1. The Working Party on Noise and Tyres (GRBP) held its seventy-fourth session from 15 to 17 September 2021 in Geneva. The meeting was chaired by Mr. S. Ficheux (France). Experts from the following countries participated in the work following Rule 1(a) of the Rules of Procedure of the World Forum for Harmonization of Vehicle Regulations (WP.29) (TRANS/WP.29/690/Rev.2): Canada, China, Czech Republic, Finland, France, Germany, Hungary, India, Italy, Japan, Netherlands, Norway, Republic of Korea, Russian Federation, South Africa, Spain, Sweden, Switzerland, United Kingdom of Great Britain and Northern Ireland and United States of America. An expert from the European Commission (EC) participated. Experts from the following non-governmental organizations also participated: Bureau International Permanent des Associations de Vendeurs et Rechapeurs de pneumatiques (BIPAVER), International Motor Vehicle Inspection Committee (CITA), European Association of Automotive Suppliers (CLEPA), European Garage Equipment Association (EGEA), European Tyre and Rim Technical Organization (ETRTO), Federation of European Motorcyclists’ Associations (FEMA), Motorcycle Manufacturers Association (IMMA), International Organization for Standardization (ISO), Imported Tyre Manufacturers Association (ITMA), International Organization of Motor Vehicle Manufacturers (OICA), Society of Automotive Engineers (SAE).

2. GRBP considered and adopted the agenda (ECE/TRANS/WP.29/GRBP/2021/8, as amended by GRBP-74-01-Rev.1). GRBP noted the running order proposed by the Chair (GRBP-74-10-Rev.1) as well as the virtual meeting guidelines (GRBP-74-19). The list of informal documents is contained in Annex I. The list of GRBP informal groups is reproduced in Annex VII to the session report.

GRBP-74-01/Rev.1 | GRB-74: Updated provisional agenda

GRBP-74-10/Rev 1 | Updated running order

GRBP-74-19 | (Secretariat) Webex meeting participation guidelines

GRBP/2021/8 | 74th (September 2021) GRBP session: Annotated provisional agenda

3. The expert from IMMA proposed to align the 08 series of amendments to UN Regulation No. 9 with standard ISO10844:2014 as well as to streamline the transitional provisions (ECE/TRANS/WP.29/GRBP/2021/23). GRBP adopted this proposal, as amended by GRBP-74-43, and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and the Administrative Committee (AC.1) as draft Supplement 2 to the 08 series of amendments to UN Regulation No. 9.

GRBP-74-43 | UN R9: Proposal for amendment to 08 series of amendments Proposal to amend ECE/TRANS/WP.29/GRBP/2021/23

GRBP/2021/23 | UN R9: Proposal for amendments to the 08 series of amendments Proposal to align the 08 series of amendments to UN Regulation No. 9 with standard 10844:2014 of the International Organization of Standardization (ISO).

4. The expert from Norway, in his capacity of Chair of the Informal Working Group on Measurement Uncertainties (IWG MU), reported on the progress of IWG MU (GRBP-74-20) and proposed to update its Terms of Reference (GRBP-74-12). GRBP adopted the revised Terms of Reference, as laid down in Annex II.

GRBP-74-12 | IWG MU (Measurement Uncertainties): Terms of Reference This revised document intended to present to amend 117 the timetable for the work related to Regulation No. 117 has been shifted with approximately 12 months for this part. The aim of the IWG is to propose harmonized measures for evaluating systematic errors and random errors to improve the test procedures to reduce measurement uncertainties

GRBP-74-20 | (Measurement Uncertainty): IWG status report

5. The expert from IWG MU presented a proposal which reduces measurement uncertainties for the ambient conditions, vehicle selections and preparations (ECE/TRANS/WP.29/GRBP/2021/22). GRBP adopted the proposal, subject to the following correction of paragraph 2.1.3.2.2. of Annex 3: “Tests carried out on request of the manufacturer at air temperatures below 5° C shall be accepted as well”. GRBP requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 7 to 03 series of amendments to UN Regulation No. 51.

GRBP/2021/22 | UN R51: Proposal for Supplement 7 to 03 series of amendments Proposal from the Noise Measurement Uncertainties informal group to to reduce variability of measurements.

