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UN R51: Proposal for a Supplement 11 to the 03 series of amendments
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Reference Number: GRBP/2026/4
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Proposal to introduce a “default mode”, to specify requirements to be applied to the emission of Enhanced Exterior Sound (EES), with the corresponding transitional provisions, and to draw a limit curve to introduce electric vehicles and hybrid electric vehicles that can be propelled without an internal combustion engine operating in the scope of ASEP (Annex 7).
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Meeting Sessions: 83rd GRBP session (10-13
Feb)
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Document date: 27 Nov 25
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Document status: Superseded
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Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions
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Click here to view the full document file
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Documents 2026
3073 documents
24 Oct 2025
RDASEP Data Analysis task force: Agenda for the 3rd (October 2025) session
RDASEP-TFDA-03-01
28 Oct 2025
RD-ASEP data analysis: Commenting Table on Individual Vehicles in RD-ASEP Database
RDASEP-TFDA-03-02
28 Oct 2025
RDASEP Data Analysis task force: Summary of the 3rd (October 2025) session
RDASEP-TFDA-03-03
29 Oct 2025
Tyre Abrasion: Agenda for the 38th (October 2025) session
TA-38-01/Rev.1
29 Oct 2025
Mileage estimation for C1 tyres
TA-38-07
30 Oct 2025
Tyre abrasion: Outcomes of GRPE-82
TA-38-08
4 Nov 2025
RDASEP Data Analysis task force: Agenda for the 4th (November 2025) session
RDASEP-TFDA-04-01
5 Nov 2025
Non-compliance of commercial vehicles with UN Regulations
WP.29-197-10
5 Nov 2025
Results from measuring external noise of trucks (UN R51.02)
WP.29-197-11
10 Nov 2025
RDASEP Data Analysis task force: Summary of the 4th (November 2025) session
RDASEP-TFDA-04-02
10 Nov 2025
R51/R138 Subgroup: Agenda for the 16th (November 2025) session
R51/R138-16-01
10 Nov 2025
UN R51: Comments on draft provisions to amend the regulation
R51/R138-16-02
10 Nov 2025
Worn Tyres informal group: Participants list from the 70th session
WT-70-04
10 Nov 2025
Wet Grip on Worn Tyres: Minutes of the 70th (October 2025) session
WT-70-03
12 Nov 2025
Non-conformities detected on E9 approved trucks
WP.29-197-26
18 Nov 2025
Wet Grip on Worn Tyres: Agenda for the 71st (November 2025) session
WT-71-01
25 Nov 2025
Wet grip on worn tyres: Status of tyre deliveries and validation testing
WT-71-02
25 Nov 2025
Wet Grip on Worn Tyres: Minutes of the 71st (November 2025) session
WT-71-03
26 Nov 2025
UN R51: Proposal for corrections to the 03 series of amendments
GRBP/2026/13
27 Nov 2025
UN R51: Proposal for a Supplement 11 to the 03 series of amendments
GRBP/2026/4
27 Nov 2025
UN R51: Proposal for a Supplement to the 03 series of amendments
GRBP/2026/5
27 Nov 2025
UN R51: Proposal for a Supplement 11 to the 03 series of amendments
GRBP/2026/14
28 Nov 2025
UN R117: Proposal for a Supplement 4 to the 04 series of amendments
GRBP/2026/6
1 Dec 2025
R51/R138 Subgroup: Agenda for the 17th (December 2025) session
R51/R138-17-01
1 Dec 2025
UN R51: Working draft proposal to amend document GRBP/2026/4
R51/R138-17-02
Vehicle and Tyre Noise