1. The Working Party on Brakes and Running Gear (GRRF) held its seventy-fifth session from 17 to 19 September 2013 in Geneva. The meeting was chaired by Mr. B. Frost (United Kingdom). 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): Australia, Belgium, Canada, China, Czech Republic, Denmark, Finland, France, Germany, Hungary, India, Italy, Japan, Kuwait, Latvia, the Netherlands, Norway, Oman, Republic of Korea, Russian Federation, Slovakia, Spain, Sweden, South Africa, the United Kingdom of Great Britain and Northern Ireland (UK) and the United States of America (USA). An expert from the European Commission (EC) also participated.

Experts from the following non-governmental organizations (NGOs) participated: the European Association of Automotive Suppliers (CLEPA), the International Motorcycle Manufacturers Association (IMMA), the International Organization for Standardization (ISO), the European Tyre and Rim Technical Organisation (ETRTO) and the International Organization of Motor Vehicle Manufacturers (OICA).

Upon the special invitation of the Chair, experts from the following NGOs participated: the retread industry’s trade association “Bureau International Permanents des Associations de Vendeurs et Rechaupeurs de Pneumatiques” (BIPAVER) and the Federation of European Manufacturers of Friction Materials (FEMFM).

2. GRRF considered and adopted the agenda prepared for the seventy-fifth session (ECE/TRANS/WP.29/GRRF/2013/11 and Add.1).

3. GRRF also adopted the running order for the session as proposed in GRRF-75-01 and the updated consolidated agenda GRRF-75-36-Rev.1. GRRF noted that the list of decisions and the follow-up actions for the documentation would be reflected after the session in GRRF-75-44.

4. The informal documents distributed during the session are listed in Annex I of the meeting
report.

GRRF-75-01 | Running order of the provisional agenda of the 75th session of GRRF

GRRF-75-36/Rev.1 | Updated and consolidated provisional agenda of the 75th GRRF session Including the addition of the latest informal document submissions.

GRRF/2013/11 | Annotated provisional agenda for the 75th GRRF session

GRRF/2013/11/Add.1 | Addendum to the provisional agenda for the 75th GRRF session

5. Following a bilateral discussion with OICA, the expert from India withdrew GRRF-75-24 and requested OICA to provide clarifications on the table in Annex 3 to UN Regulation No. 131. GRRF agreed to resume consideration of this item at its February 2014 session on the basis of a revised document.

GRRF-75-24 | Proposal for a Supplement 02 to the 01 Series of amendments to UN Regulation No. 131 Proposal to clarify the text of the regulation.

6. The expert from CLEPA introduced GRRF-75-38 proposing a minor correction of the table of content of the Regulation. GRRF requested the secretariat to take into account this correction in Revision 1 to this Regulation.

GRRF-75-38 | Proposal for a corrigendum to Regulation No. 131 Proposal to insert missing item in the table of contents.

7. This item was discussed in conjunction with agenda item 10(b).

8. The Chair of the informal working group on Automated Connections between Vehicles (ACV) introduced ECE/TRANS/WP.29/GRRF/2013/12 proposing to insert provisions on automated couplings into UN Regulation No. 13. He presented GRRF-75-03, containing the ISO standard which is referred to in the proposal. He also introduced GRRF-75-23 amending ECE/TRANS/WP.29/GRRF/2013/12. He provided updated information requested during the seventy-fourth session of GRRF (GRRF-75-22). GRRF adopted this proposal, as amended by Annex II of the meeting report and requested the secretariat to submit the proposal to WP.29 and the Administrative Committee of the 1958 Agreement (AC.1) for consideration at their March 2014 sessions as draft Supplement 11 to the 11 series of amendments to UN Regulation No. 13.

GRRF-75-03 | Supporting document for the proposal on automated connections between vehicles Supporting document to the proposal from the informal working group on Automated Connections between Vehicles concerning the referencing of ISO13044-2:2013 in the proposed amendments to UN Regulation No. 13.

