Proposal to introduce requirements for non-original replacement exhaust silencing systems with multiple, manually or electronically adjustable, rider-selectable operating modes or variable geometries (NORESS with “flexibilities”). This is a consolidated version of the amended regulation. For more information on the changes, see document GRB/2018/6 where the changes are marked in bold and strikethrough text.

Proposal to address comments on the adopted Supplement 4:

1. align the flowchart in the appendix to Annex 3, Figure 3c with the amendment to paragraph 3.1.2.1.4.1 (c) of Supplement 3 to the 03 series
2. amend Appendix to Annex 3, Table 1 to limit to pure electric vehicles the options to either use mechanical or electronic devices to control the gear shift or take measures to avoid accelerations greater than 2.0 m/s² (GRB/2018/2 and GRB-67-17)
3. under Annex 7, paragraph 5.2., align the principle of testing between automatic and manual transmission having more than 5 gears.

Proposal to introduce ASEP requirements for L₄ and L₅ category vehicles with PMR > 50 W/kg. The proposal aligns ASEP for high powered L₄ and L₅ vehicles, used for passenger transport, with UN Regulation No 41.04 due to comparable sound emissions levels of L₄ and L₅ vehicles with the ones of L₃ vehicles and the possibility of applying similar measurement methods for sound emissions for those vehicle categories. This proposal is supported by the Commission study on enhanced sound requirements for mopeds, quads and replacement silencers of L-category vehicles which resulted in amendments to UN Regulation Nos 9, 63 and 92 (ref. document WP.29/2017/2).

Proposal to require additional sound emission provisions (ASEP) testing under UN R41.

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.

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.

Draft text as of the 12 December 2018 drafting group meeting.

Presentation regarding small drafting group discussions.

“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.