6. The expert from IWG MU briefly introduced a second package of draft amendments to UN Regulation No. 51 (GRBP-74-13). GRBP also noted an updated reference document with a general approach to estimate measurement uncertainties (GRBP-74-11) and was of the view that this document could be applicable to UN Regulations beyond the scope of GRBP.

GRBP-74-11 | IWG MU (Measurement Uncertainties): Reference document

GRBP-74-13 | UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests IWG on Measurement Uncertainties identified the temperature behaviour of tyre rolling sound component as a contributor to the measurement uncertainty of pass-by noise tests. Since in UN Reg. No.117 a temperature correction of tyre rolling sound is already established the group investigated an adoption of the existing calculation procedure. Due to the different testing conditions in UN Reg. No.117, new scientific investigations and industry data in pass-by testing the group worked out a temperature correction, which is adopted to the requirements of UN Reg. No.51.

7. The expert from OICA presented the final report of the tyre performance study undertaken by the European Automobile Manufacturers’ Association (ACEA) (GRBP-74-08 and GRBP-74-09). He also presented the outcome of another study on the future sound limits for type approval of vehicles of categories M and N (GRBP-74-27) and pointed out that the final report would be presented to GRBP next year. GRBP agreed to come back to the study in the future and invited experts to directly contact OICA with questions or comments on the study.

GRBP-74-08 | UN R51: Proposal for the Foreword to the ACEA tyre performance study (GRBP-74-09)

GRBP-74-09 | UN R51: ACEA tyre performance study report

GRBP-74-27 | UN R51: Study on future sound limits values for type-approval for vehicles of category M & N TFVS analyses of the feasibility of further limit value reductions and their effectiveness in real traffic conditions.

8. On behalf of the Informal Working Group on Additional Sound Emission Provisions (IWG ASEP), the expert from Germany reported on their activities (GRBP-74-21) and introduced an updated draft new 04 series of amendments to UN Regulation No. 51 (GRBP-74-22). The Chair invited GRBP experts to study this draft and to provide comments to IWG ASEP.

GRBP-74-21 | (ASEP): IWG status report

GRBP-74-22 | UN R51: Proposal for 04 series of amendments Introduces Real Driving Additional Sound Emission Provisions (RD-ASEP) for vehicles of categories M1 and N1 covering driving conditions outside of normal driving with higher accelerations and vehicle speeds up to 100 km/h

9. GRBP noted that the Taskforce on Sound Level Limits (TF SL) would be referred to as “Task Force on Vehicle Sound” (TF VS). GRBP noted a TF SL progress report (GRBP-74-39) and draft guidelines (GRBP-74-03-Rev.1) and deferred consideration to the next session.

GRBP-74-03/Rev.1 | UN R51: Guidelines of the TF VS (Vehicle sound) Sets the Objective and Rules of Procedure for the Task Force

GRBP-74-39 | Vehicle Sound: TF Status Report

10. The expert from IMMA proposed to align the 02 series of amendments to UN Regulation No. 63 with standard ISO10844:2014 (ECE/TRANS/WP.29/GRBP/2021/24). GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 5 to the 02 series of amendments to UN Regulation No. 63.

GRBP/2021/24 | UN R63: Proposal for amendments to the 02 series of amendments Proposal to align the 02 series of amendments to UN Regulation No. 63 with standard 10844:2014 of the International Organization of Standardization (ISO).

11. The expert from Italy proposed to align UN Regulation No. 92 with the latest amendments to UN Regulation No. 41 and to reduce the number of different exhaust types to be approved (ECE/TRANS/WP.29/GRBP/2021/11 and GRBP-74-40). The experts from Germany, the United Kingdom of Great Britain and Northern Ireland and EC were not able to support the proposal. GRBP asked the expert from Italy to liaise with these experts with the aim to prepare a revised proposal for the next session.

GRBP-74-40 | UN R92: Presentation on proposed amendments Presentation on proposed amendments to align with the latest amendments made on UN Reg 41 and to reduce the number and amount of different exhaust types to be approved by NORESS manufacturers

GRBP/2021/11 | UN R92: Proposal for amendment Proposal to align UN R92 with the latest amendments to UN R41 and to reduce the number of exhaust system types (allowing for slight differences in drawings) to be approved by NORESS manufacturers.

