UN Regulation No. 51 (Vehicle Noise): Additional sound emission provisions
Documentation
GRB-69-05
UN R51: Proposal for a Supplement to the 03 series of amendments (France and Germany)
UN R51: Proposal for a Supplement to the 03 series of amendments
Proposal to address non-negligible differences in sound performance in cases where COP tests are carried out under conditions that differ from those used for the granting of the type approval. The proposal introduces conditions, procedures, and corrections to be applied to Lurban to account for the difference in test conditions.
GRB/2019/11
UN R51: Amendment to the proposal for Supplement 5 to the 03 series of amendments
UN R51: Amendment to the proposal for Supplement 5 to the 03 series of amendments
Proposal by the Informal Working Group on Additional Sound Emission Provisions (ASEP) to introduce a transitional provision in line with the transitional provisions of Supplement 3. The new transitional provision should be added to the text of draft Supplement 5 to the 03 series of amendments to UN R51 which was adopted by the Working Party on Noise at its sixty-eighth session (GRB/2018/10).