| Draft list of main decisions during the 73rd (January 2021) GRBP session |
| Reference Number: GRBP/28/Rev.1 |
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021) |
| Document date: 29 Jan 21 |
| Relevant to: UN Regulation No. 30 | Pneumatic Tires, UN Regulation No. 41 | Motorcycle Noise, UN Regulation No. 51 | Vehicle Noise Emissions, UN Regulation No. 75 | Motorcycle and Moped Tires, UN Regulation No. 109 | Retreaded Tires for Commercial Vehicles, UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance, UN Regulation No. 124 | Passenger Car and Trailer Wheels, UN Regulation No. 141 | Tyre Pressure Monitoring Systems, UN Regulation No. 165 | Audible Reversing Warning Systems, and UN Regulation No. 164 | Type Approval of Studded Tyres |
| Click here to view the full document file |
| UN R51: Proposal for 04 series of amendments |
| Reference Number: GRBP-73-05 |
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Proposal by experts from IWG ASEP for new series of amendments. |
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021), 4th UNR51-DG session (28 Jan 2021), and 10th RDASEP session (9-10 Dec 2025) |
| Document date: 19 Jan 21 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| ETRTO Tyre Performance Study |
| Reference Number: GRBP-73-11 |
|
Overview of UTAC CERAM testing designed to consider the impact of additional tightening of tyre performance limits on the balance |
| Submitted by: ETRTO |
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021) |
| Document date: 21 Jan 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Status report of the Sound Measurement Uncertainties informal working group |
| Reference Number: GRBP-73-14/Rev.1 |
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021) |
| Document date: 28 Jan 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| General Approach to Estimate Sound Measurement Uncertainties |
| Reference Number: GRBP-73-15 |
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021) |
| Document date: 21 Jan 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Revised terms of reference for the Sound Measurement Uncertainties informal group |
| Reference Number: GRBP-73-16 |
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021) |
| Document date: 21 Jan 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R51: Proposal to amend the 03 series of amendments |
| Reference Number: GRBP-73-17 |
|
Measurement Uncertainties informal group proposal to clarify the text and to amend:
|
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021) |
| Document date: 21 Jan 21 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Study on sound level limits of M- and N-category vehicles |
| Reference Number: GRBP-73-23 |
| Submitted by: EC |
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021) and 2nd TFVS session (26 May 2021) |
| Document date: 27 Jan 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Priorities of the Working Party on Noise and Tyres (GRBP) |
| Reference Number: GRBP-73-24 |
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021) |
| Document date: 27 Jan 21 |
| Relevant to: UN Regulation No. 41 | Motorcycle Noise, UN Regulation No. 51 | Vehicle Noise Emissions, UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance, and UN Regulation No. 165 | Audible Reversing Warning Systems |
| Click here to view the full document file |
| Study on future sound-limit values |
| Reference Number: GRBP-73-25 |
| Submitted by: ACEA |
| Meeting Sessions: 73rd GRBP session (26-29 Jan 2021) |
| Document date: 28 Jan 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
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