UN R9: Proposal for the 08 series of amendments
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Proposal to align ASEP for high powered L4 and L5 vehicles, used for passenger transport, is proposed in line 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 is also 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).

Reference Number: GRB-68-22
Origin: EC
Date: 13 September 2018
Proposal Status: Superseded
Related Documents:
GRB-66-10 | Proposal for amendments to UN Regulation No. 9 to introduce ASEP requirements for L4 and L5 category vehicles with PMR > 50 W/kg
GRB-69-14 | UN R9: Proposal for amendments to the draft 08 series of amendments
WP.29/2017/2 | Proposal for Supplement 3 to the 07 series of amendments to Regulation No. 9
WP.29/2019/6 | UN R9: Proposal for the 08 series of amendments
Discussion(s):
Working Party on Noise | Session 68 | 12-14 Sep 2018

3. The expert from the European Commission proposed to introduce additional sound emission provisions (ASEP) for L4 and L5 category vehicles with the power-to-mass ratio (PMR) of more than 50 W/kg (ECE/TRANS/WP.29/GRB/2018/7 and GRB-68-22). GRB adopted the proposals, as amended (Annex II), and requested the secretariat to submit them to WP.29 and to the Administrative Committee (AC.1) for consideration and vote at their March 2019 sessions as draft 08 series of amendments to UN Regulation No. 9.

67. In particular, the GRBP Chair mentioned that GRBP had adopted new series of amendments to UN Regulations Nos. 9 (Noise of three-wheeled vehicles) and 92 (Replacement exhaust silencing systems for motorcycles).

World Forum for the Harmonization of Vehicle Regulations | Session 176 | 12-16 Nov 2018

3. The expert from the European Commission proposed to introduce additional sound emission provisions (ASEP) for L4 and L5 category vehicles with the power-to-mass ratio (PMR) of more than 50 W/kg (ECE/TRANS/WP.29/GRB/2018/7 and GRB-68-22). GRB adopted the proposals, as amended (Annex II), and requested the secretariat to submit them to WP.29 and to the Administrative Committee (AC.1) for consideration and vote at their March 2019 sessions as draft 08 series of amendments to UN Regulation No. 9.

67. In particular, the GRBP Chair mentioned that GRBP had adopted new series of amendments to UN Regulations Nos. 9 (Noise of three-wheeled vehicles) and 92 (Replacement exhaust silencing systems for motorcycles).