1. Adoption of the agenda

In accordance with Chapter III, Rule 7 of the Rules of Procedure (ECE/TRANS/WP.29/690/Rev.2) of the World Forum for Harmonization of Vehicle Regulations (WP.29), the first item on the provisional agenda is its adoption.

GRBP/2022/10 | GRBP: Annotated provisional agenda for the 76th (September 2022) session
GRBP/2022/10 | GRBP: Annotated provisional agenda for the 76th (September 2022) session
GRBP-76-20 | Running order of the 76th hybrid session
GRBP-76-28/Rev.1 | Detailed running order and tentative timetable
2. UN Regulation No. 51 (Noise of M and N categories of vehicles)

GRBP will be informed about the activities of the Informal Working Group on Measurement Uncertainties (IWG MU) and will consider a proposal that was prepared by IWG MU with the aim to reduce variability.

GRBP-76-08 | Sound Measurement Uncertainties informal group status report to GRBP
GRBP-76-09 | UN R51: Proposal to amend document GRBP/2022/16 Proposal from the informal group on sound Measurement Uncertainties to amend their previous formal proposal.
GRBP/2022/16 | UN R51: Proposal for Supplement 8 to the 03 series of amendments Proposal from the Measurement Uncertainties informal group to introduce measures to reduce variability across assessments.

GRBP will recall the IWG MU general approach how to handle measurement uncertainties in UN Regulations and will be informed about WP.29 considerations at its June 2022 session on this matter.

GRBP-76-11 | Proposal to amend the Reference Document on Sound Measurement Uncertainties Proposal for the Measurement Uncertainties informal group to amend their previous formal submission (GRBP/2022/9/Rev.1).
GRBP/2022/9/Rev.1 | A general approach how to handle sound measurement uncertainty Proposal for a reference document.

GRBP will address a proposal prepared by the experts from the International Organization for Standardization (ISO) that brings the latest ISO 10844 standard test surface into the UN Regulation.

GRBP/2022/13 | UN R51: Proposal for Supplement 8 to the 03 series of amendments Proposal to bring the latest ISO 10844 standard test surface into the Regulation.
GRBP/2022/13 | UN R51: Proposal for Supplement 8 to the 03 series of amendments Proposal to bring the latest ISO 10844 standard test surface into the Regulation.
GRBP/2022/16 | UN R51: Proposal for Supplement 8 to the 03 series of amendments Proposal from the Measurement Uncertainties informal group to introduce measures to reduce variability across assessments.
GRBP/2022/9/Rev.1 | A general approach how to handle sound measurement uncertainty Proposal for a reference document.
GRBP-76-08 | Sound Measurement Uncertainties informal group status report to GRBP
GRBP-76-09 | UN R51: Proposal to amend document GRBP/2022/16 Proposal from the informal group on sound Measurement Uncertainties to amend their previous formal proposal.
GRBP-76-10 | Questions on documents GRBP/2022/4 and GRBP-75-37 (Monitoring phase of RD-ASEP from 1 July 2023)
GRBP-76-11 | Proposal to amend the Reference Document on Sound Measurement Uncertainties Proposal for the Measurement Uncertainties informal group to amend their previous formal submission (GRBP/2022/9/Rev.1).
GRBP-76-14 | UN R51: Comparison of EMISIA and ATEEL study on sound limit values
GRBP-76-15/Rev.1 | UN R51: TF Vehicles' Sound Status Report Previous name of this TF was TF-SL for Sound Limits
GRBP-76-29 | UN R51: Research on Measurement Methods for LDV & HDV in Multiple Driving Mode Conditions CATC Data Study and Measurement Methods Research
3. UN Regulation No. 138 (Quiet road-transport vehicles)

GRBP will address a proposal prepared by the experts from ISO that brings the latest ISO 10844 standard test surface into the UN Regulation.

GRBP/2022/15 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal to bring the latest ISO 10844 standard test surface into the Regulation.

GRBP may expect a progress report of the Informal Working Group on Quiet Road Transport Vehicles for the Global Technical Regulation (IWG QRTV GTR).

