1. The Working Party on Brakes and Running Gear (GRRF) held its eighty-third session from 23 to 27 January 2017 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(a) of the Rules of Procedure of the World Forum for Harmonization of Vehicle Regulations (WP.29) (TRANS/WP.29/690, ECE/TRANS/WP.29/690/Amend.1 and Amend. 2): Belgium, Canada, China, Czech Republic, Denmark, Finland, France, Germany, Hungary, India, Italy, Japan, the Netherlands, Norway, Poland, Russian Federation, Republic of Korea, Slovakia, South Africa, Spain, Sweden, Switzerland and the United Kingdom of Great Britain and Northern Ireland (UK). An expert from the European Commission (EC) also participated. Experts from the following non-governmental organizations (NGOs) participated: 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 and the secretariat, the following NGOs participated: Imported Tyre Manufacturers Association (ITMA) and the Recreational Vehicle Industry Association (RVIA).

2. GRRF considered the agenda prepared for the eighty-third session and adopted it (ECE/TRANS/WP.29/GRRF/2017/1) as updated and reproduced in GRRF-83-02, including all informal documents received until the session’s starting date.

3. GRRF also adopted the running order for the session as proposed in GRRF-83-01. The informal documents distributed during the session are listed in Annex I of this report.

4. The secretariat introduced GRRF-83-03, announcing that the next GRRF session would take place on 19-22 September 2017 and recalling that the deadline for the submission of official documents would be 26 June 2017.

GRRF-83-01 | Running order of the agenda for the 83rd GRRF session

GRRF-83-02 | Updated and consolidated agenda of the 83rd GRRF session

GRRF/2017/1 | Annotated provisional agenda for the 83rd 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 imposes the review of the target speed in cell H2 before 1 November 2021.

6. The expert from Japan introduced GRRF-83-17 (relevant for agenda item 2 as well as item 11) proposing to extend the scope of Regulation No. 131 (Advanced Emergency Braking Systems (AEBS)) to vehicles of category M1 and N1. He proposed to introduce in a new 02 series of amendments provisions regarding the performance of AEBS for vehicles of category M1 and N1 and to introduce in a new 03 series of amendments provisions addressing the performance of such systems for those vehicle categories and the detection of pedestrians. He introduced GRRF-83-18 proposing terms of reference for the Informal Working Group (IWG) on AEBS. The expert from OICA noted the challenging timeline proposed.

7. GRRF supported the proposal made by the expert from Japan and endorsed the draft Terms of Reference proposed for the IWG on AEBS as reproduced in Annex II of the session report.

GRRF-83-17 | Proposal for UN Regulation on AEBS for M1/N1 Proposal to extend the scope of UN R131 to include light vehicles in line with priorities in Japan, the EU, and USA with regard to the installation of AEB systems on passenger cars and light trucks.

GRRF-83-18 | Proposal of Terms of Reference for an informal group on AEBS for M1/N1 vehicles Proposal to authorize the establishment of an expert group to draft test procedures and performance requirements for M1/N1 with regard to automatic emergency braking, including stationary and moving obstacles, and for pedestrian AEBS.

8. The expert from OICA introduced GRRF-83-22, proposing clarifications to the provisions related to the stability control optical warning in Regulations No. 13, 13-H and 140. He explained that, to date, braking regulations explicitly permitted the use of the Electronic Stability Control (ESC) flashing symbol for the purpose of showing interventions of systems related to the vehicle stability function (e.g. traction control etc.). He added that with the proposed clarification, it would be clarified that the use of the ESC flashing symbol would be permitted for indicating the intervention of individual steering control for vehicle stability such as Corrective Steering Functions, if related to the vehicle stability function.

9. GRRF agreed to resume consideration of this document while reviewing the proposal on Automatically Commanded Steering Function (ACSF) under agenda item 9.

GRRF-83-22 | Proposal for amendments to Regulation No. 13-H Supplement 16 to 00 series of amendments, Regulation No. 13 Supplement 14 to 11 series of amendments and Regulation No. 140 original version Proposal to amend provisions on electronic stability control warnings under braking regulations to allow for activation of the ESC visual warning during a stability-assistance intervention of an electronic steering control. The aim is to avoid separate requirements for brake-actuated and steering-actuated stability assistance that would lead to two visual warnings where only one is appropriate.

GRRF-83-22/Rev.1 | Revised proposal for amendments to Regulation No. 13-H Supplement 16 to 00 series of amendments, Regulation No. 13 Supplement 14 to 11 series of amendments and Regulation No. 140 original version Revised proposal pursuant to GRRF discussions to enable activation of the ESC optical symbol in cases of a corrective steering function intervention when the CSF intervention is activated under the control of an ESC system. The aim is to avoid separate requirements for brake-actuated and steering-actuated vehicle stability functions (VSF) that would lead to two optical warnings where only one is appropriate.

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

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).

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 the Netherlands introduced ECE/TRANS/WP.29/GRRF/2017/2 proposing to delete an obsolete provision in Annex 5 to Regulation No. 13. He recalled the context of this proposal, originally suggested by the expert from the Netherlands the ninety-nine session of the Working Party on the Transport of Dangerous Goods (WP.15) and considered at the 168th session of WP.29 (WP.29-168-16). He added that this proposal took into consideration the comments received at the previous session of GRRF (see ECE/TRANS/WP29/GRRF/82, para. 11).

13. GRRF adopted the proposal and requested the secretariat to keep it on the agenda for the next session.

GRRF/2017/2 | Proposal for an amendment of Regulation No. 13 Proposal to delete a redundant requirement. The paragraphs 2.2. and 2.2.1. are superfluous since paragraph 5.2.2.13. already requires all O4 trailers to be equipped with Anti-lock Braking Systems (ABS) of Category A.

WP.29-168-16 | Proposal from WP.15 to amend Regulation No. 13 Proposal from the Working Party on Dangerous Goods to delete paragraph 2.2.1 and 2.3.2 in Annex 5 of Regulation No. 13 permitting the use of an endurance braking system on a trailer to compensate for insufficient performance of the endurance braking system of the motor vehicles. Such systems have been prohibited by WP.15 such that alignment of the vehicle technical requirements is needed.

14. The expert from CLEPA presented ECE/TRANS/WP.29/GRRF/2016/27, as amended by GRRF-82-03. Following discussions, the experts from the European Commission and from CLEPA presented GRRF-83-31. GRRF agreed to resume consideration of this subject and requested the secretariat to distribute this informal document with an official symbol at its September 2017 session.

GRRF-82-03 | Proposal for amendments to Regulations No. 13 UN R13 allows for the exemption of certain vehicles from the requirement for electronic stability controls. This proposal seeks to clarify the scope of the exemptions to include any special purpose vehicle with a non-standard chassis. The change was prompted by a modified vehicle where use of ESC was not feasible, but where the current UN R13 language left doubt as to whether the ESC requirement was applicable. This revised proposal takes into account comments received during the February 2016 GRRF session.

GRRF-83-31 | Proposal for amendments to Footnote 12 in Regulation No. 13 UN R13 allows for the exemption of certain vehicles from the requirement for electronic stability controls (footnote 12). This proposal (following proposals GRRF/2016/27 and GRRF-82-03) seeks to clarify the scope of the exemptions to include any special purpose vehicle with a non-standard chassis. The change was prompted by a modified vehicle where use of ESC was not feasible, but where the current UN R13 language left doubt as to whether the ESC requirement was applicable.

GRRF/2016/27 | Proposal for amendments to Regulation No. 13 UN R13 allows for the exemption of certain vehicles from the requirement for electronic stability controls. This proposal seeks to clarify the scope of the exemptions to include any special purpose vehicle with a non-standard chassis. The change was prompted by a modified vehicle where use of ESC was not feasible, but where the current UN R13 language left doubt as to whether the ESC requirement was applicable. This revised proposal takes into account comments received during the February 2016 GRRF session.

15. The expert from Germany presented GRRF-83-07 based on ECE/TRANS/WP29/GRRF/2016/26, originally tabled by the expert from France. GRRF noted that the proposed amendment to para. 2.2.18. in Annex 12 already existed and the wording proposed could be clarified. GRRF agreed to resume consideration of this proposal on the basis of an official working document that the experts from Germany and France volunteered to prepare.

GRRF-83-07 | Proposal for amendments to Regulation No. 13, Annex 12 Proposal to simplify the verification of sufficient movement on the balancer (of the compensator) without having to take measurements underneath the trailer in an potentially unsecured position and to correct the text of Annex 12 (Conditions governing the testing of vehicles equipped with inertia (overrun) braking systems). Intention to provide an objective calculation method as part of setting requirements for permissible "differential travel" or swivel.

GRRF/2016/26 | Proposal for amendments to Regulation No. 13 Proposal to clarify paragraph 8.1.2. The paragraph aimed to verify that the compensator can accept a difference of the travel when one brake operates in forward direction and the other in rearward direction with a margin of twenty per cent.

16. GRRF did not receive any new proposal to amend Regulation No. 121 or relevant new information from the Working Party on General Safety provisions (GRSG).

17. No intervention was made under this agenda item.

18. The Secretary of the IWG on Regulation No. 55 presented (GRRF-83-06) a consolidated proposal (ECE/TRANS/WP.29/GRRF/2017/3) based on the proposals presented at the previous session of GRRF and addressing the comments received.

19. GRRF adopted the proposal [after correcting an equation in Annex 8, para. 3.4., Clevis Coupling D formulae] and requested the secretariat to submit it as part of the draft Supplement 7 to the 01 series of amendments to Regulation No. 55 (Mechanical coupling) to WP.29 and AC.1 for consideration and vote at their June 2017 sessions.

GRRF-83-06/Rev.1 | Comments on the proposal of the Revision of UN R55 informal group to GRRF Presentation to explain the rational behind the proposal of a new Annex 8 to the R55 introduced in the working document GRRF/2017/03.

GRRF/2017/3 | Proposal for amendments to Regulation No. 55 UN R55 informal group proposal for:<ol class="alpha"><li>An amendment for the separation of the procedures to verify towable mass from the procedure of setting and certifying performance values;</li><li>An amendment that adds procedures to verify towable mass for vehicle combinations that have hitherto not been accounted for in the Regulation;</li><li>Amendments that adds integrated fixing points for secondary couplings;</li><li>An amendment that clarifies the procedure to identify worst cases for certification testing;</li><li>Amendments that removes typos in the current Regulation.</li></ol><i>Please note that, under paragraph 3.4 regarding "Combination 4", the Clevis coupling formula should read "D_C" rather than "D" as shown.</i>

20. The Chair of GRRF recalled the purpose of ECE/TRANS/WP.29/GRRF/2016/32, aimed at imposing a new general constraint for granting component type-approval for mechanical coupling devices dedicated to category M1 vehicles only if the vehicle type is designed to tow trailers. An ad hoc group of experts proposed an alternative wording, in GRRF-83-25-Rev.1.

21. GRRF adopted the proposal as reproduced in Annex III and requested the secretariat to submit it as part of the Supplement 7 to the 01 series of amendments to Regulation No. 55 (Mechanical coupling) to WP.29 and AC.1 for consideration and vote at their June 2017 sessions.

GRRF-83-25 | Proposal for amendments to Regulation No. 55 Proposed addition, based on document GRRF/2016/32, to the package of amendments developed by the informal working group on UN R55 (document GRRF/2017/3). The proposal aims to make clear to Technical Services and Authorities that in cases where no values for the maximum permissible towing vehicle and trailer masses and the maximum permissible static vertical imposed load on the tow ball are declared by a vehicle manufacturer or where the declared maximum vertical value is zero, approval shall be refused.

GRRF-83-25/Rev.1 | Proposal for amendments to Regulation No. 55 Addition, based on document GRRF/2016/32, to the package of amendments developed by the informal working group on UN R55 (document GRRF/2017/3). The proposal aims to make clear to Technical Services and Authorities that in cases where no values for the maximum permissible towing vehicle and trailer masses and the maximum permissible static vertical imposed load on the tow device are declared by a vehicle manufacturer or where the declared maximum vertical value is zero, approval shall be refused.

GRRF/2016/32 | Proposal for an amendment to Regulation No. 55 Proposal to restrict component type-approval for mechanical coupling devices dedicated to category M1 vehicles to use only on such M1 vehicles as are designed to tow trailers.

22. No progress was reported on the activities of the IWG on the Agricultural Coupling Devices and Components (ACDC).

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

24. The expert from Italy introduced GRRF-83-09 proposing to insert in Global Technical Regulation (GTR) No. 3 (Motorcycle braking) provisions on tri-cycles Anti-lock Braking Systems (ABS), Emergency Stop Signal and means to disable the ABS function (‘ABS switch’) prepared in collaboration with the expert from IMMA. He informed GRRF on the related discussion at the Executive Committee AC.3 in November 2016 that agreed in principle with the proposal to align GTR No. 3 and Regulation No. 78. The expert from Canada answered to the proposal (GRRF-83-10). The GRRF agreed to resume consideration of these proposals on the basis of an official working document that the experts from Canada and Italy volunteered to prepare.

GRRF-83-09 | Proposal for Amend. [3] to GTR No. 3 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.

GRRF-83-10 | Proposal for amendments to GRRF-83-09 on amending GTR No. 3 Proposal to delete passages under paragraph 3.1.15.2. referring to the “prediction of the vehicle deceleration” since no method for doing so is described in the regulation. Moreover, in a self-certification system, the requirement would have to be met for the actual vehicle deceleration. The proposal also substitutes switching between ABS modes for the terms "disable" and "deactivate" for greater clarity. Lastly, the proposal recommends the use of a clearly specified telltale design to signal the ABS operating status rather than to leave this function open to “…any other equivalent unequivocal indication of the disabled antilock brake system state.”

25. The expert from Spain reported on behalf of the Special Interest Group (SIG) on Regulation No. 90 on the outcome of the group following two meetings (GRRF-83-26). He mentioned that the group of experts considered a list of issues for future consideration. He added that the group already reached a common understanding about the type definition interpretation of replacement parts. He concluded that a final report would be delivered at the September 2017 session of GRRF, with a potential recommendation for the establishment of an informal working group on Regulation No. 90 (and corresponding draft terms of reference), if the experts would conclude that it is necessary. He announced that the next meeting of the SIG would be organized in April 2017 and requested that the secretariat circulate an invitation by email.

26. The experts from OICA and CLEPA expressed concerns with elements of the presentation of the expert from Spain. The Chair of GRRF noted the number of items for consideration and advised the group of experts to define priorities and to separate the work that would cause an extension of scope of the Regulation e.g. replacement calipers.

27. The expert from Spain recalled the discussion that took place at the seventy-fifth session of GRRF (ECE/TRANS/WP.29/GRRF/75, para. 49) and that was related to safety issues on proving grounds or on public roads linked to braking tests. He proposed to resume consideration of this issue at the next session of GRRF.

GRRF-83-26 | Status report of the special interest group on UN R90 Update on the ad hoc group discussing how to clarify UN R90 with regard to replacement brake components, including discussions on the merits of extending the scope to brake calipers which also relates to discussions on remanufactured components.

28. The expert from the Russian Federation, chairing the group briefly reported on the work done by the IWG on Tyres on the development of draft Amendment 2 of the GTR No. 16 (Tyres). He confirmed that no modifications were proposed to the Terms of Reference WP.29-170-12. GRRF adopted the Terms of Reference previously endorsed, as reproduced in Annex IV. He invited the expert from ETRTO as the Secretary of the group to provide to GRRF a detailed progress report (GRRF-83-32). He invited all interested experts to contribute to the work and informed GRRF that the next session of the group would take place in Moscow.

GRRF-83-32 | Progress report of the Tyre GTR informal group

29. The expert from China introduced its working paper of the informal working group (TYREGTR-15-06) with a list of harmonization challenges and also proposals to facilitate the adoption of the Phase 2 by China. The Chair invited the expert from China to present these challenges at the March 2017 session of AC.3.

TYREGTR-15-06 | China comments on the second phase harmonization of GTR No. 16 (Tires)

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

31. The Chair recalled that GRRF already supported GRRF-82-23 together with ECE/TRANS/WP.29/GRRF/2016/35 as well as ECE/TRANS/WP.29/GRRF/2016/36 and that these documents were kept on the agenda, awaiting a proposal to be considered at this session.

GRRF-82-23 | Revised proposal for Supplement 22 to the 00 series of amendments to Regulation No. 54 Revised proposal to correct the paragraph numbering pursuant to the adoption of Supplement 21 and delete a redundant note at the end of paragraph 6.1.5.3.3, based on document GRRF/2016/35.

GRRF/2016/35 | Proposal for Supplement 22 to the 00 series of amendments to Regulation No. 54 Correction of the paragraph numbering pursuant to the adoption of Supplement 21 and deletion of a redundant note at the end of paragraph 6.1.5.3.3.

GRRF/2016/36 | Proposal for amendments to Regulation No. 54 Proposal to clarify the minimum heights for markings for tyres with nominal rim diameter codes ≥ 20 and nominal section width ≤ 235 and for tyres with nominal rim diameter codes < 20 and nominal section width > 235. In addition, the proposal corrects the use of uppercase letters to denote dimensions where lowercase letters had been inserted.

32. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2017/4 proposing the introduction of new tyre sizes in Annex 5 to Regulation No. 54.

GRRF/2017/4 | Proposal for amendments to Regulation No. 54 Proposal to add specifications for tyre sizes 33x11.50R20LT, 35x11.50R17LT, 37x13.50R26LT, 36x15.50R20LT and 40x15.50R26LT.

33. GRRF adopted ECE/TRANS/WP.29/GRRF/2016/35 as amended by Annex VII, ECE/TRANS/WP.29/GRRF/2016/36 and ECE/TRANS/WP.29/GRRF/2017/4. GRRF requested the secretariat to submit them as draft Supplement 22 to Regulation No. 54 (Tyres for commercial vehicles and their trailers) to WP.29 and AC.1 for consideration and vote at their June 2017 sessions.

GRRF-82-23 | Revised proposal for Supplement 22 to the 00 series of amendments to Regulation No. 54 Revised proposal to correct the paragraph numbering pursuant to the adoption of Supplement 21 and delete a redundant note at the end of paragraph 6.1.5.3.3, based on document GRRF/2016/35.

GRRF/2016/35 | Proposal for Supplement 22 to the 00 series of amendments to Regulation No. 54 Correction of the paragraph numbering pursuant to the adoption of Supplement 21 and deletion of a redundant note at the end of paragraph 6.1.5.3.3.

GRRF/2016/36 | Proposal for amendments to Regulation No. 54 Proposal to clarify the minimum heights for markings for tyres with nominal rim diameter codes ≥ 20 and nominal section width ≤ 235 and for tyres with nominal rim diameter codes < 20 and nominal section width > 235. In addition, the proposal corrects the use of uppercase letters to denote dimensions where lowercase letters had been inserted.

GRRF/2017/4 | Proposal for amendments to Regulation No. 54 Proposal to add specifications for tyre sizes 33x11.50R20LT, 35x11.50R17LT, 37x13.50R26LT, 36x15.50R20LT and 40x15.50R26LT.

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

35. The Chair recalled that GRRF already supported ECE/TRANS/WP.29/GRRF/2016/39 and that this document was kept on the agenda, awaiting other proposals to be considered at this session.

GRRF/2016/39 | Proposal for amendments to Regulation No. 106 Proposal to amend Annex 5 with regard to Improved Flexion (IF) tyres and Very high Flexion (VF) tyres.

36. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2017/5 and ECE/TRANS/WP.29/GRRF/2017/6 as amended by GRRF-83-11 and GRRF-83-12, proposing to introduce new tyres size usually listed in Annex 5 in a new Resolution, aimed at simplifying the update of this annex as well as reducing the number of amendments. GRRF noted that Annex 5 was containing non-metric tyre sizes not in line with the general formulae contained in the Regulation; therefore, GRRF wondered whether the right approach would be to introduce the appropriate formulae in the Regulation instead of continuously updating Annex 5. The expert from ETRTO agreed to address this proposal and to submit, if suitable, revised proposals for consideration at the next session.

GRRF-83-11 | Proposal for amendments to document GRRF/2017/5 Revised version of the proposal to include UN R106 tyre dimensions in a Mutual Resolution on tyre sizes. The amendment to the table listing the allowed nominal rim diameters (d) is needed to allow the approval of standardized sizes which exist and are already on the waiting list for type approval.

GRRF-83-12 | Proposal for amendments to ECE/TRANS/WP.29/GRRF/2017/6 Revised proposal for a "Mutual Resolution on dimensions of tyres of certain size designations".

GRRF/2017/5 | Proposal for amendments to Regulation No. 106 Regulation No. 106 contains standardized tyre sizes, which often need to be updated, following the technical progress. In order to accelerate the update process of the Regulation and limit the number of amendments, it is proposed to insert in a new Resolution the standardized sizes and to refer to this Resolution in Annex 5. As a temporary solution to assess the effectiveness of such proposal, the Annex 5 of Regulation No. 106 will be kept as it is with no further updates. After a trial period of approximately two years and upon confirmation of effectiveness, the complete Annex 5 of Regulation No. 106 would be transferred to this Resolution on Tyre Sizes.

GRRF/2017/6 | Proposal for a new Resolution on Tyre Sizes Regulation No. 106 contains standardized tyre sizes which often need to be updated in line with technological progress. In order to accelerate the update process of the Regulation and limit the number of amendments, it is proposed to insert in a new Resolution the newly standardized sizes and to refer to this Resolution in Annex 5. As a temporary solution to assess the effectiveness of such proposal, the Annex 5 of Regulation No. 106 will be kept as it is with no further updates. After a trial period of approximately two years and upon confirmation of effectiveness, the complete Annex 5 of Regulation No. 106 would be transferred to this Resolution on Tyre Sizes.

37. The expert from ETRTO presented GRRF-83-15 with new tyres sizes to be included in Annex 5. GRRF adopted the proposal.

GRRF-83-15 | Proposal for amendments to Regulation No. 106 Proposal to add tyre and rim dimensions and to add a diameter code 'd' of 28.5 <i>(Please note that the "28.5.5" shown in the table is a typo and should be "28.5").</i>

38. The expert from ETRTO presented a revised proposal ECE/TRANS/WP.29/GRRF/2017/9 with provisions which were already supported at the last session. He introduced the revised transitional provisions related to new marking requirements. The experts from EC and UK proposed an alternative wording (GRRF-83-14). Both proposals received several comments. Therefore GRRF agreed to adopt the agreed provisions that would not be subject to transitional provisions and to remove the others, as reproduced in GRRF-83-23.

GRRF-83-14 | Proposal for amendments to document GRRF/2017/9 Proposal to amend the transitional provisions of the formal proposal to update UN R106 (GRRF/2017/9).

GRRF-83-23 | Amendments to ECE/TRANS/WP.29/GRRF/2017/9 Amendment, per GRRF discussions, to remove the proposal to require the use of kPa markings and the related transitional provisions from the broader set of amendments to UN R106 proposed in document GRRF/2017/9.

GRRF/2017/9 | Proposal for amendments to Regulation No. 106 Proposal to:<ol class="alpha"><li>Align definitions and contents of paragraphs with the other tyre regulations (UN R30, R54, R117, etc.);</li><li>Include a definition of "Manufacturer" extracted from the resolution "R.E.3";</li><li>Adopt a common definition and use of the terms "Manufacturer’s name"," Brand name", "Trademark", "Trade description" and "Commercial name" and their links;<li>Clarify which markings shall be moulded on both sidewalls of the tyre; and those which shall be moulded on one sidewall only;</li><li>Add information in the certificate to clarify the relationship with the certified products;</li><li>Align definitions with Regulation EU 167/2013 which defines vehicles in category S as "interchangeable towed equipment" and includes tread patterns for ‘implement traction tyres’ that consist of blocks rather than lugs or cleats;</li><li>Eliminate redundant marking requirements with the requirement for "@kPa" markings effective from 1 September 2017;</li><li>Clarify the inflation pressure to be used for measurements and tests and related tyre markings;</li><li>Align the current rules for calculating the dimensional limits in accordance with ISO, all major tyre standards, and as proposed for UN R30, R54, and R75;</li></ol>

39. GRRF requested the secretariat to submit the adopted proposals ECE/TRANS/WP.29/GRRF/2017/9 amended by Annex VI (based on GRRF-83-23 and GRRF-83-15) as well as ECE/TRANS/WP.29/GRRF/2016/39 as draft Supplement 15 to Regulation No. 106 (Agricultural tyres) to WP.29 and AC.1 for consideration and vote at their June 2017 sessions.

GRRF-83-15 | Proposal for amendments to Regulation No. 106 Proposal to add tyre and rim dimensions and to add a diameter code 'd' of 28.5 <i>(Please note that the "28.5.5" shown in the table is a typo and should be "28.5").</i>

GRRF-83-23 | Amendments to ECE/TRANS/WP.29/GRRF/2017/9 Amendment, per GRRF discussions, to remove the proposal to require the use of kPa markings and the related transitional provisions from the broader set of amendments to UN R106 proposed in document GRRF/2017/9.

GRRF/2016/39 | Proposal for amendments to Regulation No. 106 Proposal to amend Annex 5 with regard to Improved Flexion (IF) tyres and Very high Flexion (VF) tyres.

GRRF/2017/9 | Proposal for amendments to Regulation No. 106 Proposal to:<ol class="alpha"><li>Align definitions and contents of paragraphs with the other tyre regulations (UN R30, R54, R117, etc.);</li><li>Include a definition of "Manufacturer" extracted from the resolution "R.E.3";</li><li>Adopt a common definition and use of the terms "Manufacturer’s name"," Brand name", "Trademark", "Trade description" and "Commercial name" and their links;<li>Clarify which markings shall be moulded on both sidewalls of the tyre; and those which shall be moulded on one sidewall only;</li><li>Add information in the certificate to clarify the relationship with the certified products;</li><li>Align definitions with Regulation EU 167/2013 which defines vehicles in category S as "interchangeable towed equipment" and includes tread patterns for ‘implement traction tyres’ that consist of blocks rather than lugs or cleats;</li><li>Eliminate redundant marking requirements with the requirement for "@kPa" markings effective from 1 September 2017;</li><li>Clarify the inflation pressure to be used for measurements and tests and related tyre markings;</li><li>Align the current rules for calculating the dimensional limits in accordance with ISO, all major tyre standards, and as proposed for UN R30, R54, and R75;</li></ol>

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

41. The expert from ETRTO presented ECE/TRANS/WP.29/GRRF/2017/7 with editorial corrections. The Chair recalled that GRRF already supported ECE/TRANS/WP.29/GRRF/2016/42 with editorial corrections and that this document was kept on the agenda, awaiting substantive proposals to be considered at the coming session.

42. GRRF agreed to keep both documents on the agenda for its September 2017 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.

43. 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.

44. GRRF agreed to keep this document on the agenda for its September 2017 session.

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

45. 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 session. The expert from EC introduced GRRF-83-13 reporting on testing activities and a report from a European NGO on Tyre Pressure Monitoring Systems (TPMS). The experts reviewed the report. The expert from OICA presented GRRF-83-16 answering to this report. The methodology and the evidences presented in the report were subject to discussion. GRRF noted that a few recommendations (e.g. 1 and 4) concluding the report could be considered.

46. The expert from Denmark invited the GRRF experts to share information on existing road traffic laws and regulations requesting the use of TPMS.

GRRF-83-13 | Regulation on Tyre Pressure Monitoring Systems European Commission note on the publication of a recent <a href="https://www.transportenvironment.org/publications/failure-indirect-tyre-pressure-monitoring-systems-puts-drivers-and-road-users-risk" target="_blank" class="orange">study carried out by the environmental advocacy group Transport & Environment on the performance of indirect TPMS</a>.

GRRF-83-16 | OICA comments on the T&E testing and critique of indirect TPMS OICA presentation on its field study to develop data on TPMS performance and comments on the T&E test procedure for evaluating indirect TPMS. In particular, OICA states that the T&E methods did not represent normal use cases or correspond to the intent of UN R141 to address slow diffusion of air that leads to underinflation.

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

47. The Chair of GRRF, recalling the purpose of GRRF-82-21 collecting the definitions in UN Regulations on tyres invited the expert from ETRTO to report on derived activities. The expert from ETRTO reported that he didn’t receive any feedback on this document. GRRF agreed to keep this document on the agenda of the next session.

GRRF-82-21 | Definitions in regulations dealing with tyres

48. The expert from Germany introduced GRRF-83-05 looking for guidance on the possibility to develop snow tyre provisions for all tyres and vehicles categories as it was already existing for snow tyres of category C1, C2 and C3 for vehicles categories M and N by amending all relevant Regulations or by amending the scope of Regulation No. 117. The expert from Japan and the Russian Federation volunteered to contribute to the work item proposed by Germany. GRRF requested to add an agenda item dedicated to snow tyres on the agenda.

GRRF-83-05 | Tyre category definitions and requirements for tyre use on roads under winter conditions Germany reviews problems with applying UN specifications for the marking of winter tyres, covering disparities in definitions and performance requirements across the tyre regulations (UN R30, R54, R75, R106, R108, R109 and R117). Therefore, Germany proposes that GRRF work to resolve these disparities and offers two possible solutions: 1) Introduce the definition of "Snow tyre for use in severe snow conditions” and the related performance and marking requirements established under UN R109 and R117 into UN R30, R54, R75, R108, and (possibly) R106; 2) Amending UN R117 to extend the scope of its snow performance criteria to additional tyre classes and categories, such as special tyres (POR, MPT), all terrain (AT) tyres, and retreaded tyres for passenger cars.

49. The expert from EC mentioned the activities at the IWG on Intelligent Transport Systems (ITS) / Automated Driving (AD) concerning the extension of regulatory activities related to the SAE automation levels 3 and 4. He also mentioned the current discussion subject on the tasks distributions between the driver and the machine and he highlighted that further discussions with the Working Party on Road Traffic Safety (WP.1) would be useful.

50. GRRF welcomed the idea of its Chair to organize future joint meetings with WP.1. He highlighted the need to prioritize working items on Level 3 and possibly at a later stage on Level 4 given the challenges related to the ambitious timelines set.

51. The Secretary of the WP.1 informal group on automated vehicles reported on the latest discussions within the group i.e. the interpretation of the road traffic conventions and the implication for the different levels of automation.

52. Further discussions on vehicle automation took place under items 9 (b) and 11.

53. The Secretary of the Task Force on Cyber Security and Over-The-Air updates reported on the outcome of the first two meetings of the task force. He mentioned that the Task Force agreed on terms of reference for adoption by the IWG on ITS/AD. He announced that the next meeting would be held on 16-17 February 2017 in Paris.

54. The secretariat informed about the 2017 Future Networked Car Symposium to be held in Geneva during the Geneva Motor Show on 9 March 2017 and kindly invited all delegates to attend the symposium.

55. The expert from the European Commission introduced ECE/TRANS/WP.29/GRRF/2017/8 proposing clarifications in Annex 6, dealing with the Complex Electronic provisions. The proposal received written comments (GRRF-83-20 and GRRF-83-24) from the experts from the Netherlands and from OICA. GRRF combined the comments received as reproduced in GRRF-83-29.

56. GRRF agreed with the Chair’s proposal to convene an informal meeting to further develop the document on the basis of the comments received. The expert from UK volunteered to convene a meeting end of April or beginning of May.

GRRF-83-20 | OICA comments on document GRRF/2017/8 (UN R79) OICA comments and questions regarding the EC proposal to amend the UN R79 annex on complex electronic systems to require auditing of methodologies used to ensure system safety at both concept and system level.

GRRF-83-24 | Comments on ECE/TRANS/WP.29/GRRF/2017/8 Comments concerning the clarity and utility of certain provisions in the proposal to amend the annex on complex electronic systems.

GRRF-83-29 | Proposed amendments to ECE/TRANS/WP29/GRRF/2017/8 Revised proposal, pursuant to GRRF-83 discussions, to amend the annex on complex electronic systems, in particular, to require auditing of the methodologies used to ensure system safety at both concept and system level.

GRRF/2017/8 | Proposal for amendments to Regulation No. 79 Proposal to amend the annex on complex electronic systems, in particular, to require auditing of the methodologies used to ensure system safety at both concept and system level. Concept level specifically requires consideration of interaction with other vehicle systems.

