| GRBP: Running order of the 81st (February 2025) session |
| Reference Number: GRBP-81-16/Rev.1 |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 18 Feb 25 |
| 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 |
| Exterior Acoustic Signaling: Work in progress |
| Reference Number: GRBP-81-31 |
| Submitted by: ACEA and OICA |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 18 Feb 25 |
| Relevant to: UN Regulation No. 28 | Audible Warning Devices and Signals, UN Regulation No. 97 | Vehicle Alarm Systems, UN Regulation No. 116 | Protection of Vehicles Against Unauthorized Use, UN Regulation No. 138 | Quiet Road Transport Vehicles, UN Regulation No. 165 | Audible Reversing Warning Systems, UN Regulation No. 162 | Immobilizers and Vehicles Equipped with Immobilizers, UN Regulation No. 163 | Vehicle Alarm Systems, and WP.29 Discussion Topic | Exterior Acoustic Signalling |
| Click here to view the full document file |
| UN R41: Proposal to supersede document GRBP/2025/7 |
| Reference Number: GRBP-81-29 |
| Submitted by: IMMA |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 18 Feb 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 41 | Motorcycle Noise |
| Click here to view the full document file |
| UN R41: Proposal to supersede document GRBP/2025/6 |
| Reference Number: GRBP-81-30 |
| Submitted by: IMMA |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 18 Feb 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 41 | Motorcycle Noise |
| 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 R172: Proposal to supersede document GRBP/2025/17 |
| Reference Number: GRBP-81-27/Rev.2 |
| Submitted by: ETRTO |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 21 Feb 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 172 | Retreaded tyres: Snow performance and/or traction classification |
| 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 |
| Vehicle Sound task force status report to GRBP |
| Reference Number: GRBP-81-34/Rev.1 |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 21 Feb 25 |
| Relevant to: WP.29 Discussion Topic | Vehicle Sound |
| Click here to view the full document file |
| Working Party on Noise & Tyres: Report of the 81st (February 2025) session |
| Reference Number: GRBP/79 |
| Meeting Sessions: 81st GRBP session (18-21 Feb 2025) |
| Document date: 02 Apr 25 |
| Click here to view the full document file |
| Working Party on Noise & Tyres: Agenda for the 82nd (September 2025) session |
| Reference Number: GRBP/2025/18 |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 18 Jun 25 |
| Click here to view the full document file |
| UN R41: Proposal for a Supplement to the 04, 05 and 06 series of amendments |
| Reference Number: GRBP/2025/19 |
|
Proposal to clarify the gear selection procedure pursuant to the amendment to allow deviation from the reference acceleration awot,ref requirement for Conformity of Production tests. |
| Submitted by: IMMA |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 19 Jun 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 41 | Motorcycle Noise |
| Click here to view the full document file |
| UN R138: Proposal for Supplement 2 to the 02 series of amendments |
| Reference Number: GRBP/2025/24 |
|
Proposal from the GRBP task force on Automated Vehicles Regulation Screening to enable application of UN R138 to ADS vehicles. |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) and 17th GRBP-TFAVRS session (20 Aug 2025) |
| Document date: 19 Jun 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 138 | Quiet Road Transport Vehicles and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
| Click here to view the full document file |
| UN R28: Proposal for Supplement 7 |
| Reference Number: GRBP/2025/23 |
|
Proposal from the GRBP task force on Automated Vehicles Regulation Screening to enable application of UN R28 to ADS vehicles. |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) and 17th GRBP-TFAVRS session (20 Aug 2025) |
| Document date: 19 Jun 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 28 | Audible Warning Devices and Signals and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
| Click here to view the full document file |
| UN R141: Proposal for a Supplement 3 to the 01 series of amendments |
| Reference Number: GRBP/2025/21 |
|
Proposal from the GRBP task force on Automated Vehicles Regulation Screening for amendments to enable the application of UN R141 to ADS vehicles. |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) and 17th GRBP-TFAVRS session (20 Aug 2025) |
| Document date: 19 Jun 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 141 | Tyre Pressure Monitoring Systems and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
| Click here to view the full document file |
| UN R51: Proposal for corrections to the 03 series of amendments |
| Reference Number: GRBP/2025/20 |
|
Proposal to replace references to UN GTR 21 by its type-approval equivalent UN R177, provide transitional provisions pursuant to amendments introduced in Supplements 10 and 11, and clarify calibration provisions and procedure for system check (cf: ISO 362). |
| Submitted by: OICA |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 19 Jun 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R165: Proposal for a Supplement 1 |
| Reference Number: GRBP/2025/22 |
|
Proposal from the GRBP task force on Automated Vehicles Regulation Screening to amend UN R165 to enable application to ADS vehicles. |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) and 17th GRBP-TFAVRS session (20 Aug 2025) |
| Document date: 19 Jun 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 165 | Audible Reversing Warning Systems and WP.29 Regulatory Project | Review of Regulations for Applicability to ADS Vehicles |
| 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 R51: Proposal for a Supplement to the 03 series of amendments |
| Reference Number: GRBP/2025/29 |
|
Proposal to cover all types of electric vehicles (xEVs) in the provisions of ASEP (Annex 7) in UN Regulation No. 51. |
| Submitted by: OICA |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 20 Jun 25 |
| Document status: Formal GR review |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Proposal for a Supplement to the 03 series of amendments |
| Reference Number: GRBP/2025/25 |
|
Proposal from the GRBP task force on Automated Vehicles Regulation Screening to enable application of UN R51 to ADS vehicles. |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) and 17th GRBP-TFAVRS session (20 Aug 2025) |
| Document date: 20 Jun 25 |
| Document status: Superseded |
| 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 |
| 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 UN Regulation No. 186 | Tyre abrasion |
| Click here to view the full document file |
| Tyre abrasion: Proposal for a new UN Regulation |
| Reference Number: GRBP/2025/27 |
|
Proposal for a new UN Regulation for the approval of new pneumatic tyres of class C1 that conform to UN R117 with regard to their abrasion performance. |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 23 Jun 25 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 186 | Tyre abrasion |
| Click here to view the full document file |
| UN R28: Soft horns |
| Reference Number: GRBP-82-05 |
|
A proposal to meet the objective to reduce noise pollution (particularly in towns) and to be able to warn pedestrians, cyclists and others of the vehicle’s arrival with the least possible discomfort. |
| Submitted by: France |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 26 Aug 25 |
| Relevant to: UN Regulation No. 28 | Audible Warning Devices and Signals |
| Click here to view the full document file |
| REESS: Audible warning in the event of failure in REESS |
| Reference Number: GRBP-82-04 |
| Submitted by: France |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 26 Aug 25 |
| Relevant to: WP.29 Discussion Topic | Electric Vehicle Environmental Performance |
| Click here to view the full document file |
| IWG RD ASEP: Status Report |
| Reference Number: GRBP-82-03/Rev.1 |
| Meeting Sessions: 82nd GRBP session (3-5 Sep 2025) |
| Document date: 02 Sep 25 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |