Audience:
GRBP experts, stakeholders in vehicle regulations
Period of Validity:
N/A
Approval Date:
N/A
Date of Changes:
N/A
Note:
Summary
Year:
2025
Region / City:
Remote
Theme:
Wet Grip of Worn Tyres
Document Type:
Draft Minutes
Organization:
Economic Commission for Europe
Author:
Not specified
Target Audience:
Participants of the GRBP Informal Working Group
Period of Validity:
Not specified
Approval Date:
Not specified
Date of Last Revision:
Not specified