12. The expert from France introduced a proposal that aimed to clarify the interpretation of the requirements concerning the variation of the sound emitted proportionally with the vehicle speed (ECE/TRANS/WP.29/GRBP/2021/14). She also proposed to clarify the testing requirements (GRBP-74-05). GRBP supported in principle these proposals, subject to replacement in GRBP-74-05, paragraph 6.2.3.2. of “≥” with “greater or equal to”, but in view of other ongoing activities on UN Regulation No. 138 decided to await further amendment proposals with the aim to combine them into a single package before submitting to WP.29 and AC.1.

GRBP-74-05 | UN R138: Proposal for amendments to Supplement 2 of the 01 series of amendments The purpose is to ensure that the target test speed is either 10 km/h, or 20 km/h, in forward motion, or 6 km/h in reverse motion and that the tolerances given by the regulation are linked to the testing and not used for more favorable testing speed.

GRBP/2021/14 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal to clarify interpretation of the requirements concerning variation of sound emitted proportionally with the vehicle speed.

13. The expert from Switzerland proposed to prohibit operation of the acoustic vehicle alerting system (AVAS) outside the specification speed range from 0 km/h up to and inclusive 20 km/h (GRBP-74-02). The experts from Germany, ISO and OICA (GRBP-74-28) commented on this proposal. GRBP agreed to revert to this issue at the next session.

GRBP-74-02 | UN R138: Proposal for Supplement 3 to the 01 series of amendments Proposal by expert from Switzerland to limit the maximum sound level of an “AVAS” and reduce superfluous noise pollution.

GRBP-74-28 | UN R138: Comments on proposal for Supplement 3 to the 01 series of amendments

14. GRBP recalled that the mandate of the Informal Working Group on Quiet Road Transport Vehicles for the Global Technical Regulation (IWG QRTV GTR) would expire in December 2021 and agreed in principle to extend it for 2 years, subject to a final decision of the Administrative Committee (AC.3) and/or WP.29.

15. The experts from France and EC introduced an updated proposal for the new definition of “radial tyre” (ECE/TRANS/WP.29/GRBP/2021/9). The same definition was also proposed for UN Regulations Nos. 54, 75, 106, 108 and 109 ECE/TRANS/WP.29/GRBP/2021/10. The experts from Canada and the United States of America raised a number of questions on the proposal (GRBP-74-07) and pointed out that they had started consultations with the authors. GRBP invited the stakeholders, in liaison with ETRTO, to continue discussions and agreed to come back to the proposal at the next session.

GRBP-74-07 | UN R30: Comments on the proposal for a supplement to the 02 series of amendments (ECE/TRANS/WP.29/GRBP/2021/9) Request for additional data and information in the event of a future, similar, proposal under the 1998 Agreement, which would require ensuring compatibility with other enforcement systems.

GRBP/2021/10 | Proposal for amendments to UN Regulations No. 54, 75, 106, 108, 109 Proposal to amend the definition of "radial tyre" in UN Regulations No. 54, 75, 106, 108 and 109 based on the proposal for UN Regulation No. 30 in document GRBP/2021/9.

GRBP/2021/9 | UN R30: Proposal for a Supplement to the 02 series of amendments Proposal to expand and improve the current definition of a radial structure while ensuring the radial tyres key features (mechanical decoupling between the tread and the bead).

16. The expert from France proposed to clarify the use of additional load/speed combination for a tyre type (ECE/TRANS/WP.29/GRBP/2021/13). The experts from ETRTO and the United Kingdom of Great Britain and Northern Ireland pointed out that they were developing other draft amendments to UN Regulation No. 54. Awaiting other proposals for amendments, GRBP decided to continue consideration at the next session.

GRBP/2021/13 | UN R54: Proposal for Supplement 25 to the 00 series of amendments Proposal to clarify the use of an additional load/speed combination for a tyre type.

17. The experts from France, the Netherlands and BIPAVER proposed to align the provisions for retreaded tyres with the previously adopted proposals for UN Regulations Nos. 30 and 117 and to cover all tread materials (ECE/TRANS/WP.29/GRBP/2021/15). The expert from ETRTO commented on the proposal and suggested further modifications (GRBP-74-29-Rev.1 and GRBP-74-35-Rev.1). GRBP adopted the proposal, subject to the amendments in Annex III of the session report, and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 6 to UN Regulation No. 108.