57. The Secretary of the IWG on Automatically Commanded Steering Function (ACSF) presented (GRRF-83-27) the modifications proposed (GRRF-83-08) to the document already adopted by GRRF at its September 2016 session (ECE/TRANS/WP.29/2017/10) and subject to reconfirmation by GRRF.

58. GRRF reviewed the proposal made by the IWG (GRRF-83-08), briefly mentioned GRRF-83-21 and discussed the necessity to submit the document as the draft 02 series amendments to Regulation No. 79.

59. GRRF discussed the proposal made by OICA (GRRF-83-22) under agenda item 3(a) in the context of the definitions for Corrective Steering Function (CSF) and ACSF discussed under this agenda item. GRRF agreed to resume consideration on this item at its next session.

60. At the end of the formal meeting, GRRF adopted the proposal as amended by GRRF-83-08-Rev.2. GRRF also agreed to invite the secretariat to continue, after the closure of the meeting, drafting the transitional provisions (corresponding to the intention of GRRF expressed during the session) together with the interested experts still present (GRRF-83-08-Rev.3).

61. GRRF requested the secretariat to submit the adopted amendments (reproduced in Annex V) to ECE/TRANS/WP.29/2017/10 to WP.29 and AC.1 for consideration and vote at their March 2017 sessions. Annex V also contains Transitional Provisions in square brackets. These provisions were not part of adopted amendments but are nevertheless forwarded to WP.29 for consideration.

GRRF-83-08 | Proposal for amendments to ECE/TRANS/WP.29/2017/10 ACSF informal group revisions to the proposal to introduce corrective steering and B1 level (lane-keeping) automatically commanded steering functions provisions into UN R79. The proposal substantially revises the corrective steering test procedure, providing greater clarity over the procedure and requirements, and makes editorial corrections.

GRRF-83-08/Rev.1 | Revised proposal for amendments to ECE/TRANS/WP.29/2017/10 Revised set of amendments to improve and clarify the draft amendment to UN R79 for introduction of provisions for corrective steering and ACSF category A and B1 systems. In particular, the revised document seeks consensus on symbols and interaction between the system and driver, including specifications for notifications related to the status the driver's hands on the wheel.

GRRF-83-08/Rev.2 | Revised proposal for amendments to ECE/TRANS/WP.29/2017/10 Proposal for amendments to the draft amendment to introduce provisions for corrective steering and category A and B1 automatically commanded steering functions (ACSF) into UN Regulation No. 79 as agreed during the 83rd GRRF session.

GRRF-83-08/Rev.3 | Revised proposal for amendments to ECE/TRANS/WP.29/2017/10 Proposal for amendments to the draft amendment to introduce provisions for corrective steering and category A and B1 automatically commanded steering functions (ACSF) into UN Regulation No. 79 as agreed during the 83rd GRRF session, including the proposal to allow for the approval of systems that do not comply with the mandatory use of the color red for the "hands off" steering wheel warning symbol (introduced by this amendment) until 1 April 2020 for consideration by the World Forum.

GRRF-83-21 | Request for clarification of interpretation on the application of the provisions for CSF, ACSF A and ACSF B1 OICA request for confirmation that:<ul><li>the provisions for CSF, ACSF A and ACSF B1 will be introduced via a new supplement 06 to the current series of amendments to UN R79;</li><li>the vehicles approved prior to the introduction of the new supplement will not be required to comply with it, even in case of an extension.</li></ul>

GRRF-83-27 | Presentation on the changes proposed for the draft amendment to UN R79 on ACSF (GRRF-83-08) Document GRRF-83-08 proposes modifications to document WP.29/2017/10 proposing amendments to UN R79 to enable the approval of corrective steering and category A and B1 automated steering systems (ACSF).

WP.29/2017/10 | Proposal for Supplement 6 to the 01 series of amendments to Regulation No. 79 Proposal to introduce corrective steering and B1 level ACSF type approval provisions into UN R79. This proposal would enable the approval of corrective steering and lane-keeping assist systems in addition to current provisions for automated steering functions that operate at speeds up to 10 km/h.

62. The GRRF Ambassador at the IWG on International Whole Vehicle Type Approval (IWVTA) presented a status report on the activities of the IWG.

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

64. The expert from EC introduced GRRF-83-19 reporting on the status of the review of the General Safety and Pedestrian Safety Regulations proposing a number of measures that could be implemented and for which some activities could be launched at GRRF. Given the timelines envisaged, the Chair recommended to already start addressing certain measures such as AEBS as discussed under agenda item 2.

GRRF-83-19 | Status of the review of the EU General Safety Regulation and Pedestrian Safety Regulation

65. The secretariat introduced GRRF-83-04 reporting on the GRRF relevant highlights of the 170th session of WP.29. For more information, please refer to the session report (ECE/TRANS/WP.29/1126).

GRRF-83-04 | WP.29 November session highlights for the 83rd GRRF session

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