| RD-ASEP informal group status report to GRBP |
| Reference Number: GRBP-81-04 |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 25 Jan 25 |
| Relevant to: UN Regulation No. 41 | Motorcycle Noise and UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| RD-ASEP Subgroup on UN-R 138 and UN-R 51: Status report to GRBP |
| Reference Number: GRBP-81-18/Rev.1 |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 15 Feb 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 138 | Quiet Road Transport Vehicles |
| Click here to view the full document file |
| UN R51: Consolidated revision for application to ADS vehicles |
| Reference Number: GRBP-81-20 |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 15 Feb 25 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
| Click here to view the full document file |
| Considerations on the use of existing road traffic noise models for GRBP work |
| Reference Number: GRBP-81-28 |
| Submitted by: HMG |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 18 Feb 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| RD-ASEP Monitoring |
| Reference Number: GRBP-81-32/Rev.1 |
| Submitted by: UTAC |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 19 Feb 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Testing of Electrified Vehicles (EV) under cruising and full acceleration situation |
| Reference Number: GRBP-81-33/Rev.1 |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 21 Feb 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
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| 4. | UN Regulation No. 51 (Noise of M and N Categories of Vehicles) |