GRBP-74-29/Rev 1 | UN R108/109: Comments on proposal for amendments Comments on the proposals prepared by BIPAVER, France and Netherland to align the test procedures for retreaded tyres with the latest amendments to R30, R54 and R117.

GRBP/2021/15 | UN R108: Proposal for amendments Proposal to align the provisions for retreaded tyres with the proposals of France for UN Regulation No. 30, of the European Tyre and Rim Technical Organization (ETRTO) for UN Regulation No. 117 and to cover all the tread materials.

18. The experts from France, the Netherlands and BIPAVER proposed to align the provisions for retreaded tyres with the previously adopted proposals for UN Regulations Nos. 54 and 117 and to cover all tread materials (ECE/TRANS/WP.29/GRBP/2021/16). The expert from ETRTO commented on the proposal and suggested further modifications (GRBP-74-29-Rev.1 and GRBP-74-30-Rev.2). GRBP adopted the proposal with the amendments in Annex IV and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 11 to UN Regulation No. 109.

GRBP-74-29/Rev 1 | UN R108/109: Comments on proposal for amendments Comments on the proposals prepared by BIPAVER, France and Netherland to align the test procedures for retreaded tyres with the latest amendments to R30, R54 and R117.

GRBP-74-30/Rev.2 | UN R109: Comments on the proposal for amendments

GRBP/2021/16 | UN R109: Proposal for amendments Proposal to align the provisions for retreaded tyres with the proposals of the European Tyre and Rim Technical Organization (ETRTO) for UN Regulations Nos. 54 and 117 and to cover all the tread materials.

19. The expert from France tabled a proposal with the aim to allow, under certain conditions of traceability, upgrading of the service description of a used casing (ECE/TRANS/WP.29/GRBP/2021/18). GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 11 to UN Regulation No. 109.

GRBP/2021/18 | UN R109: Proposal for Supplement 11 to the 00 series of amendments Proposal to allow, under certain condition of traceability, upgrading of the service description of a used casing.

20. GRBP noted GRBP-74-06 and GRBP-74-34 and invited the expert from France to submit these proposals to the next session in the form of an official document.

GRBP-74-06 | UN R109: proposal for amendments to the 00 series of amendments

GRBP-74-34 | UN R109: Summary of the proposal for amendments to the 00 series of amendments Summary of GRBP-74-06

21. The expert of ETRTO tabled draft amendments that introduced an “ice grip tyre” definition and editorial corrections (ECE/TRANS/WP.29/GRBP/2021/17). GRBP adopted the proposal, as amended by GRBP-74-31-Rev.1, and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 14 to the 02 series of amendments to UN Regulation No. 117.

GRBP-74-31/Rev.1 | UN R117: Proposal for amendments to the 02 series of amendments

GRBP/2021/17 | UN R117: Proposal for a Supplement to the 02 series of amendments Proposal to introduce provisions for ice grip tyres, clarify Conformity of Production, sample submissions, and testing methods, and to make editorial corrections and improvements.

22. The experts from IWG for Wet Grip on Worn Tyres (WGWT) reported on their progress (GRBP-74-41) and presented updated Terms of Reference of IWG WGWT (GRBP-74-42). GRBP adopted the revised Terms of Reference, as contained in Annex V of the session report.

GRBP-74-41 | IWG WGWT: Status report

GRBP-74-42 | IWG WGWT: Proposal for revised Terms of Reference IWG to propose amendments to UN R117

23. The expert from France, in her capacity of Co-Chair IWG WGWT, presented draft amendments that introduced a procedure and thresholds on wet grip performance for C1 tyres in worn state (ECE/TRANS/WP.29/GRBP/2021/12, as updated by GRBP-74-33-Rev.1). GRBP adopted GRBP-74-33-Rev.1 and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as a new draft 03 series of amendments to UN Regulation No. 117. GRBP noted that, with the aim to complete the proposal and remove few square brackets, an informal document would be prepared for the next session. If adopted, this document would also be submitted to the March 2022 sessions of WP.29 and AC.1. GRBP noted that, to avoid possible uncertainty, the adopted draft Supplement 14 to the 02 series of amendments (see para. 21 above) would be explicitly included in the future WP.29 document with the new draft 03 series of amendments to UN Regulation No. 117.

