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UN R51: Proposal in progress for a 04 Series of amendment

Document GRBP-74-22+MU

21 September 2021

10th UNR51-DG session (21 Sep 2021)

Based on GRBP-74-22 plus measurement uncertainties provisions.

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Previous Documents, Discussions, and Outcomes

10th UNR51-DG session (21 Sep 2021)

74th GRBP session (15-17 Sep 2021)

3. | UN Regulation No. 51 (Noise of M and N categories of vehicles)

8. On behalf of the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP), the expert from Germany reported on their activities (GRBP-74-21) and introduced an updated draft new 04 series of amendments to UN Regulation No. 51 (GRBP-74-22). The Chair invited GRBP experts to study this draft and to provide comments to IWG ASEP.

Reference Number:	TF-AVRS-12-06/Rev.1
Submitted by:	OICA
Meeting Session(s):	12th TF-AVRS session (27 Mar)
Document date:	23 Apr 24
Regarding:	GTR No. 24 Brake Emissions \| Regulation Screening for ADS

Reference Number:	TF-AVRS-13-04
Submitted by:	OICA
Meeting Session(s):	13th TF-AVRS session (23 Apr)
Document date:	23 Apr 24
Regarding:	UN R143 HD Dual Fuel Retrofit Systems

Reference Number:	TF-AVRS-13-03
Submitted by:	OICA
Meeting Session(s):	13th TF-AVRS session (23 Apr)
Document date:	23 Apr 24
Regarding:	UN R115 LPG/CNG Retrofit Systems

Reference Number:	EPPR-64-01
Meeting Session(s):	64th EPPR session (10 Jul)
Document date:	23 Apr 24
Regarding:	GTR No. 2 WMTC \| GTR No. 23 L-vehicle Pollution Control Durability \| L-BEV Range \| L-vehicle EPPR \| Motorcycle Max Power

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