| Measurement Uncertainties when testing to Noise and Tyre Regulations |
| Reference Number: GRBP-82-18 |
|
Proposal to replace ECE/TRANS/WP.29/GRBP/2024/8, applies also to UN R117 |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 31 Aug 25 |
| 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 |
| Measurement Uncertainties: Background presentation on testing to Noise and Tyre regulations |
| Reference Number: GRBP-82-19 |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 31 Aug 25 |
| 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 R117: Tyre Abrasion; Position on open points for C1 limit settings |
| Reference Number: GRBP-82-24 |
| Submitted by: ETRTO |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 01 Sep 25 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Tyre Abrasion, Position of the European Tyre Industry on Abrasion Limits Setting in view of Euro 7 Regulation implementation |
| Reference Number: GRBP-82-25 |
| Submitted by: ETRTO |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 01 Sep 25 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance and WP.29 Regulatory Project | Tyre abrasion test method development |
| Click here to view the full document file |
| UN R117: Proposal for a Supplement 4 to the 04 Series of amendments |
| Reference Number: GRBP-82-26 |
|
Addresses a real-life situation that is not considered by current ice grip test conditions: the wet ice (or black ice) conditions. |
| Submitted by: ETRTO |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 02 Sep 25 |
| Document status: Next GR session |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Proposal for Supplement 4 to the 04 Series of amendments |
| Reference Number: GRBP-82-27 |
|
Proposal for new provisions for the track characterization with additional new text and re-introduces deleted text |
| Submitted by: ETRTO |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 02 Sep 25 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: GOIE on Tyre Noise Level Alignment (TNLA); Status Report |
| Reference Number: GRBP-82-28 |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 03 Sep 25 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| IWG for Wet Grip on Worn Tyres (WGWT): Status Report |
| Reference Number: GRBP-82-31 |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 02 Sep 25 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| IWG on Wet Grip Performance for Tyres in a Worn State (WGWT): Revised Terms of Reference |
| Reference Number: GRBP-82-32 |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 02 Sep 25 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Proposal for a Supplement 4 to the 04 series of amendments |
| Reference Number: GRBP/2025/26 |
|
Proposal to clarify tyre abrasion provisions, including to add an ice temperature range of -5°C to -2°C to the test conditions for ice grip tyres. |
| Submitted by: Japan |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 20 Jun 25 |
| Document status: Next GR session |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Proposal for a Supplement 4 to the 04 series of amendments |
| Reference Number: GRBP/2025/28 |
|
Proposal from the GRBP task force on Tyre Abrasion to delete provisions from UN R117 that are covered by the proposal for a new UN Regulation on tyre abrasion. |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 23 Jun 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance and WP.29 Regulatory Project | Tyre abrasion test method development |
| Click here to view the full document file |
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| 5. (a) | UN Regulation No. 117 (Tyre Rolling Resistance, Rolling Noise and Wet Grip) |