GRBP-74-33/Rev.1 | UN R117: Proposal for amendments IWG WGWT proposes to amend document ECE/TRANS/WP.29/GRBP/2021/12

GRBP/2021/12 | UN R117: Proposal for amendments Proposal from the Worn Tyres working group to introduce a procedure and thresholds on wet grip performance for C1 tyres in worn state.

GRBP/2021/17 | UN R117: Proposal for a Supplement to the 02 series of amendments Proposal to introduce provisions for ice grip tyres, clarify Conformity of Production, sample submissions, and testing methods, and to make editorial corrections and improvements.

24. GRBP considered GRBP-74-04 and invited the expert from France to liaise with the experts from ETRTO with the aim to prepare a working document for the next session.

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.

25. On behalf of the Task Force on Tyre Pressure Monitoring System and on Tyre Installation (TF TPMSTI), the expert from EC briefed GRBP on their progress (GRBP-74-25) and proposed amendments that aimed to align the transitional provisions in UN Regulation No. 141 with those in European Union Regulation 2019/2144 (ECE/TRANS/WP.29/GRBP/2021/19). GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 1 to the 01 series of amendments to UN Regulation No. 141.

GRBP-74-25 | Tyre Pressure Monitoring System & Tyre Installation (TPMSTI): TF status report

GRBP/2021/19 | UN R141: Proposal for Supplement 1 to 01 series of amendments Proposal from the TPMSTI task force to align UN Regulation No. 141 with the transitional provisions of European Union (EU) Regulation 2019/2144.

26. The expert from TF TPMSTI presented further amendments to UN Regulation No. 141 that introduced an alternative procedure for type approval of trailers (vehicles of categories O3 and O4), regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS) (ECE/TRANS/WP.29/GRBP/2021/20). GRBP adopted these proposals, as amended by GRBP-74-37, and requested the secretariat to submit them for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as part of draft Supplement 1 to the 01 series of amendments to UN Regulation No. 141.

GRBP-74-37 | UN R141: Proposal for amendments to document GRBP/2021/20 Proposal from the TPMSTI task force to update draft provisions for performance testing of Tyre Pressure Monitoring System/Tyre Pressure Refill System/Central Tyre Inflation System and for an alternative procedure for type approval of subject trailer(s).

GRBP/2021/20 | UN R141: Proposal for Supplement 2 to 01 series of amendments Proposal from the TPMSTI task force to introduce in UN Regulation No. 141 an alternative procedure for type approval of trailers (vehicles of categories O3 and O4) regarding their Tyre Pressure Monitoring System (TPMS), Tyre Pressure Refilling System (TPRS) and Central Tyre Inflation System (CTIS).

27. GRBP generally supported GRBP-74-26 and invited TF TPMSTI to submit it to the next session in the form of an official document.

GRBP-74-26 | UN R141: Proposal for Supplement 3 to the 01 series of amendments TF TPMSTI implements the requirements for a Tyre Pressure Refill System (TPRS) and a Central Tyre Inflation System (CTIS)

28. The expert of TF TPMSTI proposed amendments that aimed to align the transitional provisions in UN Regulation No. 142 with those in European Union Regulation 2019/2144 (ECE/TRANS/WP.29/GRBP/2021/21). GRBP adopted the proposal and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as draft Supplement 1 to the 01 series of amendments to UN Regulation No. 142.

GRBP/2021/21 | UN R142: Proposal for Supplement 1 to the 01 series of amendments Proposal from the TPMSTI task force order to align the transitional provisions in UN Regulation No. 142 with the transitional provisions in European Union (EU) Regulation 2019/2144.

29. The expert from Finland reported on the progress of the Task Force on Studded Tyres (TF ST) (GRBP-74-15) and introduced updated Guidelines for TF ST (GRBP-74-17). GRBP adopted these Guidelines.

GRBP-74-15 | (Studded Tyres): TF status report

GRBP-74-17 | (TF Studded Tyres): Updated draft Objectives and Rules of Procedure

30. The expert from Finland presented a revised proposal for a new UN Regulation on studded tyres that had been prepared by TF ST (ECE/TRANS/WP.29/GRBP/2021/5/Rev.1). The expert from ETRTO suggested several modifications to the proposal (GRBP-74-32). GRBP adopted ECE/TRANS/WP.29/GRBP/2021/5/Rev.1 as amended by GRBP-74-32 and requested the secretariat to submit it for consideration and vote at the March 2022 sessions of WP.29 and AC.1 as a new draft UN Regulation.

GRBP-74-32 | UN R (Studded Tyres): Proposals for amendments This proposal aligns with the “Alpine symbol” location that is not restricted to the lower area of the tyre as prescribed in UN Regulation No. 117, especially considering the larger dimensions of the “Snow Grip Marking for Studded Tyres"

GRBP/2021/5/Rev.1 | Studded tyres: Proposal for a draft new UN Regulation Proposal from the Studded Tyres task force aim to create a new UN Regulation on uniform provisions concerning the approval of studded tyres with regard to their snow performance (distinguished from studdable tyres regulated by UN Regulation No. 117).

31. GRBP noted that, as a next step, TF ST would elaborate a proposal to introduce an ice grip symbol for tyres of class C1 (GRBP-74-16).

GRBP-74-16 | (Studded Tyres): Proposal to introduce marking for Ice Grip tyres of class C1 IWG proposal to introduce to establish a cross-reference to the Ice Grip test method and to introduce the same pictogram that will be included in the UN Regulation 117

32. On behalf of the Task Force on Reverse Warning (TF RW), the expert from OICA reported on the progress of TF RW (GRBP-74-23) and briefly introduced a proposal for a new UN Regulation on reversing alarm (GRBP-74-24) which would be submitted as an official document to the next session. GRBP encouraged all experts to consider GRBP-74-24 and to provide comments to TF RW.

GRBP-74-23 | (Reverse Warning Sound): TF status report

GRBP-74-24 | (Reverse Warning Sound) : Proposal for the approval of audible devices and of motor vehicles with regard to their audible signals

33. No issues were considered under this item.

34. No issues were considered under this item.

35. No new information was provided.

36. GRBP took note of the highlights of the June 2021 session of WP.29 on GRBP and common issues (GRBP-74-14).

GRBP-74-14 | General information and WP29 highlights

37. The Chair presented an updated list of GRBP priorities (GRBP-74-38) and announced his intention to convene, at the beginning of October 2021, an online informal meeting on the issue. GRBP commented on the list and requested its Chair to circulate a revised document as soon as possible. GRBP also noted that priority items would be submitted to WP.29 for inclusion into the WP.29 programme of work for the years 2022-2023.

GRBP-73-24 | Priorities of the Working Party on Noise and Tyres (GRBP)

GRBP-74-38 | Work plan priorities

38. The expert from EC provided an update on the ongoing study of the impact assessment of Euro 5 sound emissions level limits for L-category vehicles (GRBP-74-36).

GRBP-74-36 | Sound Emissions Level Limits: impact assessment on Euro 5 step on L-category

39. Based on GRBP-74-44-Rev.1, GRBP adopted a list of main decisions (Annex VI) in accordance with silence procedure.

GRBP/44/Rev.1 | Draft list of main decisions of GRBP-74

40. GRBP was informed that Mr. H. Berger (Switzerland) and Mr. M. Klopotek von Glowczewski (OICA) would no longer attend GRBP meetings, due to impending retirement. GRB thanked them for their valuable contributions and wished them success in the future.

41. Due to lack of time, GRBP postponed consideration of GRBP-74-18 to the next session.

GRBP-74-18 | (DETA): Proposal to improve the use of the Unique Identifier (UI)

42. For its seventy-fifth session, scheduled to be held in Geneva from 8 to 11 February 2022, GRBP decided to keep the same structure for the provisional agenda. GRBP noted that the deadline for the submission of official documents to the secretariat would be 15 November 2021, twelve weeks prior to the session.

43. In compliance with Rule 37 of the Rules of Procedure (TRANS/WP.29/690/Rev.2), GRBP called for the election of officers. The representatives of the Contracting Parties, present and voting, elected unanimously Mr. Serge Ficheux (France) as Chair and Mr. Andrei Bocharov (Russian Federation) as Vice-Chair for the sessions of GRBP scheduled for the year 2022.