Working Party
Session 73 | Geneva | 26-29 Jan
Latest document posted on 21 Jan 2021
Reference No. Description (click for more information)
GRBP-71-13/Rev.4
GRBP Meeting Schedule, Holidays & Milestones
04 Jan 2021 Working Party Informal Documents GRBP-71-13/Rev.4
GRBP-73-02
Proposal to amend the Worn Tyres informal working group Terms of Reference (EC)
04 Jan 2021 Working Party Informal Documents 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 expand the scope of the activity to include C2 and C3 tyres. GRBP-73-0002
GRBP-73-03
UN R141: Proposal to amend the 01 series of amendments
04 Jan 2021 Working Party Informal Documents Tire Pressure Monitoring Systems Tire Pressure Monitoring Systems Uniform provisions concerning the approval of vehicles with regard to their tyre pressure monitoring systems Proposal from the TPMSTI task force to revise the communication interface protocol of TPMS between towing and towed vehicles of categories N2, N3 and O3, O4, respectively (described in Annex 5 on the basis of the ISO bus requirements) in alignment with UN R13 and ISO updates. The proposal further corrects and clarifies provisions across TPMS, TPRS and CTIS. GRBP-73-0003
GRBP-73-04
UN R41: Proposal for amendments to the 04 series of amendments (IMMA)
18 Jan 2021 Working Party Informal Documents Motorcycle Noise Motorcycle Noise Uniform Provisions Concerning the Approval of Motor Cycles with regard to Noise Proposal to correct some references, which need to be updated as a consequence of document WP.29/2020/70, adopted at the June 2020 WP.29 session, notably<ol class="alpha"><li>Paragraph 5.4.1 renumbered as paragraph 5.5.1.</li><li>Paragraphs 5.4. and 5.5. respectively renumbered as paragraphs 5.5. and 5.6.</li></ol> GRBP-73-0004
GRBP-73-05
UN R51: Proposal for 04 series of amendments
19 Jan 2021 Working Party Informal Documents Vehicle Noise Emissions Vehicle Noise Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions Proposal by experts from IWG ASEP for new series of amendments. GRBP-73-0005
GRBP-73-06
Running order of the 73rd (January 2021) GRBP session
21 Jan 2021 Working Party Informal Documents GRBP-73-0006
GRBP-73-07
Status report of the task force on Studded Tyres
21 Jan 2021 Working Party Informal Documents UN Regulation for the Approval of Studded Tyres Studded Tyres GRBP-73-0007
GRBP-73-08
Proposal to amend the Worn Tyres working group terms of reference (ETRTO)
21 Jan 2021 Working Party Informal Documents 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. GRBP-73-0008
GRBP-73-09
UN R75: Proposal for a corrigendum to the French version of the text (ETRTO)
21 Jan 2021 Working Party Informal Documents Motorcycle and Moped Tires Motorcycle Tires Uniform Provisions Concerning the Approval of Pneumatic Tyres for Motor Cycles and Mopeds GRBP-73-0009
GRBP-73-10
General information and WP.29 highlights relevant to GRBP activities
21 Jan 2021 Working Party Informal Documents GRBP-73-0010
GRBP-73-11
ETRTO Tyre Performance Study (ETRTO)
21 Jan 2021 Working Party Informal Documents 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. GRBP-73-0011
GRBP-73-12
Status report of the Reversing Warning Sounds task force
21 Jan 2021 Working Party Informal Documents Audible Reversing Warning Systems Reversing Warning GRBP-73-0012
GRBP-73-13
Status report of the TPM and Tyre Installation task force
21 Jan 2021 Working Party Informal Documents Tire Pressure Monitoring Systems Tire Pressure Monitoring Systems Uniform provisions concerning the approval of vehicles with regard to their tyre pressure monitoring systems Tyre Installation Tyre Installation Regulation on uniform provisions concerning the approval of motor vehicles with regard to the installation of their tyres (tentative title pending regulation development) GRBP-73-0013
GRBP-73-14
Status report of the Sound Measurement Uncertainties informal working group
21 Jan 2021 Working Party Informal Documents Vehicle Noise Emissions Vehicle Noise Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions GRBP-73-0014
GRBP-73-15
General Approach to Estimate Sound Measurement Uncertainties
21 Jan 2021 Working Party Informal Documents Vehicle Noise Emissions Vehicle Noise Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions GRBP-73-0015
GRBP-73-16
Revised terms of reference for the Sound Measurement Uncertainties informal group
21 Jan 2021 Working Party Informal Documents 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 GRBP-73-0016
GRBP-73-17
UN R51: Proposal to amend the 03 series of amendments
