Working Party on Noise and Tyres | Session 79 | 6-9 Feb
Geneva
Agenda Item 7. (f)
Tyre abrasion

28. The expert of the Task Force on Tyre Abrasion (TF TA) reported on their activities (GRBP-79-47-Rev.1) and proposed to revise the TF TA Terms of Reference (GRBP-79-31). GRBP adopted the revised Terms of Reference, as contained in annex 2.

29. The expert of TF TA presented a proposal for a Supplement to the 04 series of amendments to UN Regulation No. 117 that introduced test methods to measure tyre abrasion (ECE/TRANS/WP.29/GRBP/2024/10, GRBP-79-12-Rev.2). Subject to correcting the references to 5.7.-5.10. in paragraph 3.1., GRBP adopted the proposal, as amended by GRBP-79-12-Rev.2 and requested the secretariat to submit it for consideration and vote at the June 2024 sessions of WP.29 and AC.1 as part of draft Supplement 2 to the 04 series of amendments to UN Regulation No. 117.

30. GRBP noted the outcome of a tyre abrasion study for vehicles of categories M and N conducted by OICA (GRBP-79-37).

Documentation
GRBP-79-02 Noise measurement uncertainties status report to GRBP
GRBP-79-07 UN R117: Proposal for amendment to Supplement 16 to 02 series of amendments (Japan)
GRBP-79-08 UN R117: Proposal for Supplement 2 to the 03 Series of amendments (Japan)
GRBP-79-09 UN R117: Proposal for Supplement 16 to 02 Series of amendments (Japan)
GRBP-79-10 UN R117: Proposal for amendments to GRBP/2024/6, 7 and 9 (Japan)
GRBP-79-12/Rev.2 UN R117: Proposal for amendments to GRBP/2024/10
GRBP-79-21 UN R117: Proposal for Supplement 2 of the 04 Series of amendments (ETRTO)
GRBP-79-22 UN R117: Proposal for Supplement 2 to the 03 Series of amendments (ETRTO)
GRBP-79-23 UN R117: Proposal for Supplement 16 to the 02 Series of amendments (ETRTO)
GRBP-79-31 TF Tyre Abrasion: Updated Terms of Reference
GRBP-79-37 UN R117: Tyre Abrasion Study for vehicles of category M & N (OICA)
GRBP-79-47/Rev.1 Tyre Abrasion task force status report to GRBP
GRBP-79-48/Rev.1 Noise Measurement Uncertainties: Proposal to amend GRBP/2024/8
GRBP-79-49 UN R117: Proposal for amendments to the working document GRBP/2024/12 (France)
GRBP-79-50 UN R117: Proposal for amendments to document GRBP/2024/4 (France)
GRBP/2024/4 UN R117: Proposal for Supplement 2 to the 04 series of amendments (ETRTO)
GRBP/2024/8 Measurement uncertainties when testing in UN Regulations under the purview of GRBP
GRBP/2024/9 UN R117: Proposal for Supplement 2 to the 03 series of amendments (ETRTO)
GRBP/2024/10 UN R117: Proposal for Supplement 02 to the 04 series of amendments
GRBP/2024/12 UN R117: Proposal for Supplement 2 to the 03 series of amendments (ETRTO)