GRBP will also be informed about the activities of the newly created Task Force on Quiet Road Transport Vehicles (TF QRTV).

GRBP/2022/15 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal to bring the latest ISO 10844 standard test surface into the Regulation.
GRBP-76-16 | UN R138: TF Quiet Road Transport Vehicles (QRTV) Status Report
4. Tyres
4. (a) UN Regulation No. 30 (Tyres for passenger cars and their trailers)

Based on a new proposal by the expert from the European Tyre and Rim Technical Organisation (ETRTO), GRBP will continue consideration of a new definition for “radial tyre”. The ETRTO proposal also addresses other issues, such as the definition of snow tyres, requirements for special use tyres of class C1, addition of an optional prefix for extra load tyres, a clarification on the description of the load/speed test for run flat/extended mobility tyres and editorial corrections.

GRBP-76-04 | UN R30: Study on the proposal for a new radial tyre definition
GRBP/2022/21 | UN R30: Proposal for a Supplement to the 02 series of amendments Proposal to address the definition of the radial structure (as a continuation to ECE/TRANS/WP.29/GRBP/2021/9), the definition of snow tyres, the requirements for special use tyres of class C1, the addition of an optional prefix for extra load tyres, a clarification of the description of the load/speed test for run flat tyres and extended mobility tyres (EMT) and editorial corrections.
GRBP/2022/21 | UN R30: Proposal for a Supplement to the 02 series of amendments Proposal to address the definition of the radial structure (as a continuation to ECE/TRANS/WP.29/GRBP/2021/9), the definition of snow tyres, the requirements for special use tyres of class C1, the addition of an optional prefix for extra load tyres, a clarification of the description of the load/speed test for run flat tyres and extended mobility tyres (EMT) and editorial corrections.
GRBP-76-04 | UN R30: Study on the proposal for a new radial tyre definition
4. (b) UN Regulation No. 109 (Retreaded tyres for commercial vehicles and their trailers)

At the previous session, the experts from France, the Netherlands and the Bureau International Permanent des Associations de Vendeurs et Rechapeurs de Pneumatiques (BIPAVER) proposed a new scheme of approval for retreaded snow tyres for use in severe snow conditions in accordance with UN Regulation No. 109 (GRBP-75-14). Experts were invited to provide comments to the authors (ECE/TRANS/WP.29/GRBP/73, para. 34). GRBP will receive an update on this matter.

GRBP-76-03 | UN R109: Type approval of 3PMSF material Presentation of outcomes from a GRBP group of interested experts formed to consider contents of documents GRBP-73-21, GRBP/2021/16, and GRBP-75-14.
GRBP-75-14 | UN R109: Proposal for amendments to the 01 series of amendments Propose a new scheme of approval for Retreaded snow tyres for use in severe snow conditions
GRBP-76-03 | UN R109: Type approval of 3PMSF material Presentation of outcomes from a GRBP group of interested experts formed to consider contents of documents GRBP-73-21, GRBP/2021/16, and GRBP-75-14.
4. (c) UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

GRBP is invited to consider a proposal for the 04 series of amendments to UN Regulation No. 117 submitted by the experts from the European Commission.

GRBP-76-02 | UN R117: Proposal to amend document GRBP/2022/23 Proposal from the Worn Tyres working group to amend their earlier formal submission.
GRBP/2022/12 | UN R117: Proposal for the 04 series of amendments Proposal to revise the limits for rolling resistance and wet grip, address tyres for vintage vehicles, and revise the definition for special-use C1 tyres.

GRBP will address a proposal prepared by the experts from ISO that brings the latest ISO 10844 standard test surface into the UN Regulation.

GRBP/2022/14 | UN R117: Proposal for Supplement 14 to the 02 series of amendments Proposal to bring the latest ISO 10844 standard test surface into the Regulation.

GRBP will be briefed on the activities of the IWG on Wet Grip Performance of Tyres in Worn State (IWG WGWT) and will consider their proposals for the moulded standard reference test tyre and wet grip of C2, C3, and some clusters of C1 tyres in worn state.

