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Task Force on the Fitness of GRVA Regulations for Application to ADS Veh...
Informal Working Group on Automated Driving Systems | Session 20 | 14 Ja...
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Working Party on Noise and Tyres | Session 83 | 10-13 Feb 2026
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Proposal for Supplement 1 to the 07 series of amendments to Regulation No. 9
Reference Number: WP.29/2015/59

Proposal to update the reference to the latest version of the ISO 10844 and to introduce transitional provisions for the shift of the test track requirements from ISO 10844: 1994 to ISO 10844: 2014.

Meeting Sessions: 166th WP.29 session (23-26 Jun 2015)
Document date: 10 Apr 15
Document status: Adopted text published
Relevant to
UN Regulation No. 9 | Three-Wheeled Cycle Noise
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Proposal for the 07 series of amendments to Regulation No. 9
Reference Number: WP.29/2013/2

Text adopted by the Working Party on Noise (GRB) at its fifty-sixth session as a consolidated version of the Regulation and aligning the test methods with those introduced into Regulation No. 41.

Meeting Sessions: 159th WP.29 session (12-15 Mar 2013)
Document date: 19 Dec 12
Document status: Adopted text published
Relevant to
UN Regulation No. 9 | Three-Wheeled Cycle Noise
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Download from UNECE: .pdf format
Proposal for Supplement 2 to the 07 series of amendments to Regulation No. 9
Reference Number: WP.29/2016/45

Proposal to clarify that conditioning of a silencing system is necessary only in cases where exhaust gases come into contact with silencer fibrous materials.

Meeting Sessions: 169th WP.29 session (21-24 Jun 2016)
Document date: 04 Apr 16
Document status: Adopted text published
Relevant to
UN Regulation No. 9 | Three-Wheeled Cycle Noise
Adoption Vote
This proposal (WP.29/2016/45) was adopted by the World Forum. Fifteen Contracting Parties out of the 26 applying UN R9 were present for the vote by AC.1. Fifteen voted in favor with zero against and zero abstaining.
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Download from UNECE: .pdf format .docx format
Proposal for Supplement 3 to the 07 series of amendments to Regulation No. 9
Reference Number: WP.29/2017/2

Proposal to clarify the text and align the provisions of UN R9 with other vehicle sound regulations, especially UN R41, pursuant to research conducted by the European Commission.

Meeting Sessions: 171st WP.29 session (14-17 Mar 2017)
Document date: 21 Dec 16
Document status: Adopted text published
Relevant to
UN Regulation No. 9 | Three-Wheeled Cycle Noise
Adoption Vote
This proposal (WP.29/2017/2) was adopted by the World Forum. Fifteen Contracting Parties out of the 27 applying UN R9 were present for the vote by AC.1. Fifteen voted in favor with zero against and zero abstaining.
View full document file for more information
Download from UNECE: .pdf format .docx format
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UN Regulation No. 9
Three-Wheeled Cycle Noise
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