GRRF-75-22 | Simplified Compatibility Matrix of Tractor - Semitrailer with Electric and Pneumatic Interfaces

GRRF-75-23 | Amendment to the proposal to introduce automated connections between vehicles into UN R13 Correction to document GRRF/2013/12 to clarify the intent to specify that a vehicle must be equipped with ISO 7638 or an automated connector (ACV) or both.

GRRF/2013/12 | Proposal for amendments to Regulation No. 13 Text prepared by the informal working group on Automated Connections between Vehicles (ACV) to introduce automatic coupling systems into UN Regulation No. 13.

9. The expert from OICA presented ECE/TRANS/WP.29/GRRF/2013/13 proposing to introduce harmonized cross references to UN Regulation No. 10 into UN Regulations Nos. 13, 13-H, 79, 89, 130 and 131. GRRF adopted the document, as amended below, and requested the secretariat to submit the amendments to WP.29 and AC.1, as part of upcoming amendments to the corresponding UN Regulations. In this respect, the document will be kept on the agenda of GRRF, pending the submission of the adopted text to WP.29 and AC.1.

Throughout the text, for “fulfilling the technical requirements and transitional…”, read “fulfilling the technical requirements and respecting the transitional…”.

Throughout the text, for “RESS”, read “rechargeable energy storage system”.

10. The expert from the United Kingdom proposed introducing similar amendments into Regulation No. 78. The expert from IMMA offered his support to check Regulation No. 78 for the next session. GRRF agreed to resume consideration of this proposal at it next session.

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.

11. The expert from Germany presented ECE/TRANS/WP.29/GRRF/2013/29 introducing provisions for electrical or hydraulic transmissions for brake systems. The expert from OICA, with reference to GRRF-75-13, answered to this proposal. GRRF noted a number of comments and agreed to resume consideration of this item at its next session on the basis of a revised document that the expert from Germany volunteered to prepare.

GRRF-75-13 | OICA comments regarding document GRRF/2013/29 Questions raised by OICA in response to the German proposal to clarify electrical braking system and energy supply line requirements with regard to towed trailers, including proposals for voltage specifications and inclusion of electro-hydraulic transmission devices within such systems.

GRRF/2013/29 | Proposal for amendments to UN Regulation No. 13 Text prepared by Germany to clarify electrical braking system and energy supply line requirements with regard to towed trailers, including proposals for voltage specifications and inclusion of electro-hydraulic transmission devices within such systems. The text also seeks to align terminology with comparable paragraphs in other UN Regulations.

12. The expert from CLEPA introduced GRRF-75-17, clarifying provisions of UN Regulation No. 13. GRRF agreed to resume consideration of this proposal at its next session.

GRRF-75-17 | Draft proposal of amendments to Regulation No. 13 Proposal to clarify approval requirements for vehicles and trailers equipped with anti-lock braking systems with regard to the braking compatibility of towing and towed vehicles, including between ABS and compressed-air braking systems. The proposal revises Annexes 10 and 13 of the regulation.

13. The expert from UK, recalling the purpose of ECE/TRANS/WP.29/2012/30, reported on the outcome of the group of experts working on updated transitional provisions of UN Regulations Nos. 13 and 13-H as reproduced in GRRF-75-40 superseding ECE/TRANS/WP.29/GRRF/2013/27. GRRF noted a number of comments. GRRF agreed to reconsider ECE/TRANS/WP.29/GRRF/2013/27, ECE/TRANS/WP.29/GRRF/2013/28 and GRRF-75-40 at its next session.

GRRF-75-40 | Revised proposal for transitional provisions of Regulation No. 13 Revisions to document GRRF/2013/28 intended to simplify the transitional provisions.

GRRF/2013/27 | Proposal for amendments to Regulation No. 13-H Text prepared by the United Kingdom of Great Britain and Northern Ireland to review and simplify the UN R 13-H transitional provisions.

GRRF/2013/28 | Proposal for amendments to Regulation No. 13 Text prepared by the United Kingdom of Great Britain and Northern Ireland to review and simplify the UN R-13 transitional provisions.

WP.29/2012/30 | Proposal for the 01 series of amendments to Regulation No. 121 Proposal for transitional provisions concerning the electronic stability control telltale and approval markings related to UN R121.

14. GRRF requested the secretariat to take the proposed editorial corrections to Revision 7 of Regulation No.13 in ECE/TRANS/WP.29/GRRF/2013/14, GRRF-75-06 and GRRF-75-35, proposing editorial corrections to Revision 7 of Regulation No. 13 into consideration while preparing Revision 8 of the Regulation. GRRF agreed to resume consideration of these documents at its next session.

GRRF-75-06 | Proposal for amendments to UN Regulation No. 13 Correction to ISO reference since Byte 3-4 of EBS 11 is only referenced in Part 2 of ISO 11992 and therefore the text should make explicit that reference along with amendment 1:2007. Also proposes to omit several redundant footnotes and references.

GRRF-75-35 | Proposal for a corrigendum to Revision 7-Corrigendum 2 Regulation No. 13 Proposal to correct typographical errors in Corrigendum 2 to Revision 7 of UN R13 wherein the symbols s, s' and s_o were erroneously transcribed.

GRRF/2013/14 | Proposal for amendments to Regulation No. 13 Text prepared by the International Organization of Motor Vehicle Manufacturers (OICA) and the European Association of Automotive Suppliers (CLEPA) to effect an extensive set of corrections and clarifications to formulas and references used UN Regulation No. 13, based on document GRRF-74-31.

15. The expert from OICA withdrew GRRF-75-05.

GRRF-75-05 | Proposal for editorial correction to UN Regulation No. 13-H OICA notes the change in name of "ASTM" to "ASTM International".

16. The expert from the Russian Federation introduced GRRF-75-07 amending ECE/TRANS/WP.29/GRRF/2013/15 and proposing corrections to the Russian translation of Regulation No. 13. GRRF adopted the proposal as amended by Annex III to this report (based on GRRF-75-07) and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2014 sessions as draft Corrigendum to UN Regulation No. 13 (Russian text only).

GRRF-75-07 | Addendum to document GRRF/2013/15 Addendum to the proposed correction to the Russian-language version of Revision 7 of UN Regulation No. 13 to better align with the English and French versions.

GRRF/2013/15 | Correction to the Russian-language text of UN Regulation No. 13

17. The expert from Sweden proposed amendments to UN Regulation No. 13 requesting the presence of a sticker in the vehicle showing a diagram of the Brake Reference Force (GRRF-75-37). GRRF noted some comments and agreed to resume consideration of this proposal at its next session.

GRRF-75-37 | Proposed amendments for Regulation No.13 Proposal to require a vehicle sticker showing a diagram of the brake reference forces to facilitate their use in periodic technical inspections.

18. The expert from Germany introduced GRRF-75-08 and GRRF-75-09 proposing to delete the exemption for vehicles of categories O₁ and O₂ from automatic brake adjustment devices, as such technology were broadly available on the market. GRRF requested the expert from Germany to provide, if possible, for the next session further elements on costs and benefits as well as additional statistical data in support of the proposed amendment.

GRRF-75-08 | Proposal for amendments to Regulation No. 13 Proposal to require an automatic adjustment of the service brakes for trailers of class O1 and O2.

GRRF-75-09 | Automatic adjustors on wheel-brakes for class O1 and O2 trailers Supporting document to explain Germany's proposal for mandatory automatic adjustment of brakes for class 01 and 02 trailers.

19. The Chair of the informal working group on Regulation No. 55 (Mechanical Couplings) introduced ECE/TRANS/WP.29/GRRF/2013/16 as amended by GRRF-75-21, proposing minor amendments to UN Regulation No. 55. GRRF noted that the reference to an ISO standard had been updated and requested information on the content of this standard. GRRF agreed to resume consideration of this proposal at its next session on the basis of a revised document.

GRRF-75-21 | Corrigendum to the proposal for amendments to Regulation No. 55 Corrections to delete text concerning movable couplings that was inadvertently included in document GRRF/2013/16.