GRBP-76-05 | UN R117: Proposal to amend document GRBP/2022/22 Proposal from the Worn Tyres working group to amend its previous formal proposal.
GRBP-76-06 | Worn Tyres working group status report to GRBP
GRBP/2022/22 | UN R117: Proposal for a Supplement to the 03 series of amendments Proposal from the Worn Tyres working group to improve precision of the test procedures for measuring the wet adhesion of tyres in a worn state by using a moulded SRTT16 reference tyre (instead of a buffed tyre), to introduce new transitional provisions related to this change, to extend corrections already made to thee 02 series to the 03 series and make additional editorial corrections, and to define the range for tyre inflation vis-à-vis rim size to reduce uncertainties in measuring tread depth.
GRBP/2022/23 | UN R117: Proposal for a 04 series of amendments Proposal from the Worn Tyres working group to set the wet grip index threshold at 0.80 for class C1 tyres with a nominal aspect ratio equal to or less than 40, a section width equal to or higher than 235 mm and suitable for speeds equal to or greater than 300 km/h and for class C1 all terrain and special use tyres (see GRBP-75-27, slide 6). The proposal also introduces the k<sub>worn</sub> factor in a new para. 3 in Annex 9 to address wet grip of C2 and C3 tyres in a worn state (see GRBP-75-26-Rev.1 for concept).

GRBP will consider an amendment proposal concerning a “traction tyre” tabled by the expert from ETRTO.

GRBP/2022/17 | UN R117: Proposal for the 04 series of amendments Proposal to introduce a new definition of traction elements to characterize traction tyres.

GRBP is invited to address proposals submitted by the experts from ETRTO which aim to introduce provisions for type approval of special use tyres that fulfil the requirements for snow performance.

GRBP/2022/18 | UN R117: Proposal for a Supplement to the 03 series of amendments Proposal to introduce provisions to allow type approval of special use tyres that fulfil the requirements for snow performance as laid out in Annex 7. The respective marking related to the “Alpine” symbol has been considered for tyres complying with these requirements.
GRBP/2022/19 | UN R117: Proposal for a Supplement to the 02 series of amendments Proposal to introduce provisions to allow the type approval of special use tyres that fulfil the requirements for snow performance as laid out in Annex 7. The respective marking related to the “Alpine” symbol has been considered for those tyres complying with these requirements.

GRBP may also wish to consider corrections of editorial errors proposed by the expert from ETRTO.

GRBP/2022/20 | UN R117: Proposal for a Supplement to the 02 series of amendments Proposal to correct editorial mistakes in document GRBP/2021/17 that were not corrected by informal document GRBP74-31-Rev.1.

At its previous session, GRBP noted that the experts from France continued consultations on monitoring the machine deviation for rolling resistance measurements (ECE/TRANS/WP.29/GRBP/73, paragraph 24 and GRBP-74-04). GRBP may wish to be informed on the outcome of this activity.

