Proposal to allow vehicles to be run at idle during the test procedures and to change the minimum sound level requirement for vehicles of category M and N and motorcycles of a power greater than 7 kW from 93 dB to 87 dB.
| Reference Number: | WP.29/2015/60 |
| Meeting Session(s): | 166th WP.29 session (23-26 Jun 2015) |
| Document date: | 10 Apr 15 |
| Document status: | Adopted text published |
| Regarding: | |
| View full document file for more information | |
Proposal to update and clarify the regulation. The proposal refines definitions, removes the “AWD” abbeviation for “audible warning device” to avoid confusion with its more common use for “all wheel drive”, modifies some administrative communications, and proposes three-direction acoustic measurements. The proposal also aims to structure the regulation to enable its application to additional sound warning devices not presently regulated at the international level, excluding acoustic vehicle alerting systems (AVAS) which will be subject to a separate regulation on minimum vehicle sound levels.
| Reference Number: | WP.29/2017/3 |
| Meeting Session(s): | 171st WP.29 session (14-17 Mar 2017) |
| Document date: | 22 Dec 16 |
| Document status: | Adopted text published |
| Regarding: | |
| Adoption Vote | |
| This proposal (WP.29/2017/3) was adopted by the World Forum. Thirty-five Contracting Parties out of the 45 applying UN R28 were present for the vote by AC.1. Thirty-five voted in favor with zero against and zero abstaining. | |
| View full document file for more information | |
Proposal to define “electronic” as a “principle of operation by electric or electro-magnetic force with amplifier and speaker or resonator”.
| Reference Number: | WP.29/2020/3 |
| Meeting Session(s): | 180th WP.29 session (9-12 Mar 2020) |
| Document date: | 19 Dec 19 |
| Document status: | Adopted text published |
| Regarding: | |
| Adoption Vote | |
| This proposal (WP.29/2020/3) was adopted by the World Forum. Thirty-seven Contracting Parties out of the 48 applying UN R28 were present for the vote by AC.1. Thirty-seven voted in favor with zero against and zero abstaining. | |
| View full document file for more information | |
Proposal for amendments to enable the application of UN R28 to ADS vehicles.
| Reference Number: | GRBP/2025/2 |
| Submitted by: | Australia |
| Meeting Session(s): | 81st GRBP session (18-21 Feb) |
| Document date: | 29 Nov 24 |
| Document status: | Formal GR review |
| Regarding: |