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UN R51: IWG Measurement Uncertainty status report
Document GRBP-75-05
25 January 2022
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Previous Documents, Discussions, and Outcomes
2. | UN Regulation No. 51 (Noise of M and N categories of vehicles).

3. GRBP was informed about the activities of the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP) (GRBP-75-38), of the Informal Working Group on Measurement Uncertainties (IWG MU) (GRBP-75-05) and of the Task Force on Vehicles’ Sound (TF VS) (GRBP-75-32).

Relates to UN R51 | UN R117 |