Working Party on Noise and Tyres
← GRBP 76
Session 77
GRBP 78 →
7-10 Feb 2023  · Geneva
Agenda All Documents Formal Informal Report
Filtered: UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance Remove filter
6 Jan 2023 GRBP-77-03 Worn tyres: Revised Terms of Reference of the Informal Working Group on Wet Grip Performance for Tyres in a Worn State
1 Feb 2023 GRBP-77-07 A general approach how to handle noise measurement uncertainty
1 Feb 2023 GRBP-77-08 Proposal for a Revision 2 to the general approach how to handle noise measurement uncertainty
3 Feb 2023 GRBP-77-10/Rev.1 Noise Measurement Uncertainties informal group status report to GRBP
2 Feb 2023 GRBP-77-11 UN R117: Proposal for C1 tyre rolling noise temperature correction update
2 Feb 2023 GRBP-77-12 UN R117: Rolling sound emission - C1 temperature correction proposal
3 Feb 2023 GRBP-77-23 UN R117: Request for consideration of a special case during the 78th (August 2023) GRBP session (AAPC)
9 Feb 2023 GRBP-77-30 WGWT status report to GRBP
9 Feb 2023 GRBP-77-32 UN R117: Proposal to amend document GRBP/2023/5 (ETRTO)
New and Upcoming
System Pages
Regulations
Working Groups
GlobalAutoRegs
© 2026 GlobalAutoRegs