GRBP-74-04 | UN R117: Proposal for amendments to the 02 series of amendments Proposal to add requirement on the monitoring of the machine deviation for rolling resistance measurement.
GRBP/2022/22 | UN R117: Proposal for a Supplement to the 03 series of amendments Proposal from the Worn Tyres working group to improve precision of the test procedures for measuring the wet adhesion of tyres in a worn state by using a moulded SRTT16 reference tyre (instead of a buffed tyre), to introduce new transitional provisions related to this change, to extend corrections already made to thee 02 series to the 03 series and make additional editorial corrections, and to define the range for tyre inflation vis-à-vis rim size to reduce uncertainties in measuring tread depth.
GRBP/2022/23 | UN R117: Proposal for a 04 series of amendments Proposal from the Worn Tyres working group to set the wet grip index threshold at 0.80 for class C1 tyres with a nominal aspect ratio equal to or less than 40, a section width equal to or higher than 235 mm and suitable for speeds equal to or greater than 300 km/h and for class C1 all terrain and special use tyres (see GRBP-75-27, slide 6). The proposal also introduces the k<sub>worn</sub> factor in a new para. 3 in Annex 9 to address wet grip of C2 and C3 tyres in a worn state (see GRBP-75-26-Rev.1 for concept).
GRBP/2022/12 | UN R117: Proposal for the 04 series of amendments Proposal to revise the limits for rolling resistance and wet grip, address tyres for vintage vehicles, and revise the definition for special-use C1 tyres.
GRBP/2022/14 | UN R117: Proposal for Supplement 14 to the 02 series of amendments Proposal to bring the latest ISO 10844 standard test surface into the Regulation.
GRBP/2022/17 | UN R117: Proposal for the 04 series of amendments Proposal to introduce a new definition of traction elements to characterize traction tyres.
GRBP/2022/20 | UN R117: Proposal for a Supplement to the 02 series of amendments Proposal to correct editorial mistakes in document GRBP/2021/17 that were not corrected by informal document GRBP74-31-Rev.1.
GRBP/2022/18 | UN R117: Proposal for a Supplement to the 03 series of amendments Proposal to introduce provisions to allow type approval of special use tyres that fulfil the requirements for snow performance as laid out in Annex 7. The respective marking related to the “Alpine” symbol has been considered for tyres complying with these requirements.
GRBP/2022/19 | UN R117: Proposal for a Supplement to the 02 series of amendments Proposal to introduce provisions to allow the type approval of special use tyres that fulfil the requirements for snow performance as laid out in Annex 7. The respective marking related to the “Alpine” symbol has been considered for those tyres complying with these requirements.
GRBP-76-02 | UN R117: Proposal to amend document GRBP/2022/23 Proposal from the Worn Tyres working group to amend their earlier formal submission.
GRBP-76-05 | UN R117: Proposal to amend document GRBP/2022/22 Proposal from the Worn Tyres working group to amend its previous formal proposal.
GRBP-76-06 | Worn Tyres working group status report to GRBP
GRBP-76-17 | UN R117: Proposal for amendments to the 04 series of amendments Proposal introduces a new definition for taxi tyres and establishes different threshold from other tyres.
GRBP-76-18 | UN R117: Presentation on the introduction of new class C1 Taxi tyre
GRBP-76-21 | UN R117: Proposal to amend the proposal for Supplement 2 to the 03 Series of amendments Proposals for editorial corrections to the provisions for type approval of special use tyres that fulfil the requirements for snow performance
GRBP-76-22 | UN R117: Proposal to amend the Supplement to the 02 series of amendments Proposal for editorial corrections
GRBP-76-23 | UN R117: Proposal for amendments to the proposal for 04 series of amendments Proposal introduces provisions to allow the type approval of special use tyres that fulfil the requirements for snow performance as laid out in Annex 7. The respective marking related to the “Alpine” symbol has been considered for those tyres complying with these requirements.
GRBP-76-24/Rev.1 | UN R117: Proposal for amendment to proposal for the 04 series of amendments Proposal introduces provisions to allow the type approval of special use tyres that fulfil the requirements for snow performance as laid out in Annex 7. The respective marking related to the “Alpine” symbol has been considered for those tyres complying with these requirements
GRBP-76-31 | UN R117: Proposal to amend the proposal for 04 series of amendments Re-introduces the definition of traction tyre as this can be still used between the entry into force date of the 04 series of amendments and 7 July 2024 .
GRBP-76-32 | UN R117: Proposal to amend the proposal for the 04 series of amendments Editorial corrections and amends the transitional provisions
GRBP-76-33/Rev 1 | UN R117: Proposal to amend proposal for 04 series of amendments Proposes the amendment to the transitional provisions aligning with other proposals
GRBP-76-34 | UN R117: Proposal for amendment to proposal for 03 series of amendments Proposal to update the reference to the latest ISO 10844 standard
GRBP-76-38 | UN R117: Overview of current amendment proposals
4. (d) UN Regulation No. [164] (Studded tyres)

GRBP will be briefed on the activities of the Task Force on Studded Tyres (TF ST) and will consider a proposal prepared by TF ST that includes prescriptions for ice grip performance of tyres of class C1 into UN Regulation No. 164.

