Working Party on Automated and Connected Vehicles | Session 1 | 25-28 Sep 2018
Working Party on Noise | Session 69 | 23-25 Jan 2019

21. The expert of France proposed a wet adhesion requirement for C1 tyres in a worn state (ECE/TRANS/WP.29/GRB/2019/6 and GRB-69-08). The proposal received comments from ETRTO (GRB-69-10). GRB also noted a recent study on used tyres (GRB-69-09). GRB was of the view that this topic should be pursued in the framework of a new IWG and adopted its Terms of Reference (GRB-69-23), as reproduced in Annex V to the session report. Various experts expressed their willingness to contribute to the activities of the newly established IWG. The experts from France and the European Commission volunteered to act as Chair and Co-Chair, respectively, while ETRTO agreed to provide secretariat support.

23. The expert from ETRTO recalled their proposal for draft amendments tabled at the previous session (ECE/TRANS/WP.29/GRVA/2018/5 and GRB-68-12) and requested GRB to postpone the discussion to the next session.

Documentation
GRB-68-12 | UN R117: Comments on the Supplement proposal GRVA/2018/5 (ETRTO)
GRB-69-08 | UN R117: Amendment proposal to introduce of worn tyre provisions (France)
GRB-69-09 | 2017 Ernst & Young study on used tyres
GRB-69-10 | UN R117: Comments on the proposal for worn-tyre provisions (GRB/2019/6) (ETRTO)
GRB-69-19 | Status report on snow tyre provisions
GRB-69-23 | UN R117: Draft terms of reference for an informal working group on wet grip performance of tyres in worn state (France)
GRB/2019/3 | UN R117: Proposal for a Supplement (Netherlands)
GRB/2019/4 | UN R117: Proposal for a Supplement to the 02 series of amendments (Russia)
GRB/2019/6 | UN R117: Proposal for a Supplement (France)
GRRF/2016/42 | Proposal for Supplement 10 to the 02 series of amendments to Regulation No. 117 (ETRTO)
GRRF/2017/7 | Proposal for Corrigendum to Regulation No. 117 (ETRTO)
GRVA/2018/5 | UN R117: Proposal for a Supplement (ETRTO)