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).
| Reference Number: | WP.29/2019/6 |
| Meeting Session(s): | 177th WP.29 session (11-15 Mar 2019) |
| Document date: | 20 Dec 18 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R9 Three-Wheeled Cycle Noise |
| Adoption Vote | |
| This proposal (WP.29/2019/6) was adopted by the World Forum. Seventeen Contracting Parties out of the 29 applying UN R9 were present for the vote by AC.1. Seventeen voted in favor with zero against and zero abstaining. | |
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Proposal to introduce mandatory additional sound emission provisions (ASEP) tests and to correct inconsistencies in the ASEP exemption conditions for vehicles with variable gear ratios or automatic transmission with non-lockable gear ratios.
| Reference Number: | WP.29/2020/2 |
| Meeting Session(s): | 180th WP.29 session (9-12 Mar 2020) |
| Document date: | 19 Dec 19 |
| Document status: | Adopted text published |
| Regarding: | UN R9 Three-Wheeled Cycle Noise |
| Adoption Vote | |
| This proposal (WP.29/2020/2) was adopted by the World Forum. Twenty Contracting Parties out of the 29 applying UN R9 were present for the vote by AC.1. Twenty voted in favor with zero against and zero abstaining. | |
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Proposal to align the 08 series of amendments to UN Regulation No. 9 with standard 10844:2014 of the International Organization of Standardization (ISO).
| Reference Number: | WP.29/2022/3 |
| Meeting Session(s): | 186th WP.29 session (7-11 Mar 2022) |
| Document date: | 14 Dec 21 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R9 Three-Wheeled Cycle Noise |
| Adoption Vote | |
| This proposal (WP.29/2022/3) was adopted by the World Forum. Thirty-two Contracting Parties out of the 45 applying UN R9 were present for the vote by AC.1. Thirty-one voted in favor with zero against and one abstaining. | |
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Proposal to allow the use of the test track as specified in ISO 10844:2021.
| Reference Number: | WP.29/2025/67 |
| Meeting Session(s): | 196th WP.29 session (23-27 Jun) |
| Document date: | 09 Apr 25 |
| Document status: | Adopted by WP.29 |
| Regarding: | UN R9 Three-Wheeled Cycle Noise |
| View full document file for more information | |