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Date Reference Description Status
21 Jan 2021 GRBP-73-08
Proposal to amend the Worn Tyres working group terms of reference
Working Party Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Proposal to include requirements for wet grip of tyres of classes C2 and C3 in worn state to the scope of the working group activities.
21 Jan 2021 GRBP-73-09
UN R75: Proposal for a corrigendum to the French version of the text
Working Party Informal Motorcycle and Moped Tires Motorcycle Tires Uniform Provisions Concerning the Approval of Pneumatic Tyres for Motor Cycles and Mopeds
21 Jan 2021 GRBP-73-11
ETRTO Tyre Performance Study
Working Party Informal Vehicle Noise Emissions Vehicle Noise Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Overview of UTAC CERAM testing designed to consider the impact of additional tightening of tyre performance limits on the balance between legal requirements (rolling resistance, wet grip and rolling sound emission) and other performance aspects not subject to legal requirements.
21 Jan 2021 GRBP-73-19
UN R117: Proposal to introduce an Ice Tyre definition for C1 class tyres
Working Party Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
27 Jan 2021 GRBP-73-22
Tyre industry preliminary assessment of wet grip on worn C2 and C3 tyres
Working Party Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
28 Jan 2021 GRBP-73-27
Working group on Worn Tyres: Proposal for revised terms of reference
Working Party Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
21 Feb 2021 WT-18-02
Worn tyres: C2 and C3 considerations
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
05 Mar 2021 WP.29-183-06
UN R117: Proposal to amend document WP.29/2021/8
World Forum Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Proposal to replace "markings" by "approval mark" in paragraph 4.4.1. to clearly specify the intended application of the provision (i.e., to the approval mark, not to all markings).
05 Mar 2021 WP.29-183-07
1958 Agreement: Request for guidance on Contracting Parties not following rules
World Forum Informal 1958 Agreement 1958 Agreement Agreement Concerning the Adoption of Uniform Technical Prescriptions for Wheeled Vehicles, Equipment and Parts which can be Fitted and/or be Used on Wheeled Vehicles and the Conditions for Reciprocal Recognition of Approvals Granted on the Basis of these Prescriptions
22 Mar 2021 WT-19-02
Worn tyres: Concept for C2 and C3 tyres
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
21 Apr 2021 TFMU-10-03
UN R117: Comments on temperature selection and noise measurement uncertainties
Informal Subgroup Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
26 Apr 2021 DETA-41-04
DETA and Unique Identifier (UI): Tire industry perspective and questions
Informal Group Informal Database for the Exchange of Type Approval Documentation DETA n.a.
15 Jun 2021 IWVTA-36-09/Rev.1
UN R0: Request for guidance on transitional provisions
Informal Group Informal International Whole Vehicle Type Approval System (IWVTA) International Whole Vehicle Type Approval UN Regulation No. 0 on uniform provisions concerning the International Whole Vehicle Type Approval
21 Jun 2021 WT-23-03
UN R117: Comments on the draft provisions for worn tyres
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
21 Jun 2021 DETA-41-08
DETA: Proposal for partitioning documents and file names
Informal Group Informal Database for the Exchange of Type Approval Documentation DETA n.a.
20 Jun 2021 WT-22-05
Draft presentation on worn tyres post processing provisions
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
13 Jul 2021 TFMU-13-04
UN R51: Remark on temperature correction
Informal Subgroup Informal Vehicle Noise Emissions Vehicle Noise Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions
05 Jul 2021 GRBP/2021/17
UN R117: Proposal for a Supplement to the 02 series of amendments
Working Party Working Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Proposal to introduce provisions for ice grip tyres, clarify Conformity of Production, sample submissions, and testing methods, and to make editorial corrections and improvements.
12 Sep 2021 GRBP-74-29
UN R109: Comments on proposal for amendments
Working Party Informal Retreaded Tires for Commercial Vehicles CV Retreaded Tires Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Commercial Vehicles and their Trailers
12 Sep 2021 GRBP-74-30
UN R109: Proposal for amendments
Working Party Informal Retreaded Tires for Commercial Vehicles CV Retreaded Tires Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Commercial Vehicles and their Trailers Proposal to amend ECE/TRANS/WP.29/GRBP/2021/16
12 Sep 2021 GRBP-74-31
UN R117: Proposal for amendments to the 02 series of amendments
Working Party Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
12 Sep 2021 GRBP-74-32
UN R (Studded Tyres): Proposals for amendments
Working Party Informal UN Regulation for the Approval of Studded Tyres Studded Tyres This proposal aligns with the “Alpine symbol” location that is not restricted to the lower area of the tyre as prescribed in UN Regulation No. 117, especially considering the larger dimensions of the “Snow Grip Marking for Studded Tyres"
14 Sep 2021 TFVS-04-11/Rev.1
Tyres and Road Traffic Noise: Where is the Potential?
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance
12 Sep 2021 GRBP-74-29/Rev 1
UN R108: Comments on proposal for amendments
Working Party Informal Retreaded Tires for Motor Vehicles Retreaded Tires Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Motor Vehicles and their Trailers
12 Sep 2021 GRBP-74-30/Rev 1
UN R109: Comments on the proposal for amendments
Working Party Informal Retreaded Tires for Commercial Vehicles CV Retreaded Tires Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Commercial Vehicles and their Trailers
13 Sep 2021 GRBP-74-35
UN R108: Proposal for amendments
Working Party Informal Retreaded Tires for Motor Vehicles Retreaded Tires Uniform Provisions Concerning the Approval for the Production of Retreaded Pneumatic Tyres for Motor Vehicles and their Trailers Corrections and alignment to document ECE/TRANS/WP.29/GRBP/2021/15
14 Sep 2021 WT-28-03
Proposal for revised Worn Tyres working group terms of reference
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance