1. The Working Party on Brakes and Running Gear (GRRF) held its eighty-sixth session from 12 to 16 February 2018 in Geneva. The meeting was chaired by the elected Chair of GRRF, Mr. B. Frost (United Kingdom of Great Britain and Northern Ireland). Experts from the following countries participated in the work, following Rule 1 of the Rules of Procedure of the World Forum for Harmonization of Vehicle Regulations (WP.29) (TRANS/WP.29/690/Rev.1): Australia, Belgium, Canada, Czech Republic, Denmark, Finland, France, Germany, Hungary, India, Italy, Japan, the Netherlands, Norway, Poland, Russian Federation, Republic of Korea, San Marino, Slovakia, South Africa, Spain, Sweden, Switzerland and the United Kingdom of Great Britain and Northern Ireland (UK). Experts from the following non-governmental organizations (NGOs) participated: the Bureau International Permanent des Associations de Vendeurs et Rechappeurs de Pneu (BIPAVER), the International Motor Vehicle Inspection Committee (CITA), the European Association of Automotive Suppliers (CLEPA/MEMA/JAPIA), the European Tyre and Rim Technical Organisation (ETRTO), the Federation of European Manufacturers of Friction Materials (FEMFM), the International Motorcycle Manufacturers Association (IMMA), the International Organization for Standardization (ISO) and the International Organization of Motor Vehicle Manufacturers (OICA). Upon the special invitation of the Chair, the following NGOs participated: Imported Tyre Manufacturers Association (ITMA) and the Recreation Vehicle Industry Association (RVIA).

2. GRRF considered the agenda prepared for the eighty-sixth session and adopted it (ECE/TRANS/WP.29/GRRF/2018/1 and Add. 1). The adopted agenda is reproduced in GRRF-86-27, including all informal documents received until the session’s starting date. GRRF also adopted the running order for the session as proposed in GRRF-86-01. The informal documents distributed during the session are listed in Annex I of the session report. The list of the Informal Working Groups of GRRF is reproduced in Annex II of the session report

GRRF-86-01 | GRRF: Running order of the agenda for the 86th (January 2018 session)

GRRF-86-27 | GRRF-86: Updated and consolidated provisional agenda Session agenda updated pursuant to the latest informal document submissions.

GRRF/2018/1 | Provisional agenda for the 86th GRRF session

GRRF/2018/1/Add.1 | GRRF: Annotated provisional agenda for the 86th (February 2018) session

3. The Chair gave the floor to Mr. Li Yuwei, newly appointed Director of the Sustainable Transport Division. Mr Li introduced himself. He recalled his previous activities related to UN Transport legal instruments administered by UNECE. He mentioned the importance of vehicle regulations addressing vehicle safety and therefore road safety in order to meet the ambition of the Sustainable Development Goals to halve the number of fatalities due to road crashes by 2020.

4. The secretariat introduced GRRF-86-08, announcing that the next GRRF session would take place on 25-28 September 2018 and recalling that the deadline for the submission of official documents would be 29 June 2018.

GRRF-86-08 | General information for the February 2018 GRRF session

5. The secretariat reminded that Footnote 5 in the table of Annex 3 in the 01 series of amendments to Regulation No. 131 imposed the review of the target speed in cell H2 before 1 November 2021.

6. The expert from Japan presented (GRRF-86-12) a status report of the activities of the Informal Working Group (IWG) on Advanced Emergency Braking Systems (AEBS). GRRF agreed that AEBS for light vehicles should perform when the target is a vehicle, a pedestrian or a cyclist, recognizing that the technology for cyclist detection is still being refined . GRRF agreed to also consider the concern raised by the expert from Sweden on the detection of big animals by AEBS.

7. GRRF also agreed that AEBS for light vehicle should not be included in UN Regulation No. 131, noting that UN Regulation No. 131 is aimed at addressing situations on highways, while AEBS systems for light vehicle would primarily address urban situations.

GRRF-86-12 | Light Vehicle AEBS informal group: Report on the 2nd session Report on the development of AEBS requirements for light vehicles, including a note on the intention to seek GRRF approval for a new regulation on M₁/N₁ vehicle AEBS separate from the current UN R131 on heavy-duty vehicle AEBS.

8. The expert from Germany recalled the purpose of ECE/TRANS/WP.29/GRRF/2017/24 proposing more stringent provisions on automatic reactivation of AEBS. He presented GRRF-86-32 addressing concerns expressed at the September 2017 session on the original proposal. The expert from OICA answered to the proposal (GRRF-86-18). The experts from Nordic Countries supported OICA’s proposal as they are facing user acceptance issues on their market due to false AEBS warnings. GRRF urged the experts from Germany and from OICA to submit a revised proposal for the September 2018 session of GRRF.

GRRF-86-18 | UN R131: Proposal to amend document GRRF/2017/24 OICA counter-proposal to address the German concern over manual deactivations of AEB systems. The original document (GRRF/2017/24) proposed automatic reactivation of the AEBS when the vehicle speed exceeds 30 km/h. OICA proposes reactivation after 15 minutes of continuous operation at a speed above 70 km/h.

GRRF-86-32 | UN R131: Proposal to amend document GRRF/2017/24 Germany proposed, in document GRRF/2017/24, to require automatic reactivation of a manually deactivated automatic braking system. One concern with the proposal invoked the need for prolonged deactivation under certain circumstances, such as when a vehicle is fitted temporarily with a snow plow. This proposal would explicitly require AEBS to be capable of detecting a blocked sensor (already implicit in the regulation) such that AEBS would not reactivate in such cases.

GRRF/2017/24 | Proposal for amendments to Regulation No. 131 Proposal to restrict manual deactivation of AEB systems to speeds under 30 km/h. The proposal would require automatic reactivation of the AEBS when the vehicle speed exceeds 30 km/h.

9. GRRF did not receive any new document to be discussed under this agenda item.

10. The secretariat recalled the mandate extension until February 2019 of the IWG on Modular Vehicle Combinations (MVC) adopted by WP.29 in March 2017.

11. The Chair of GRRF recalled the purpose of ECE/TRANS/WP.29/GRRF/2013/13, adopted during the seventy-fifth GRRF session. The document remained on the agenda of GRRF, pending submission to the World Forum for Harmonization of Vehicle Regulations (WP.29) and the Administrative Committee of the 1958 Agreement (AC.1) of the adopted text for Regulation No. 89 (Speed limitation devices). Therefore, it was considered under agenda item 12(b).

GRRF/2013/13 | Proposal for collective amendments - Regulation Nos. 13, 13-H, 79, 89, and the LDWS and AEBS regulations Proposal for collective amendments of amendments to Regulations Nos. 13 (Heavy vehicle braking), 13-H (Brakes of M1 and N1 vehicles), 79 (Steering equipment) and 89 (Speed limitation devices) and the new Regulations on LDWS and AEBS to clarify the references to Regulation No. 10 into the UN Regulations mentioned above.

12. The expert from Australia presented ECE/TRANS/WP.29/GRRF/2018/2 and ECE/TRANS/WP.29/GRRF/2018/3 clarifying the obligation for the vehicle type to be equipped with a Brake Assist System (BAS) or an Electronic Stability Control (ESC) system in order to receive a type approval according to UN Regulation No. 139 or UN Regulation No. 140 respectively. GRRF supported both proposals and requested the secretariat to submit them to WP.29 and AC.1 as draft Supplements 1 to UN Regulations Nos. 139 and 140 for consideration and vote at their June 2018 sessions.

GRRF/2018/2 | Proposal for a Supplement to Regulation No. 139 Proposal to clarify the purpose of UN R139 which was originally established through the extraction of brake assist system (BAS) provisions from UN R13-H on brake systems. Within the context of UN R13-H, the BAS provisions were written to assess performance in cases where a vehicle was fitted with a brake assist system. As a stand-alone regulation, UN R139 applies only to vehicles that are equipped with BAS. Therefore, this supplement proposes to refine the text to remove the "if fitted" language and ensure that UN R139 can only be applied to a vehicle equipped with a BAS.

GRRF/2018/3 | Proposal for a Supplement to Regulation No. 140 Proposal to remove “if fitted” language from the text to clarify that UN R140 can only be applied to a vehicle equipped with a ESC system. UN R140 was originally established through the extraction of electronic stability controls (ESC) provisions from UN R13-H on brake systems. Within the context of UN R13-H, the ESC provisions were written to assess performance in cases where a vehicle was fitted with an electronic stability control system. As a stand-alone regulation, however, UN R140 applies only to vehicles that are equipped with ESC. The proposal also would correct an apparent error in to Annex 4, paragraph 2.1. where the reference to "ISO 15037 Part 1:2005" should read "ISO 15037 Part 1:2006".

13. The expert from OICA introduced GRRF-86-16-Rev.1 with provisions related to the introduction of Remote Controlled Parking (RCP) in UN Regulation No. 79 (Steering equipment).

14. GRRF adopted the proposal as reproduced in Annex III and requested the secretariat to submit it as draft Supplement 1 to the 01 series of amendments to UN Regulation No. 13-H and as draft Supplement 15 to the 11 series of amendments to UN Regulation No. 13 to WP.29 and AC.1 for consideration and vote at their June 2018 sessions.

GRRF-86-16/Rev.1 | UN R13 and 13-H: Proposal for amendments to the 01 series of amendments Revised proposal concerning remote-controlled parking (RCP). The new series 02 of Regulation 79 introduced requirements for RCP systems. An RCP system requires the engagement of an EPB (electronic parking brake) once the manoeuvre has finished and the ignition is switched off. This proposal would allow the release or disconnection of the EPB by a remote control system (approved to R79) so the RCP can subsequently drive the vehicle out of a parking spot. The second proposal in the original document concerning regenerative braking and stop lamp activation will be discussed again as a revised formal document at the September 2018 GRRF session.

15. The expert from CLEPA introduced GRRF-86-33, highlighting a mistake in Revisions 7 and 8 of UN Regulation No. 13. The secretariat agreed to correct both revisions.

GRRF-86-33 | UN R13: Proposal for a Corrigendum to Revisions 7 and 8 Revision 7 of Regulation No. 13 includes a former version of Figure 1B which was changed with Amend 4 to Revision 6 of UN Regulation No. 13. This correction is also needed for Revision 8, which contains the same error.

16. No intervention was made under this agenda item.

17. The Chair of the IWG on the Agricultural Coupling Devices and Components reported on the activities of the group (GRRF-86-06) and presented GRRF-86-02, introducing ECE/TRANS/WP.29/GRRF/2018/4 with a draft Regulation on the Agricultural Coupling. GRRF received information on the texts of para. 4.5.

18. GRRF agreed that the stress weld limit should be qualified as absolute. It adopted the document and requested the secretariat make the necessary change and to submit the proposal as new draft UN Regulation on uniform provisions concerning the approval of mechanical coupling components of combinations of agricultural vehicles to WP.29 and AC.1 for consideration and vote at their June 2018 sessions.

GRRF-86-02 | Agricultural vehicle couplings: Introduction of the proposed new regulation

GRRF-86-06 | Status report of the ACDC informal group Report of the expert group on agricultural coupling devices and components on the development of a new UN Regulation.

GRRF/2018/4 | Proposal for a new Regulation on agricultural vehicle couplings Formal proposal from the ACDC informal group for consideration by GRRF for a new Regulation on uniform provisions concerning the approval of mechanical coupling components of combinations of agricultural vehicles.

19. The expert from CLEPA introduced GRRF-86-03 proposing a Corrigendum to UN Regulation No. 55. GRRF invited the expert from CLEPA to submit a revised proposal for consideration at the September 2018 session.

GRRF-86-03 | UN R55: Proposal for amendments Proposal to correct Revision 2 of UN R55 to align with the text of Supplement 04 to 01 series of amendments. This proposal removes a subparagraph under paragraph 13.1 that should not have been included in the Revision.

20. The expert from Poland introduced GRRF-86-34 proposing a clarification of item 9.3 in Annex 1 to UN Regulation No. 55. GRRF requested the secretariat to distribute this proposal with an official symbol at its September 2018 session.

GRRF-86-34 | UN R55: Draft proposal for a new supplement to the 01 series of amendments Annex 1 of UN R55 concerns the type approval communication form. Item 9.3. requires information "For Class A mechanical coupling devices or components, including towing brackets". Poland proposes to add "if fitted" to the description in order to avoid interpretations that brackets must be part of the approval (i.e., the approval may concern the coupling ball without additional attachments).

21. The expert from Italy withdrew GRRF-86-10 and GRRF-86-11.

GRRF-86-10 | GTR 3: Revised proposal for Amendment 3 Revised proposal to align GTR No. 3 with technical progress, addressing among others: electromagnetic compatibility/immunity of ABS-systems, ABS performance requirements for category 3-5 vehicles (three-wheelers), uniform requirements for equipment such Emergency Stop Signal and the means to disable the ABS, if equipped. This amendment aims to harmonize GTR with recent amendments made to UN Regulation No. 78 while addressing its use under self-certification compliance systems.

GRRF-86-11 | GTR 3: Revised report on Amendment 3 Revised technical report to accompany the proposal for amendment 3 (concerning mainly ABS issues) to GTR 3.

22. The expert from IMMA introduced GRRF-86-35 with provisions allowing additional conditions for the activation of the stop lamp. The proposal received some comments. GRRF noted that some conditions were related to regenerative braking and, therefore, GRRF recommended to explore corresponding provisions in UN Regulations Nos. 13 and 13-H on the braking performance of regenerative braking and to complement the proposal for amendments to UN Regulation No. 78 with corresponding provision, not only addressing brake light activation requirements. GRRF noted the potential need to clarify the need of the word “instantaneous” in para. 5.1.16. The expert from IMMA agreed to submit a revised proposal for the September 2018 session of GRRF.

GRRF-86-35 | UN R78: Proposal for amendments Updated version of document GRRF/2017/14 to amend UN R78 with regard to stop lamp activation. IMMA has proposed (document GRE/2015/42) to allow stop lamp activation under UN R53 through means other than application of the brakes (e.g., by electric vehicle regenerative braking). This proposal accordingly amends UN R78 regarding generation of the brake signal.

23. The expert from Spain recalled the purpose of the Special Interest Group of Experts on UN Regulation No. 90 and presented the status report of the group (GRRF-86-39).

24. The expert mentioned that UN Regulation No. 90 was not aligned with corresponding provisions in UN Regulation No. 78 and proposed amendments to Annex 7 (GRRF-86-41). GRRF requested the secretariat to keep this document on the agenda for its September 2018 session.

GRRF-86-39 | UN R90: Report of the Special Interest Group

GRRF-86-41 | UN R90: Draft proposal for amendments to Annex 7 Proposal to add replacement brake components for L₆ and L₇ (quadricycles) to the regulation, to correct references, and to clarify the text. This proposal aligns UN R90 with UN R78 (motorcycle braking).

25. The expert from CLEPA introduced GRRF-86-40 proposing to amend ECE/TRANS/WP.29/2016/58, which was prepared on the basis of three documents with conflicting provisions. The secretariat informed GRRF that ECE/TRANS/WP.29/2016/58 was adopted by AC.1 as Supplement 3 to UN Regulation No. 90 and that the corrections proposed could not be adopted as drafted. The secretariat agreed to prepare a revised version that could potentially be adopted (GRRF-86-40-Rev.1) by AC.1 as a Supplement 4.

GRRF-86-40 | UN R90: Proposal for amendments Proposal to resolve inconsistencies present from Supplement 2 to the 02 series of amendments resulting from the approval of proposals in documents GRRF/2014/23/Rev.2, GRRF/2015/22 and GRRF/2016/22. The proposal also introduces provisions for L category (motorcycle and related) vehicles.

GRRF-86-40/Rev.1 | UN R90: Proposal for amendments Proposal of requirements for L category vehicles. The original proposal addressed a broader range of issues and could not be finalized during the GRRF session. This document allows items where consensus was reached to move forward for WP.29 consideration.

WP.29/2016/58 | Proposal for Supplement 3 to the 02 series of amendments to Regulation No. 90 Proposal to introduce provisions for the approval of replacement brake discs for L-category (motorcycle and related) vehicles, to remove tables specifying general values for replacement discs and drums that are identical to the original, change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.040 mm, and clarify the text in order to avoid additional administrative and financial costs to the applicant due to misinterpretation of the intent of the text.

26. The expert from the Russian Federation, chairing the IWG on Tyre GTR, reported (GRRF-86-21) on the work done by the IWG on Tyres on the development of draft Amendment 2 of the GTR No. 16 (Tyres). He informed GRRF that a first informal document could be delivered for the September 2018 session of GRRF.

GRRF-86-21 | Status report of the TyreGTR informal group

27. The Chair of the IWG introduced GRRF-86-22 with a memorandum on a “global marking for tyres”. He invited the Contracting Parties to the 1998 Agreement to review this memorandum and assess, whether the approach for tyre global marking in UN GTR No. 16 could be supported and whether it would be feasible to recognize a global tyre marking as an alternative to the existing national/regional tyre marking. The Chair invited GRRF delegates to respond to the memorandum.

GRRF-86-22 | GTR 16: Memorandum explaining introduction of global marks for tyres

28. The Secretary of the IWG on Tyres introduced GRRF-86-28 and GRRF-86-29, providing further details and explanations on what may be delivered by the IWG in September 2018.

GRRF-86-28 | GTR 16: Presentation of Amendment 2 TyreGTR informal group presentation of Amendment 2 to the GTR on tires.

GRRF-86-29 | GTR 16: Draft proposal of Amendment 2 Marked up text of the tyre GTR Amendment 1 with improvements to the text (Phase 2A in the development of the regulation).

29. The expert from ETRTO presented GRRF-86-04, introducing GRRF-86-05, and announcing the intention of ETRTO to propose provisions for extended mobility tyres in UN Regulations Nos. 30 and 64, on the basis of initial work done by the tyre industry at the International Standardization Organization (ISO). GRRF noted the reference to ISO documentation and invited the expert from ETRTO to prepare a more detailed proposal for consideration at the next GRRF session, both concerning UN Regulations Nos. 30 and 64.

GRRF-86-04 | Proposal for amendments to UN Regulations Nos. 30 and 64 Discussion of run-flat tyres and extended mobility tyres (EMT) in support of a general proposal to establish approval procedures for EMT under UN R30 and include EMT as "emergency mobility equipment" under UN R64. The proposal makes reference to recent activity on ISO 16992 regarding EMT test protocols.

GRRF-86-05 | UN R30 and R64: Introductory statement on proposal for EMT requirements Introductory statement to document GRRF-86-04 proposing amendments in order to provide a legal approval framework for extended mobility tyres under UN R30 and their recognition as "emergency mobility equipment" under UN R64.

30. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2018/5 with editorial correction and a number of imperial tyre sizes updated in Annex 5. He also introduced ECE/TRANS/WP.29/GRRF/2018/11 as a consolidated version of UN Regulation No. 54, containing ECE/TRANS/WP.29/GRRF/2018/5. GRRF adopted ECE/TRANS/WP.29/GRRF/2018/11 as amended (GRRF-86-23 and GRRF-86-26) and as reproduced in Addendum 1 (based on GRRF-86-43) to the report. GRRF requested the secretariat to submit this amended proposal as draft Supplement 23 to UN Regulation No. 54 to WP.29 and AC.1 for consideration and vote at their June 2018 sessions.

GRRF-86-23 | UN R54: Proposal for amendments to documents GRRF/2018/5 and GRRF/2018/11 Correction of a cross-reference error in the original documents GRRF/2018/5 and GRRF/2018/11.

GRRF-86-26 | UN R54: Proposal for amendments to documents GRRF/2018/5 and GRRF/2018/11 Proposal to amend footnotes in Annex 5, Part II, Table B in order to clarify categories of use.

GRRF-86-43 | UN R54: Proposal for a Supplement as adopted by GRRF Proposal as approved by the GRRF to introduce formulae for tyre sizes in Annex 5, Table B, add sizes in Annex 5, Part II, Tables C and E for old sizes that do not follow the guidelines/formulae applicable for high flotation tyres, amends footnotes in Annex 5, Part II, Table B in order to clarify categories of use, clarify tyre width tolerances, correct paragraph numbering and references, align the text editorially with UN R30 and to make other editorial improvements,

GRRF/2018/11 | Proposal for a Supplement to Regulation No. 54 Consolidated version of UN R54 incorporating the proposed amendments in document GRRF/2018/5.

GRRF/2018/5 | Proposal for amendments to Regulation No. 54 Proposal to introduce formulae for tyre sizes in Annex 5, Table B, add sizes in Annex 5, Part II, Tables C and E for old sizes that do not follow the guidelines/formulae applicable for high flotation tyres, clarify tyre width tolerances, correct paragraph numbering and references, align the text editorially with UN R30 and to make other editorial improvements,

31. The expert from ETRTO introduced GRRF-86-25, highlighting a mistake in a footnote in ECE/TRANS/WP.29/2017/8 adopted as Supplement 17 to UN Regulation No. 75. GRRF adopted a proposal as reproduced in Annex V and requested the secretariat to submit it a Corrigendum 1 to UN Regulation No. 75 to WP.29 and AC.1 for consideration and vote at their June 2018 sessions.

GRRF-86-25 | UN R75: Proposal for a Corrigendum Proposal to correct a mistake in Supplement 17 to UN R75 (adopted document WP.29/2017/8). Annex 7, Paragraph 1.2., Footnote 1 should refer to UN R54, not UN R106.

32. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2018/6 and ECE/TRANS/WP.29/GRRF/2018/7 (amended by GRRF-86-31) with tyre sizes and tyre classification codes common in the United States of America and standardised by the Tire and Rim Association Inc. and with marking provisions on inflation pressure (for measurements and tests). He also introduced ECE/TRANS/WP.29/GRRF/2018/12 as a consolidated version of UN Regulation No. 106, containing ECE/TRANS/WP.29/GRRF/2018/6 and ECE/TRANS/WP.29/GRRF/2018/7. GRRF adopted ECE/TRANS/WP.29/GRRF/2018/12 as amended and reproduced in Addendum 2 (based on GRRF-86-42) to the report. GRRF requested the secretariat to submit this amended proposal as draft Supplement 16 to UN Regulation No. 106 to WP.29 and AC.1 for consideration and vote at their June 2018 sessions.

GRRF-86-31 | UN R106: Proposal for amendments to GRRF/2018/6 and GRRF/2018/12 Proposal to add a paragraph to define the purpose of the "SS" marking introduce by the amendments to UN R106 on agricultural and related off-road tyres.

GRRF-86-42 | UN R106: Proposal for a Supplement as adopted by GRRF Proposal as approved by GRRF to add tyre sizes and tyre classification codes common in the United States and standardised by the Tire and Rim Association, but needed under UN Regulation No. 106 in order to permit their type approval in conformity with Regulation EU 167/2013 for imported tyres. The proposal adds kPa marking specifications for use in measurements and tyre testing. The proposal further includes changes to the text and addition of tyre size designations to Annex 5 and Annex 7:<ol class="alpha"><li>Paragraph 2.33.2 deleted since new tables for IF and VF were added to Annex 7</li><li>Paras 3.2., 3.2.2. and 5.4. modified because "tyres submitted for approval" cannot bear an approval mark until approved and the "only" as it is written can be misunderstood. Para. 3.2.2. was aligned to the wording in other UN Regulations. Reference to para. 3.3 in paragraph 5.4. is deleted because paragraph 3.3 does not refer to specific markings</li><li>Para 6.1.2. amended to align the wording to the headers in Annex 5 and to correct the reference to the footnote</li><li>Para 6.2.1. amended to restore the proper references after renumbering resulting from the latest Supplements</li><li>The amendment of Annex 5, Table 5 adds the value for the overall diameter (D) in column (*) that applies to tyres marked with classification code "I-3"</li><li>Annex 5, Table 6, Note 1 amended because most of the tyre sizes listed in the table, especially those identified by the "classification code I‐3" (i.e. Traction tread), are currently available in both versions: ‘implement’ to be used on agricultural machinery and 'IND' to be used on construction vehicles. The two types of tyres have the same type of size designation and the same dimensions. Therefore some manufacturers identify those tyres with the suffix 'IND' rather than with the suffix 'IMP' thus applying the variation of load capacity with speed as published in Annex 7 Part E. The reason for this proposal is to avoid a duplication of tables with a new table only replacing the suffix IMP with the suffix IND.</li><li>The addition of the footnote to Annex 5, Table 7 answers the request by GRRF to introduce appropriate formulae in the Regulation instead of continuously updating Annex 5.</li><li>References in Annex 7 corrected pursuant to the renumbering following the introduction of three new paragraphs in Supplement 15 approved during the 172nd session of WP.29.</li><li>Annex 7, Part A amended to conform with Tire and Rim Association specifications for code designated diagonal tyres with speed symbol A8.</li></ol>

GRRF/2018/12 | Proposal for a Supplement to Regulation No. 106 Consolidated version of UN R106 including ETRTO proposed amendments (see documents GRRF/2018/6 and GRRF/2018/7).

GRRF/2018/6 | Proposal for amendments to Regulation No. 106 This document consolidates previous documents GRRF/2017/19 and informal document GRRF-84-17 taking into account the request for addition of tyre sizes and tyre classification codes common in the United States and standardised by the Tire and Rim Association, but needed to be added to UN Regulation No. 106 in order to permit their type approval in order to conform to Regulation EU 167/2013 for tyres to be exported to Europe. It includes addition/modifications of some paragraphs to the main text of the Regulation as well as the addition of some tyre size designations to Annex 5 and Annex 7:<ol class="alpha"><li>ISO 4251-4 replaced by ISO 18805</li><li>Paragraph 2.33.2 deleted since new tables for IF and VF were added to Annex 7</li><li>Paras 3.2., 3.2.2. and 5.4. modified because "tyres submitted for approval" cannot bear an approval mark until approved and the "only" as it is written can be misunderstood. Para. 3.2.2. was aligned to the wording in other UN Regulations. Reference to para. 3.3 in paragraph 5.4. is deleted because paragraph 3.3 does not refer to specific markings</li><li>Para 6.1.2. amended to align the wording to the headers in Annex 5 and to correct the reference to the footnote</li><li>Para 6.2.1. amended to restore the proper references after renumbering resulting from the latest Supplements</li><li>The amendment of Annex 5, Table 5 adds the value for the overall diameter (D) in column (*) that applies to tyres marked with classification code "I-3"</li><li>Annex 5, Table 6, Note 1 amended because most of the tyre sizes listed in the table, especially those identified by the "classification code I‐3" (i.e. Traction tread), are currently available in both versions: ‘implement’ to be used on agricultural machinery and 'IND' to be used on construction vehicles. The two types of tyres have the same type of size designation and the same dimensions. Therefore some manufacturers identify those tyres with the suffix 'IND' rather than with the suffix 'IMP' thus applying the variation of load capacity with speed as published in Annex 7 Part E. The reason for this proposal is to avoid a duplication of tables with a new table only replacing the suffix IMP with the suffix IND.</li><li>The addition of the footnote to Annex 5, Table 7 answers the request by GRRF to introduce appropriate formulae in the Regulation instead of continuously updating Annex 5.</li><li>References in Annex 7 corrected pursuant to the renumbering following the introduction of three new paragraphs in Supplement 15 approved during the 172nd session of WP.29.</li><li>Annex 7, Part A amended to conform with Tire and Rim Association specifications for code designated diagonal tyres with speed symbol A8.</li></ol>

GRRF/2018/7 | Proposal for amendments to Regulation No. 106 Proposal to add markings for the inflation pressure to be used for measurements and tests.

33. The expert from France presented ECE/TRANS/WP.29/GRRF/2018/9, aimed at harmonizing the definitions and provisions in Regulation No. 109 with those introduced in UN Regulations Nos. 30, 54 and 117. The expert from ETRTO introduced GRRF-86-24, proposing amendment to this proposal. GRRF adopted the proposal as amended by Annex VI (of the session report) and requested the secretariat to submit it as draft supplement 9 (note: corrected by GAR from Supplement 4 in the published report.) to UN Regulation No. 109. GRRF requested the secretariat to address corrections to the French version of the document suggested by the expert from France.

GRRF-86-24 | UN R109: Proposal for amendments Pursuant to Supplement 21 to UN R54 replacing PSI with kPa to indicate tyre inflation pressures, UN R109 requires updating. This proposal would allow both markings under UN R109 because the life cycle of the carcasses spans several years.

GRRF/2018/9 | Proposal for amendments to UN Regulation No. 109 In order to have a Regulation on the retreaded tyres with definitions and provisions structured in the same way of those previously introduced in amendments of "new tyres" Regulations, this amendment:<ol class="alpha"><li>Indicates that for the purpose of this Regulation "tyres" means "pneumatic tyres", so all the text has been reviewed</li><li>Introduces a definition of :<ul><li>"retreader” copy based on that “manufacturer" in the tyres regulations</li><li>Brand name", "Trademark", "Trade description" and "Commercial name" as defined in the tyre regulations</li><li>Material manufacturer / material supplier</li></ul></li><li>Takes into account the rounding rules (already approved in the other tyre regulations) for the calculation of width and diameter of the tyres</li><li>Aligns the title and the provisions of the para. 12 related to the names and addresses of Technical Services, Approved Laboratories and administrative Department with their equivalent in the tyres regulations </li></ol>

34. The expert from BIPAVER introduced ECE/TRANS/WP.29/GRRF/2018/8 with similar provisions as those in ECE/TRANS/WP.29/GRRF/2018/9 and proposed as amendments to UN Regulation No. 108. GRRF adopted the proposal as amended by Annex IV (of this report) and requested the secretariat to submit it as draft Supplement 4 (corrected by GAR from Supplement 9 in the published session report.) to UN Regulation No. 108 for consideration and vote by WP.29 and AC.1 at their June 2018 sessions.

GRRF/2018/8 | Proposal for amendments to Regulation No. 108 Proposal to introduce provisions for the approval of retreaded tyres marked with the alpine symbol ("3PMSF" or "snowflake symbol").

35. The Chair recalled that GRRF already supported ECE/TRANS/WP.29/GRRF/2016/42 and ECE/TRANS/WP29/GRRF/2017/7 with editorial corrections and that these documents were kept on the agenda, awaiting substantive proposals to be considered at the coming session.

36. GRRF agreed to keep both documents on the agenda for its September 2018 session.

GRRF/2016/42 | Proposal for Supplement 10 to the 02 series of amendments to Regulation No. 117 Proposal to correct the text where the word "tyres" was inadvertently omitted from Paragraph 2.1.

GRRF/2017/7 | Proposal for Corrigendum to Regulation No. 117 Proposal to correct a type in Annex 7- Appendix 2, Part 2, Paragraph 5 where the snow group index should read "1.00", not "100" as appeared erroneously in the adopted text.

37. The Chair recalled that GRRF already supported ECE/TRANS/WP.29/GRRF/2016/43 with editorial corrections and that this document was kept on the agenda, awaiting substantive proposals to be considered at the coming sessions.

38. GRRF agreed to keep this document on the agenda for its February 2018 session.

GRRF/2016/43 | Proposal for amendments to the draft Regulation on Tyre Installation Proposal for minor editorial corrections to the text.

39. The expert from OICA introduced GRRF-86-17 containing the field study report on the Tyre Pressure Monitoring System (TPMS) fitment and tyre inflation pressure which was mentioned in GRRF-86-33 presented at the eighty-fourth session of GRRF.

GRRF-86-17 | TPMS Fitment and Tyre Inflation Pressures Field Study 2016/2017 A field study on tyre inflation pressures and TPMS fitment on passenger cars carried out in Sweden, Germany and Spain between November 2016 and August 2017. The study is the first of its kind worldwide covering all types of TPMS and taking into account the specific tyre inflation pressure recommendations for cold tyres as well as the actual tyre temperatures at the time of measurement.

40. No intervention was made under this agenda item.

41. The expert from Germany presented GRRF-86-09 with possible scenarios for developing snow tyre provisions for all tyres and vehicles categories as it is already existing for snow tyres of category C1, C2 and C3 for vehicles categories M and N. GRRF supported the scenario 2 proposed in the document and invited the expert from Germany and other interested experts to prepare snow tyre provisions according to this scenario.

GRRF-86-09 | Snow tyres provisions - status report Possible scenarios for developing regulatory provisions for snow tyres under UN tyre regulations.

42. No intervention was made under this agenda item.

43. GRRF discussed this agenda item together with item 9(b).

44. The secretariat invited GRRF experts to attend the 2018 symposium on the Future Networked Car co-organized by UNECE and the International Telecommunication Union (ITU).

45. The expert from UK introduced ECE/TRANS/WP.29/GRRF/2018/10, proposing to include provisions applicable for Remote Control Manoeuvring (RCM) in UN Regulation No. 79. GRRF welcomed the proposal, noting that some vehicles were already delivered with this feature. GRRF agreed to insert provisions on RCM in UN Regulation No. 79. The proposal received a number of comments from Contracting Parties and from OICA, as reflected in GRRF-86-15.

46. The expert from UK volunteered to submit a revised proposal for consideration at the September 2018 session of GRRF and invited interested experts to contribute to this work stream.

GRRF-86-15 | UN R79: Proposal for amendments to GRRF/2018/10 Proposal of amendments to the proposal to introduce provisions for the approval of Remote Control Manoeuvring (RCM) systems, defined as driver-actuated systems on off-road vehicles used for navigating exceptionally difficult terrain. OICA seeks to cover remote control applications for low speed manoeuvring not addressed in the original UK proposal.

GRRF/2018/10 | Proposal for a Supplement to Regulation No. 79 Proposal to introduce provisions for the approval of Remote Control Manoeuvring (RCM) systems, defined as driver-actuated systems on off-road vehicles used for navigating exceptionally difficult terrain. This proposal seeks to permit remote manoeuvring capability provided that the vehicle is designed to operate off-road and the off-road location is confirmed throughout the whole period that the function is in use.

47. The expert from Japan, on behalf of the Co-Chairs of the IWG on Automatically Commanded Steering Function (ACSF), reported on the outcome of the sixteenth session of IWG on Automatically Commanded Steering Function (ACSF) held on 23-25 January 2018 in Japan (GRRF-86-20-Rev.1). He explained that the group sought for guidance from GRRF on the proper way to address ACSF of Categories B2 and [C2]. GRRF agreed that the Category B2 shall be considered in the context of SAE level 3 or 4 as a first priority. GRRF recognised the interest from industry on an additional option for Category C (C2) and noted that the industry may work separately on this. The expert from Japan stated that, as a second priority, GRRF could also develop provisions for ACSF of Category B2 in the context of SAE level 2. GRRF reviewed in detail the presentation and provided recommendations to the IWG on ACSF on the basis of GRRF-86-20-Rev.1 as reflected in GRRF-86-36. Noting the ambitious deadline for the group and the number of tasks, GRRF’s recommendations included among others the establishment of tasks forces that would work through Web Conferencing in order to make progress before the next session of the IWG on ACSF scheduled in April 2018. GRRF also identified bodies that could develop provisions on transversal issues, not necessarily in the remit of GRRF under the current mandate. GRRF agreed that its Chair would consult GRSG on regulatory activities for Data Storage Systems for Automated Driving (DSSAD).

GRRF-86-20/Rev.1 | Status report of the ACSF informal group

GRRF-86-36 | ACSF: GRRF recommendations for further work Changes and notes made to the ACSF informal group status report as part of the GRRF discussion on how to deliver approval requirements for ACSF B2 (lane-keeping at Level 3 automation) within the prescribed mandate of the group. The ACSF group is expect to deliver a draft text within the next nine months.

48. The expert from Germany presented GRRF-86-13 tabled by the experts from Germany and from the Republic of Korea with a proposal for amendments to the ACSF testing provisions in Annex 8 of UN Regulation No. 79, based on the first experience gathered since the 02 series of amendments of UN Regulation No. 79 entered into force. GRRF welcomed the proposal and provided comments. The experts from Germany and the Republic of Korea volunteered to prepare a revised proposal aimed to avoid prescriptive requirements on the measurement instruments and providing more detailed justification e.g. on the sample rate and the filtering of the lateral acceleration data.

GRRF-86-13 | UN R79: Proposal for amendments Proposal from Germany and the Republic of Korea to resolve measurement concerns in the test requirements for ACSF of Category B1 and C. The proposal addresses issues identified in Annex 8, improves reproducibility and robustness of the procedures, fills in gaps in the test cases, and provides additional details on measuring equipment and test execution.

49. The expert from OICA reported on ongoing activities at ISO on the development of ISO 11992.

50. GRRF discussed this agenda item together with item 9(b) – see GRRF-86-36.

51. The GRRF Ambassador to the IWG on International Whole Vehicle Type Approval (IWVTA) provided a status report of the activities of the IWG (GRRF-86-38) informing GRRF among others about the adoption of UN Regulation No. 0 by AC.1 at the November 2017 session.

GRRF-86-38 | IWVTA: Status report to GRRF

52. The secretariat informed GRRF about potential follow-up activities related to the entry into force of Revision 3 to the 1958 Agreement and the adoption of UN Regulation No. 0. He drew attention of GRRF to (a) the adopted guidelines related to the drafting of Transitional Provisions, (b) the possibility to insert provisions in UN Regulations preventing the use of the Unique Identifier as defined in the Agreement, © the discussion of the IWG on IWVTA on the new approval numbering in Schedule 4 potentially in conflict with marking provisions in Tyre regulations and in UN Regulation No. 90 (see GRRF-86-37), (d) the maintenance of Annex 4 in UN Regulation No. 0, (e) the update of the standard provisions related to the Conformity of Production still referring to Revision 2 of the 1958 Agreement.

GRRF-86-37 | UN R90: Presentation highlighting cost concerns with the new 1958 Agreement approval numbering system CLEPA presentation on the type approval process for replacement brake pads, linings, and drums and the impact of the new approval numbering system adopted under Revision 3 to the 1958 Agreement on approvals and markings of these products.

53. The expert from CLEPA introduced GRRF-86-37, providing detailed information on the identification of a consistency issue between the provisions related to approval numbers according to UN Regulation No. 90 and those in Schedule 4 to the 1958 Agreement. GRRF requested the secretariat to submit this presentation to the IWG on IWVTA.

GRRF-86-37 | UN R90: Presentation highlighting cost concerns with the new 1958 Agreement approval numbering system CLEPA presentation on the type approval process for replacement brake pads, linings, and drums and the impact of the new approval numbering system adopted under Revision 3 to the 1958 Agreement on approvals and markings of these products.

54. GRRF did not receive any new document to be discussed under this agenda item.

55. The secretariat introduced GRRF-86-07, reporting on the GRRF relevant highlights of the 173rd session of WP.29. For more information, please refer to the session report (ECE/TRANS/WP.29/1135).

GRRF-86-07 | GRRF highlights from the November 2017 WP.29 session

56. The expert from OICA introduced GRRF-86-14 with provisions on the warning activation condition, in case of the system deactivation by the driver as well as a verification simplification of the throttle control action during testing. GRRF adopted the proposal as reproduced in Annex VII. GRRF requested to submit it together with ECE/TRANS/WP.29/GRRF/2013/13 as draft Supplement 3 to UN Regulation No. 89 to WP.29 and AC.1 for consideration and vote at their June 2018 sessions.

GRRF-86-14 | UN R89: Proposal for Supplement 3 Revised proposal from OICA pursuant to comments received during the previous GRRF session to<ol class='alpha'><li>exempt cases where the driver has temporarily deactivated the speed limiter from the warning requirement for excess speed in in order to reduce driver distraction</li><li>introduce throttle control via adjustment of the accelerator pedal position</li><li>to correct an editorial error in paras. 5.2.5.4.2. and 21.2.5.4.2.</li></ol>

57. The expert from the Russian Federation introduced GRRF-86-19, inviting delegates to confirm the type of speed limitation systems requested for vehicles type approved for the transport of dangerous goods as specified in the European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR). GRRF confirmed that a vehicle equipped with a Speed Limitation Function would be in compliance with ADR Section 9.2.5 similarly to a vehicle equipped with a Speed Limitation Device.

GRRF-86-19 | UN R89: Implementation under the European Agreement on ADR The European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR) requires vehicles to be equipped with a speed limitation device compliant with UN R89. UN R89 refers to speed limitation devices (SLD) and speed limitation functions (SLR) (i.e., aims to be technologically neutral). Russia requests GRRF confirmation that compliance with UN R89 can be achieved through either an SLD or SLF.

58. The expert from Norway presented GRRF-86-30, reporting on the investigation of road crashes that involved trucks with potential issues related to the mechanical failure of the steering gear. GRRF invited its experts to review crash data available and agreed to further discuss this issue at its September 2018 session.

GRRF-86-30 | UN R79: Protection of steering gear in a collision Norwegian request for GRRF comments on protection of steering gear and attachment to heavy vehicle frames. In a collision in Norway, the steering gear detached from the vehicle frame following a frontal collision such that the driver could no longer control the vehicle. Norway seeks input on strengthening the protection of steering gear in order to avoid such a situation.

59. GRRF learned that Jochen Schaefer (Bosch, CLEPA) would no longer attend the sessions of GRRF as he would enter the passive phase of his partial retirement agreement with his employer. GRRF congratulated him for his outstanding contributions to GRRF and wished him all the best for his future retirement.

GRRF-86-19 | UN R89: Implementation under the European Agreement on ADR The European Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR) requires vehicles to be equipped with a speed limitation device compliant with UN R89. UN R89 refers to speed limitation devices (SLD) and speed limitation functions (SLR) (i.e., aims to be technologically neutral). Russia requests GRRF confirmation that compliance with UN R89 can be achieved through either an SLD or SLF.