GRBP/2022/11 | UN R164: Proposal for Supplement 1 Proposal from the Studded Tyres task force to introduce provisions for C1 tyre ice-grip performance.
GRBP/2022/11 | UN R164: Proposal for Supplement 1 Proposal from the Studded Tyres task force to introduce provisions for C1 tyre ice-grip performance.
GRBP-76-13 | UN R164: TF Studded Tyres status report
5. Draft UN Regulation on reverse warning sound

GRBP will be informed about the WP.29 considerations, at its June 2022 session, of the draft new UN Regulation on reverse warning sound.

WP.29/2022/88 | Proposal for a new UN Regulation on Reverse Warning systems Proposal from GRBP for a new UN Regulation concerning the type approval of audible reverse warning devices and of motor vehicles with regard to their audible reverse warning signals.
GRBP/2022/24 | UN R165: Proposal for Supplement 1 Proposal to amend the provisions for a pause function for reversing warning systems with the aim to comply with the national environmental (noise) restrictions.
GRBP-76-07/Rev.1 | Reverse Warning Regulation – UK Proposal
6. Exchange of information on national and international requirements on noise levels

GRBP will continue the exchange of views on developing national or regional legislation and international requirements on noise levels.

GRBP-76-25 | Project STEER : Improving the EU Tyre Noise Label, an overview of the key findings Exchange of information on national and international requirements on noise levels
GRBP-76-26 | Uncertainty on the EU Tyre (Noise) label Exchange of information on national and international requirements on noise levels
7. Proposals for amendments to the Consolidated Resolution on the Construction of Vehicles

GRBP will consider draft amendments, if any, to the Consolidated Resolution on the Construction of Vehicles (R.E.3).

8. Development of the International Whole Vehicle Type Approval system

GRBP will be informed about progress in implementing the International Whole Vehicle Type Approval (IWVTA) (UN Regulation No. 0).

9. Highlights of the recent sessions of the World Forum for Harmonization of Vehicle Regulations

GRBP will be briefed by the secretariat about the highlights of the recent sessions of WP.29 on GRBP and common issues.

GRBP-76-19 | General information and WP 29 highlights
10. Exchange of views on the future work of the Working Party on Noise and Tyres

GRBP may wish to review the list of priorities for the future work.

GRBP-76-36 | Updated list of GRBP priorities
11. Other business

At its previous session, GRBP took note of a proposal for extension of the Electronic Database for the Exchange of Type Approval Documentation (DETA), with the aim to improve the use of the “Unique Identifier” (UI) in UN Regulations (GRBP-74-18) and decided to come back to the issue at this session.

GRBP will consider any other subjects, as appropriate.

GRBP-74-18 | (DETA): Proposal to improve the use of the Unique Identifier (UI)
GRBP-76-12 | DETA: Proposal to improve the use of the Unique Identifier for UN Regulations
GRBP-76-27 | Campaign on noise emissions 2021 Initiated by the Federal Ministry for Digital and Transport (BMDV), the Federal Motor Transport Authority (KBA) tested various passenger cars (M1) and motorcycles (L3e) with regard to their noise emissions in 2021
GRBP-76-30 | 1958 Agreement : Unique Identifier and UN Regulations The UI feature is being developed. The IWG on DETA is consulting the subsidiary bodies of WP.29 concerning the proposed “summary documents” aimed at storing information associated with a Unique Identifier.
GRBP-76-37 | TF TA (Tyre Abrasion): status report
12. Provisional agenda for the next session

GRBP is invited to provide guidance on the provisional agenda for the next session provisionally scheduled to be held in Geneva from 7 to 10 February 2023.

13. Election of officers

In compliance with Rule 37 of the WP.29 Rules of Procedure (ECE/TRANS/WP.29/690/Rev.2), GRBP will elect a Chair and a Vice-Chair for the sessions scheduled for the year 2023. According to the Rules of Procedure of the Inland Transport Committee, countries are invited to submit their nominations to the secretariat not later than on 26 August 2022.