Discussion paper regarding future noise and tyre work priorities.

Proposal to introduce a definition for “Electronic” to mean a principle of operation by electric or electro-magnetic force with amplifier and speaker or resonator in order to address new technologies enabling a driver-actuated audible signal of the presence of a vehicle in a dangerous traffic situation.

Proposal to address non-negligible differences in sound performance in cases where COP tests are carried out under conditions that differ from those used for the granting of the type approval. The proposal introduces conditions, procedures, and corrections to be applied to L_urban to account for the difference in test conditions.

Proposal to:

1. add a footnote to the scope to exempt electrified vehicles where the internal combustion engine (ICE) operates under the test conditions
2. clarify the intention of paragraph 6.2.:
   • that AVAS may be operational outside the specified speed ranges (e.g., in the USA where the speed range extends to 30 km/h),
   • align maximum sound with UN R51.03 ASEP, and
   • explicitly specify that the AVAS may function even when the ICE is running
3. clarify under paragraph 6.2.6. that a manufacturer may install an attenuation to enable the system to operate at different sound levels
4. split and clarify indoor and outdoor testing specifications under Annex 3 paragraph 2.2. to account for different needs such as a weather station
5. amend the flowcharts in the Annex 3 Appendix to better reflect the regulation text.

“Planned obsolescence is not inevitable: Environmental and social impacts related to the general removal of tires at 3 mm tread depth across the European Union” Document provided by the GRB secretariat in relation to France presentation on worn-tyre provisions under UN R117.

Highlighting of the changes in the proposal to ensure that that P-type tyres can be distinguished from non-P-type tyres to support understanding of the proposal.

ETRTO response to UK question on the availability of extended mobility tyres (EMT) on the market.

Proposal to correct an inconsistency in document GRB-68-22 (adopted along with GRB/2018/7 and submitted for consideration at the March 2019 WP.29 session as WP.29/2019/6) regarding the ASEP exemption conditions for vehicles with variable gear ratios or automatic transmission with non-lockable gear ratios.

Draft statement under preparation by the TyreGTR informal group

Editorial amendments to proposed transitional provisions

Proposal to introduce two extra stages with limits (stage 3 and stage 4) for the rolling sound emission, wet grip performance and rolling resistance coefficient. (Stage 2 for wet grip performance is omitted intentionally in this proposal.)

Proposal to align the provisions of UN R117 regarding approval numbers and markings with the provisions of Schedule 4 to the revised 1958 Agreement.

Proposal to ensure that that P-type tyres can be distinguished from non-P-type tyres.

Proposal to introduce provisions for “worn tyre” thresholds and test procedures.

Proposal to clarify the identification, marking and test provisions applicable to tyres designed for speeds above 240 km/h.

Proposal by the Informal Working Group (IWG) on Additional Sound Emission Provisions (ASEP) to correct a reference in Supplement 3 to the 03 series of amendments to UN R51.

Proposal by the Informal Working Group (IWG) on Additional Sound Emission Provisions (ASEP) to introduce transitional provisions in line with the transitional provisions in Supplement 3 and to reintroduce a sentence deleted by mistake in Supplement 4 to the 03 series of amendments to UN Regulation No. 51.

Proposal by the Informal Working Group on Additional Sound Emission Provisions (ASEP) to introduce transitional provisions for Supplements 4 and 5 to the 03 series of amendments to UN R51 (in line with the transitional provisions of Supplement 3), to correct a reference and to clarify the requirements for stationary sound.

Proposal by the Informal Working Group on Additional Sound Emission Provisions (ASEP) to introduce a transitional provision in line with the transitional provisions of Supplement 3. The new transitional provision should be added to the text of draft Supplement 5 to the 03 series of amendments to UN R51 which was adopted by the Working Party on Noise at its sixty-eighth session (GRB/2018/10).