Real-World sound emission testing is becoming a reality for Motorcycles

The United Nations World Forum for Harmonization of Vehicle Regulations (WP.29) has adopted in March 2021 an important amendment to the UN Regulation No. 41 concerning the approval of motorcycles with regards to vehicle noise emissions in order to introduce broader and more stringent testing. Coming on top of the regular pass-by noise test, the revised Additional Sound Emission Provisions (ASEP) reinforce the criteria for type-approval of motorcycles.