UN R9: Proposal for a Supplement to the 08 series of amendments
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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.

Reference Number: GRBP/2019/22
Origin: IMMA
Date: 20 June 2019
Proposal Status: Superseded
Related Documents:
GRB-69-14 | UN R9: Proposal for amendments to the draft 08 series of amendments
WP.29/2020/2 | UN R9: Proposal for Supplement 1 to the 08 series of amendment
Discussion(s):
Working Party on Noise and Tyres | Session 70 | 11-13 Sep 2019

3. The expert from IMMA presented draft amendments that introduce a mandatory test for Additional Sound Emission Provisions (ASEP) and correct an inconsistency in the ASEP exemption conditions for vehicles with variable gear ratios or automatic transmission with non-lockable gear ratios (ECE/TRANS/WP.29/GRBP/2019/22 and ECE/TRANS/WP.29/GRBP/2019/23). GRBP adopted both proposals and requested the secretariat to submit them to WP.29 and to the Administrative Committee (AC.1) for consideration and vote at their March 2020 sessions as a draft Supplement 1 to the 08 series of amendments to UN Regulation No. 9.