21 Jan 2021 Working Party Informal Documents Vehicle Noise Emissions Vehicle Noise Uniform Provisions Concerning the Approval of Motor Vehicles having at least Four Wheels with regard to their Noise Emissions Measurement Uncertainties informal group proposal to clarify the text and to amend:<ol class="alpha"><li>Annex 3, Paragraph 1.4. to delete determination of the vehicle speed by independent speed measuring devices</li><li>Annex 3, Paragraph 1.5. to clarify that no determination of the wind speed is needed for indoor testing</li><li>Annex 3, Paragraph 2.1.3. to clarify and differentiate between indoor and outdoor testing</li><li>Annex 3, Paragraph 2.1.3.1.2. to clarify the temperature range for indoor facilities.</li><li>Annex 3, Paragraph 2.1.3.2.2. to clarify the temperature range for outdoor facilities.</li></ol> GRBP-73-0017
GRBP-73-18
Status report of the Worn Tyres working group
21 Jan 2021 Working Party Informal Documents 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 GRBP-73-0018
GRBP-73-19
UN R117: Proposal to introduce an Ice Tyre definition for C1 class tyres (ETRTO)
21 Jan 2021 Working Party Informal Documents 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 GRBP-73-0019
GRBP/2021/1
GRBP: Annotated provisional agenda for the 73rd (January 2021) session
13 Nov 2020 Working Party Agenda GRBP/2021/0001
GRBP/2021/2
UN R108: Proposal for amendments (BIPAVER)
13 Nov 2020 Working Party Formal Documents 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 Proposal to align the provisions for retreaded tyres with the proposals of France for UN Regulation No. 30 and of the European Tyre and Rim Technical Organization (ETRTO) for UN Regulation No. 117. GRBP/2021/0002
GRBP/2021/3
UN R109: Proposal for amendments (BIPAVER)
13 Nov 2020 Working Party Formal Documents 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 align the provisions for retreaded tyres with the proposals of the European Tyre and Rim Technical Organization (ETRTO) for UN Regulations Nos. 54 and 117. GRBP/2021/0003
GRBP/2021/4
UN R30: Proposal for a new Supplement to the 02 series of amendments (ETRTO)
13 Nov 2020 Working Party Formal Documents Pneumatic Tires Pneumatic Tires Uniform Provisions Concerning the Approval of Pneumatic Tyres for Motor Vehicles and their Trailers Proposal to amend the extended mobility tyre (EMT) symbol following the detection of dimensional inconsistencies within the International Organization for Standardization Working Group (ISO) TC31/SC3/WG19, where the dimension "0,33h" was judged wrong and constituting an unnecessary over constraint and to amend the inflation value to be used for the tyre conditioning when assessing the "flat tyre running mode" of "run flat tyres" and of "extended mobility tyres". GRBP/2021/0004
GRBP/2021/5
Studded tyres: Proposal for a draft new UN Regulation
13 Nov 2020 Working Party Formal Documents UN Regulation for the Approval of Studded Tyres Studded Tyres Proposal prepared by the Task Force on Studded Tyres (TF ST) to establish a new UN Regulation on uniform provisions concerning the approval of studded tyres with regard to their snow performance (distinguished from studdable tyres regulated by UN Regulation No. 117). GRBP/2021/0005
GRBP/2021/6
UN R141: Proposal for Supplement 1 to the 01 series of amendments
13 Nov 2020 Working Party Formal Documents Tire Pressure Monitoring Systems Tire Pressure Monitoring Systems Uniform provisions concerning the approval of vehicles with regard to their tyre pressure monitoring systems Proposal prepared by the experts on communication interfaces of the Task Force on Tyre Pressure Monitoring System and Tyre Installation (TF TPMSTI) to update the requirements on the communication interfaces between towing and towed vehicles. GRBP/2021/0006
GRBP/2021/7
UN R124: Proposal for amendments (Germany)
17 Nov 2020 Working Party Formal Documents Passenger Car and Trailer Wheels Passenger Car/Trailer Wheels Uniform Provisions Concerning the Approval of Wheels for Passenger Cars and their Trailers Proposal to require wheel attachments with three or more fixing components (nuts or studs) in the scope of the Regulation, to restrict the difference in pitch circle diameter (PCD) of a wheel type comprised of more than two versions, to carry out additional rotating bending tests on each version with a PCD difference to a tested version of more than 6.5 mm, and to establish specifications for comparison of replica wheels with the minimum level of the vehicle manufacturer´s replacement wheels. GRBP/2021/0007