GRRF/2013/16 | Proposal for Supplement 4 to the 01 series of amendments to Regulation No. 55 Text prepared by the informal group on Regulation No. 55 to amend the requirements for movable couplings, increase the range of application of remote controls to couplings similar to C50-X and G50-X, enable the increase of characteristic values of standard couplings and to add requirements for the mounting of couplings.

20. The expert from IMMA introduced ECE/TRANS/WP.29/GRRF/2013/32, as amended by GRRF-75-31. The proposal received some comments. The expert from India presented GRRF-75-27 and confirmed that IMMA took their comments into account in GRRF-75-31. GRRF agreed to revisit this subject at its next session on the basis of a revised document, which the expert from IMMA volunteered to prepare.

GRRF-75-27 | India comments on document GRRF/2013/32 Comments on the proposed series of amendments to clarify a variety of requirements, notably concerning test surface requirements, ABS cycling, and peak braking coefficient measurements in UN R78.

GRRF-75-31 | Corrections to document GRRF/2013/32 concerning clarifications to UN Regulation No. 78 Corrections to the proposed series of amendments to clarify a variety of requirements, notably concerning test surface requirements, ABS cycling, and peak braking coefficient measurements in UN R78.

GRRF/2013/32 | Proposal for amendments to Regulations No. 78 Series of amendments to clarify a variety of requirements, notably concerning test surface requirements, ABS cycling, and peak braking coefficient measurements.

21. The expert from IMMA introduced ECE/TRANS/WP.29/GRRF/2013/34. He added that IMMA would like to address the comments made by India (GRRF-75-25). GRRF agreed to resume consideration on this subject at its next session on the basis of a revised document, which the expert from IMMA volunteered to prepare.

GRRF-75-25 | India comments on document GRRF/2013/34 Comments on the text prepared by the International Motorcycle Manufacturers Association (IMMA) to modify provisions concerning the sharing of components within combined braking systems (CBS) in order to adapt to technological progress.

GRRF/2013/34 | Proposal for amendments to Regulation No. 78 Text prepared by the International Motorcycle Manufacturers Association (IMMA) to modify provisions concerning the sharing of components within combined braking systems (CBS) in order to adapt to technological progress.

22. The expert from IMMA introduced ECE/TRANS/WP.29/GRRF/2013/33 on behalf of the sponsor, Italy. He added that this document was amended by GRRF-75-32. The proposal received some comments. The expert from India presented GRRF-75-28 and noted that IMMA had considered their comments in GRRF-75-32. GRRF agreed to revisit this subject at its next session on the basis of a revised document. GRRF noted that ECE/TRANS/WP.29/2013/128 may need revision to reflect the progress made by GRRF. The expert from Italy volunteered to prepare the revised document, if necessary.

GRRF-75-28 | India comments on document GRRF/2013/33 Comments on the proposed series of amendments to clarify a variety of requirements, notably concerning test surface requirements, ABS cycling, and peak braking coefficient measurements, in GTR No. 3.

GRRF-75-32 | Corrections to document GRRF/2013/32 concerning clarifications to GTR No. 3 Corrections to the proposed series of amendments to clarify a variety of requirements, notably concerning test surface requirements, ABS cycling, and peak braking coefficient measurements.

GRRF/2013/33 | Proposal for amendments to Global Technical Regulation No. 3 Series of amendments to clarify a variety of requirements, notably concerning test surface requirements, ABS cycling, and peak braking coefficient measurements.

WP.29/2013/128 | Request for authorization to develop amendments to GTR No. 3 Request for authorization to develop an amendment to the GTR on motorcycle braking systems to clarify the terms "inoperative" and "disconnected", refine the definition of combined braking systems (CBS) in line with technological advances, and to make editorial improvements.

23. The expert from IMMA presented ECE/TRANS/WP.29/GRRF/2013/35 and noted the comments by the expert from India (GRRF-75-26). GRRF agreed to revisit this subject at its next session on the basis of a revised document, which the expert from IMMA volunteered to prepare.

GRRF-75-26 | India comments on document GRRF/2013/35 Comments on the text prepared by the Italy to modify GTR No. 3 provisions concerning the sharing of components within combined braking systems (CBS) in order to adapt to technological progress.

