| R51/R138 Subgroup: Agenda for the 10th (June 2025) session |
| Reference Number: R51/R138-10-01 |
| Meeting Sessions: 10th R51/R138 session (6 Jun 2025) |
| Document date: 05 Jun 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 138 | Quiet Road Transport Vehicles |
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| UN R51: Proposal for corrections to the 03 series |
| Reference Number: R51/R138-09-04 |
| Submitted by: EC |
| Meeting Sessions: 9th R51/R138 session (5 Jun 2025) |
| Document date: 05 Jun 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
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| UN R51: Proposal for corrections to the 03 series |
| Reference Number: R51/R138-09-03 |
| Submitted by: EC |
| Meeting Sessions: 9th R51/R138 session (5 Jun 2025) |
| Document date: 05 Jun 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
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| UN R51: Proposal for corrections to the 03 series |
| Reference Number: R51/R138-10-04 |
| Submitted by: EC |
| Meeting Sessions: 10th R51/R138 session (6 Jun 2025) |
| Document date: 05 Jun 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
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| Key points on exterior sound enhancement testing requirements |
| Reference Number: R51/R138-10-02 |
| Meeting Sessions: 10th R51/R138 session (6 Jun 2025) |
| Document date: 05 Jun 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 |
| Key points on Exterior Sound Enhancement Systems/Exterior Sound Generator requirements |
| Reference Number: R51/R138-11-01 |
| Meeting Sessions: 11th R51/R138 session (18 Jun 2025) |
| Document date: 18 Jun 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 138 | Quiet Road Transport Vehicles |
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| Proposal for Exterior Sound Enhancement System (ESES) requirements |
| Reference Number: R51/R138-11-03 |
| Submitted by: OICA |
| Meeting Sessions: 11th R51/R138 session (18 Jun 2025) |
| Document date: 20 Jun 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 138 | Quiet Road Transport Vehicles |
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| Vehicle external sound: Questions to be discussed |
| Reference Number: R51/R138-11-02 |
| Meeting Sessions: 11th R51/R138 session (18 Jun 2025) |
| Document date: 20 Jun 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 |
| R51/R138 Subgroup: Minutes of the 10th (June 2025) session |
| Reference Number: R51/R138-10-03 |
| Meeting Sessions: 10th R51/R138 session (6 Jun 2025) |
| Document date: 20 Jun 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 |
| Background on proposal for setting sound limits |
| Reference Number: R51/R138-12-02 |
| Submitted by: OICA |
| Meeting Sessions: 12th R51/R138 session (8-11 Jul 2025) |
| Document date: 01 Jul 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 |
| R51/R138 Subgroup: Agenda for the 12th (July 2025) session |
| Reference Number: R51/R138-12-01 |
| Meeting Sessions: 12th R51/R138 session (8-11 Jul 2025) |
| Document date: 01 Jul 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 |
| Minutes of drafting group on UN R51 and EV sound provisions (UN R51/UN R138) |
| Reference Number: R51/R138-12-03 |
| Meeting Sessions: 12th R51/R138 session (8-11 Jul 2025) |
| Document date: 08 Jul 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
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| UN R51: Draft proposal for corrections to the 03 series of amendments |
| Reference Number: R51/R138-12-04 |
| Meeting Sessions: 12th R51/R138 session (8-11 Jul 2025) |
| Document date: 10 Jul 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
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| Technical Background dLASEP Term |
| Reference Number: R51/R138-12-05 |
|
This presentation provides information on the term ΔLASEP introduced by OICA in its sound level proposal GRBP/2025/20. |
| Submitted by: HMG |
| Meeting Sessions: 12th R51/R138 session (8-11 Jul 2025) |
| Document date: 28 Jul 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
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| R51/R138 Subgroup: Agenda for the 13th (August 2025) session |
| Reference Number: R51/R138-13-01 |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 01 Aug 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: Proposal for corrections to the 03 series of amendments |
| Reference Number: R51/R138-13-02 |
|
This proposal concerns primarily amendments to Annex 7 of UN Regulation No. 51. The proposed changes are based on the 03 series of amendment to UN Regulation No. 51 up to Supplement 10. |
| Submitted by: OICA |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 01 Aug 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Draft proposal to amend document GRBP/2025/29 |
| Reference Number: R51/R138-13-03 |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 01 Aug 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Proposal for corrections to the 03 series of amendments |
| Reference Number: R51/R138-13-04 |
|
Informal consolidated text for better reading. |
| Submitted by: OICA |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 01 Aug 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Draft guidance on interpretation of the footnote on generated sounds |
| Reference Number: R51/R138-13-05 |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 01 Aug 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Comments on draft Supplement proposal (Annex 7) |
| Reference Number: R51/R138-13-07 |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 01 Aug 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Comments on the draft text for Supplement 11 |
| Reference Number: R51/R138-13-08 |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 01 Aug 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Comments on the draft text for Supplement 11 |
| Reference Number: R51/R138-13-09 |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 04 Aug 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R138: Draft amendment on AVAS sound levels |
| Reference Number: R51/R138-13-06/Rev.1 |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 14 Aug 25 |
| Relevant to: UN Regulation No. 138 | Quiet Road Transport Vehicles |
| Click here to view the full document file |
| R51/R138 Subgroup: Minutes of the 13th (August 2025) session |
| Reference Number: R51/R138-13-11 |
| Meeting Sessions: 13th R51/R138 session (6 Aug 2025) |
| Document date: 15 Aug 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 |
| R51/R138 Subgroup: Minutes of the 12th (July 2025) session |
| Reference Number: R51/R138-12-06 |
| Meeting Sessions: 12th R51/R138 session (8-11 Jul 2025) |
| Document date: 15 Aug 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 |