Document Title UN R51: Proposal for a Supplement 11 to the 03 series of amendments
Reference Number GRBP/2026/4
Date
27 Nov 2025
Summary 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).
Rulemaking Area(s) UN R51 Vehicle Noise
Regulatory Impact
03 series of amendments | Supplement 11
Proposal Status Formal GR review
Meeting(s)
Related Documents
GRBP-82-39 UN R51: Short term steps to deliver a supported EV-ASEP proposal
R51/R138-17-02 UN R51: Working draft proposal to amend document GRBP/2026/4
Downloads
UNECE server .pdf format .docx format
GAR server .pdf format .docx format