Working Party on Noise and Tyres
โ† GRBP 82
GRBP 84 โ†’
10-13 Feb  ยท Geneva
Agenda All Documents Formal Informal
Filtered: UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance Remove filter
GRBP/2026/6 UN R117: Proposal for a Supplement 4 to the 04 series of amendments (ETRTO) 28 Nov 2025