GAR | Rule Text

previous regulation

next regulation

UN Regulation No. 117

Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance

Revision 5

This revision reproduces the following amendment(s):

02 series of amendments | Supplement 9 ( 9 Feb 2017)

02 series of amendments | Supplement 10 (11 Jan 2020)

02 series of amendments | Supplement 11 (25 Sep 2020)

02 series of amendments | Supplement 12 ( 3 Jan 2021)

02 series of amendments | Supplement 13 (30 Sep 2021)

02 series of amendments | Supplement 14 ( 8 Oct 2022)

03 series of amendments ( 4 Jan 2023)

UN R117: Proposal for Supplement 12 to the 02 series of amendments

Proposal to adapt the rolling-sound measurement procedures to accommodate special C2 tyres presenting a section width wider than 200 mm, aspect ratio lower than 55, rim diameter code lower than 15 and without any dual fitting indication (i.e. the front size 175/75R15 LT and the rear size 235/50R14 LT or the front size 175/75R15 LT and the rear size 265/50R14 LT).

Authentic and legally binding text WP.29/2020/75

Reference Number:	EDR-DSSAD-29-05/Rev.1
Meeting Session(s):	29th EDR-DSSAD session (30 Sep-2 Oct)
Document date:	03 Sep 25
Regarding:	Automated Driving \| DSSAD

Reference Number:	EDR-DSSAD-29-01/Rev.2
Meeting Session(s):	29th EDR-DSSAD session (30 Sep-2 Oct)
Document date:	03 Sep 25
Regarding:	UN R160 EDR-Light Vehicles \| UN R169 EDR-Heavy vehicles \| DSSAD

Reference Number:	GRBP-82-29
Meeting Session(s):	82nd GRBP session (3-5 Sep)
Document date:	03 Sep 25
Regarding:	Tyre abrasion
View full document file for more information

Reference Number:	GRBP-82-28
Meeting Session(s):	82nd GRBP session (3-5 Sep)
Document date:	03 Sep 25
Regarding:	UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance