4. (b) UN Regulation No. 51: Additional sound emission provisions
linked to UN R51 Vehicle Noise
6. The expert from ISO informed GRB about the activities of his organization to contribute to the GRB work on revising the ASEP provisions (GRB-63-11).
Technical comments on Annex 7 to the 03 series of amendments to Regulation No. 51 "Additional sound emission provisions (ASEP)"
Reference Number: GRB-63-11
Presentation of related ISO activities and prospects for cooperation in the future development of UN R51 ASEP.