previous regulation
next regulation
UN Regulation No. 117
Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance
Overseen by GRB, GRRF, and GRBP
Revisions
Revision 4 | Amendment 7
Revision 4 | Amendment 7 reproduces the following amendment(s):
03 series of amendments ( 4 Jan 2023)
UN R117: Proposal for new 03 series of amendments

Proposal to introduce a procedure and thresholds on wet grip performance for C1 tyres in worn state.

Authentic and legally binding text WP.29/2022/83
New and Upcoming
System Pages
Regulations
Working Groups
GlobalAutoRegs
© 2025 GlobalAutoRegs