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UN Regulation No. 138
Quiet Road Transport Vehicles

Uniform provisions concerning the approval of Quiet Road Transport Vehicles with regard to their reduced audibility (QRTV)

This Regulation requires an “audible vehicle alerting system” (AVAS) to reduce the risk of collisions with vulnerable road users unable to aurally detect the presence of electrified vehicles.

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Revisions and Amendments
Series of Amendments and Supplements

Application of the Regulation

Contracting Parties applying UN R138

Related News and Information

5 Dec 2017 5 Dec 2017 | Hearing hybrid and electric vehicles while quieting noise pollution Formal title to be determined. QRTV-GTR Quiet Road Transport Vehicles WP.29 Regulatory Project Quiet Road Transport Vehicles and Uniform provisions concerning the approval of Quiet Road Transport Vehicles with regard to their reduced audibility (QRTV) This Regulation requires an "audible vehicle alerting system" (AVAS) to reduce the risk of collisions with vulnerable road users unable to aurally detect the presence of electrified vehicles. Quiet Road Transport Vehicles Quiet Road Transport Vehicles UN Regulation No. 138 UN R138
2 Mar 2017 2 Mar 2017 | What Will Electric Cars Sound Like? Formal title to be determined. QRTV-GTR Quiet Road Transport Vehicles WP.29 Regulatory Project Quiet Road Transport Vehicles and Uniform provisions concerning the approval of Quiet Road Transport Vehicles with regard to their reduced audibility (QRTV) This Regulation requires an "audible vehicle alerting system" (AVAS) to reduce the risk of collisions with vulnerable road users unable to aurally detect the presence of electrified vehicles. Quiet Road Transport Vehicles Quiet Road Transport Vehicles UN Regulation No. 138 UN R138
13 Oct 2016 13 Oct 2016 | Entry into force of UN Regulation No. 138 on Quiet Road Transport Vehicles Uniform provisions concerning the approval of Quiet Road Transport Vehicles with regard to their reduced audibility (QRTV) This Regulation requires an "audible vehicle alerting system" (AVAS) to reduce the risk of collisions with vulnerable road users unable to aurally detect the presence of electrified vehicles. Quiet Road Transport Vehicles Quiet Road Transport Vehicles UN Regulation No. 138 UN R138
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Development of the Regulation

Pending Changes to UN R138

Latest Documents

12 Nov 2019
IWVTA informal group: Report to WP.29 | WP.29-179-08
5 Sep 2019
UN R138 and reversing warning requirements | TFRWS-08-02/Rev.1
25 Jul 2019
UN R138: Draft amendment to the 01 series of amendments | ASEP II-12-14
See all 102 related documents

Latest Meeting Discussions

Working Party on Noise and Tyres | Session 71 | 28-31 Jan 2020
Working Party on Noise and Tyres | Session 70 | 11-13 Sep 2019
World Forum for the Harmonization of Vehicle Regulations | Session 178 | 24-28 Jun 2019
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