This agenda item relates to UN R9 Three-Wheeled Cycle Noise.
World Forum for the Harmonization of Vehicle Regulations | Session 171 | 14-17 Mar 2017
Working Party on Noise | Session 66 | 4-6 Sep 2017

34. The expert from EC proposed amendments to Regulation No. 9 with the aim to introduce ASEP requirements for L4 and L5 category vehicles with the power-to-mass ratio (PMR) of more than 50 W/kg (GRB-66-10). The Chair and the expert from Poland raised questions on referencing Global Technical Regulations (GTR) No. 15. The Chair also pointed out that the proposals should be accompanied with transitional provisions and invited the expert form EC to submit updated proposals to the next GRB session as an official document.

Working Party on Noise | Session 67 | 24-26 Jan 2018

28. The expert from EC presented updated amendments for a new series of amendments to Regulation No. 9 with the aim to introduce ASEP requirements for L4 and L5 category vehicles with the power-to-mass ratio (PMR) of more than 50 W/kg (GRB-67-04). The expert of IMMA was of the view that the industry would need much longer transitional periods for implementing the amendments. The secretariat pointed out that the references to standard ISO 10844 should be updated. GRB invited the expert from EC to update the proposals and submit them as an official document for consideration at the next session.

Documentation
GRB-68-22 | UN R9: Proposal for the 08 series of amendments (EC)
GRB/2018/7 | UN R9: Proposal for a Supplement (EC)