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 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 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 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.

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.

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.

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.

Draft text pursuant to the 5th task force session.

Terms of Reference as approved by the Working Party on Noise (GRB) during its 68th (October 2018) session (Annex III to the GRB session report).

Proposal to correct a reference in Supplement 3 to the 03 series of amendments, 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 to

1. correct a type in Annex 7- Appendix 2, Part 2, Paragraph 5 where the snow group index should read “1.00”, not “100” as appeared erroneously in the adopted text
2. correct the text where the word “tyres” was inadvertently omitted from Paragraph 2.1.
3. align the provisions of UN R117 regarding approval numbers and markings with the provisions of Schedule 4 to the revised 1958 Agreement.

Proposal to

1. exempt hybrid vehicles that do not provide valid test results (e.g., internal combustion engine active under test conditions)
2. clarify the text concerning permissible AVAS operating conditions
to differentiate indoor and outdoor facility requirements (e.g., weather station requirement) and
3. update flowcharts in Annex 3 in line with text.
4. add a footnote to the scope to exempt electrified vehicles where the internal combustion engine (ICE) operates under the test conditions
5. 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
6. clarify under paragraph 6.2.6. that a manufacturer may install an attenuation to enable the system to operate at different sound levels
7. split and clarify indoor and outdoor testing specifications under Annex 3 paragraph 2.2. to account for different needs such as a weather station
8. amend the flowcharts in the Annex 3 Appendix to better reflect the regulation text
9. align the transitional provisions in the 01 series of amendments with the format introduced following Revision 3 of the 1958 Agreement.

Presentation on the research paper “Experimental approach for evaluating uncertainties associated to stationary vehicle noise according to ISO 5725”.

Task force chair discussion presentation on “How to Reflect Revisions on Requirements for Backward Field of Vision – by Transcription or by Reference? Advantages and Disadvantages”.

Proposal from the ASEP II informal group for clarifications to the Regulation.

Proposal to transpose the modified requirements for non-original replacement exhaust silencing systems (NORESS) from UN R92 (Replacement exhaust silencing systems for motorcycles) into UN R59.

Proposal from the group of interested experts to allow for the type approval of special-use tyres designed for severe snow conditions.

Summary of discussions in the VRU-Proxi informal group on reversing detection and field of view.

Proposal to align the provisions for retreaded tyres to be tested and marked with the three-peak-mountain snow-flake (3PMSF) symbol with the amendment proposals to UN R117 (document GRBP/2019/19).

Proposal to correct inconsistencies on the exemption conditions for the additional sound emission provisions (ASEP) for vehicles with variable gear ratios or automatic transmission with non-lockable gear ratios.

Proposal for an amendment to complement the content of working document GRVA/2018/5. The proposal includes amendments to:

1. The Standard Reference Test Tyre (SRTT) denominations
2. Remove the discrimination between the two Class C3 tyres
3. Clarify that there are no C3 tyres in the scope of this UN Regulation “not marked with speed symbol”
4. Align Annex 6 with the most recent amendments made to standard ISO 28580
5. Define “standard deviation” as appropriate in the text
6. Clarify that, in the cases of C2 and C3 tyres, the “Reference (test) pressure” and the value “Pr” correspond to the indication of the inflation pressure which is always marked on the sidewall
7. Use “repeatability” in lieu of inaccurate “reproducibility”
8. Update test report forms
9. Include the date on which the new proposed supplement of UN Regulation No. 117 will apply
10. Improve the description of the evaluation of the rolling sound emission test
Correct the figure in Annex 2, Appendix 2, and
11. Update cross references pursuant to paragraph renumbering.

Proposal to clarify that the gear ratio i+1 by definition has an acceleration (not an “engine speed”) lower than gear ratio i.

Proposal to introduce mandatory additional sound emission provisions (ASEP) testing.

Proposal to define “electronic” as a “principle of operation by electric or electro-magnetic force with amplifier and speaker or resonator”.

Proposal is to correct an omission regarding the compensating resevoir fill time thereby aligning UN R41 with the other noise UN Regulations Nos. 9, 51 and 63.

Proposal to allow multiple exhaust and/or silencing system configurations to be explicitly listed under the same motorcycle type approval in order to reduce redundancy and number of separate approvals and documentation.

Proposal to reconcile UN R138 with UN R51 with regard to maximum sound pressure levels at speeds greater than 20 km/h by clarifying that the 75 dB(A) limit for AVAS under UN R138 concerns only the 0-20 km/h speed range.

Open issues for discussion, including “starting tests” questions and the number of RD-ASEP tests to be conducted between 10 and 100 km/h.

ASEP II informal group draft amendments to the annex on “Measuring method to evaluate compliance with the Real Driving Additional Sound Emission Provisions (RD-ASEP)” based upon original China proposal.

ASEP II informal group amendments to paragraphs 1, 2, 6.2.3., 6.2.4.

Proposal for amendments to the draft Supplement 6 to the 03 series of amendments submitting clarifications to the text from the ASEP II informal group.

Presentation on the status of the 2019 update to ISO 16254 (Acoustics – Measurement of sound emitted by road vehicles of category M and N at standstill and low speed operation – Engineering method). ISO 16254 specifies an engineering method for measuring the sound emitted by M and N category road vehicles at standstill and low speed operating conditions.

Presentation of information confirming that there would be no conflict between the draft proposal of minimum reverse-warning requirements and UN R138 on quiet road transport vehicles (audible approaching vehicle warning systems).

Proposal to align UN R51 with ISO 5130:2019 and thereby set requirements for the microphone position as a function of the exhaust outlet configuration.

Report on discussions within the Group of Interested Experts on provisions for UN R117.

Combined draft text proposals prepared by the ASEP II Drafting Group.

Version as subsequently revised by the full ASEP II informal group.

Demonstration provided by the US Motorcycle Manufacturers Association.

Statistical data on road transport from the EU.

Revised text based upon document TFRWS-06-09/Rev.3.

EC recommendations based on the Study on some safety-related aspects of tyre use.