GRRF/2013/35 | Proposal for amendments to Global Technical Regulation No. 3 Text prepared by the Italy to modify provisions concerning the sharing of components within combined braking systems (CBS) in order to adapt to technological progress.

24. The expert from CLEPA, recalling the purpose of ECE/TRANS/WP.29/GRRF/2013/4, reported on the work of OICA, CLEPA and CLCCR and introduced GRRF-75-18 amending the original proposal. GRRF noted the completion of technical work. The expert from OICA also introduced GRRF-75-19 supporting the technical content of the proposal but disagreeing with legal aspects such as intellectual property, product liability and reputation issues that may occur. The expert from CLEPA addressed the concerns of OICA (GRRF-75-41). The expert from Spain noted some administrative and procedural difficulties for Type Approval Authorities that this proposal may create. The expert from France requested a justification for the deletion proposed in Annex 4B. GRRF agreed, in principle, with the technical provisions and requested the secretariat to distribute GRRF-75-18 with an official symbol for further consideration at its next session. GRRF requested the Chair to report to WP.29 at its November 2013 session on both the technical and the legal aspects.

GRRF-75-18 | Proposal for amendments to Regulation No. 90 Proposal to improve the definition of "identical" parts as applied to replacement brake discs and drums and to introduce an "identical" part definition for brake linings.

GRRF-75-19 | OICA comments on Regulation No. 90 proposal concerning identical brake discs, drums, and linings OICA's remaining concerns over the proposal to refine the definition of "identical" discs and drums and to extend this to brake linings.

GRRF-75-41 | CLEPA responses to OICA concerns regarding proposed definitions of "identical" brake drums, discs, and linings Responses to document GRRF-75-19 detailing OICA's remaining concerns over the proposal to refine the definition of "identical" discs and drums and to extend this to brake linings.

GRRF/2013/4 | Proposal for Supplement 2 to the 02 series of amendments to Regulation No. 90 Text prepared by the Federation of European Manufacturers of Friction Materials (FEMFM) proposing to exclude brake linings and/or lining assemblies that are chemically and physically identical to the original part from the requirements (as is currently the practice for brake discs and drums).

25. The expert from USA, referring to ECE/TRANS/WP.29/2013/63, reported on the progress made on unresolved issues before its potential adoption. He informed GRRF about their testing schedule for the wet grip test validation. The expert from China referred to the Chinese Standard GB/T 4504-2009 for resolving remaining issues with the bead-unseating test. GRRF agreed that an additional meeting of the informal group on the Tyre GTR would be necessary, subject to the authorization at the November 2013 session of WP.29 to hold an additional meeting in January 2014. GRRF agreed that the informal group should refer to the existing terms of reference. GRRF preferred to postpone the vote by WP.29 and AC.1 on ECE/TRANS/WP.29/2013/63.

WP.29/2013/63 | Proposal for a global technical regulation on tyres Text of the new GTR on light vehicle radial tires as adopted by the Working Party on Brakes and Running Gear (GRRF) at its 74th session.

26. The expert from ETRTO presented GRRF-75-02, justifying the wet grip limit values for C3 tyres specified in ECE/TRANS/WP.29/2013/66. Following a tour de table, the Chair noted that half the experts were in favour of amending the proposed limits for normal and traction tyres whilst retaining the proposed limits for snow and special use tyres, while the other half were in favour of maintaining those proposed in ECE/TRANS/WP.29/2013/66. The GRRF Vice-Chair volunteered to lead a discussion with interested experts on a proposal for GRRF at its next session. GRRF preferred to postpone the vote by WP.29 and AC.1 on ECE/TRANS/WP.29/2013/66 until their June 2014 sessions.

GRRF-75-02 | Wet grip for C3 tyres: Minimum type-approval level Supporting presentation to the ETRTO proposal for minimum wet-grip performance thresholds (document GRRF-73-18) to ensure that improvements in tire rolling resistance (per EU CO2 goals) do not result in inadequate wet-grip performance.

WP.29/2013/66 | Proposal for Supplement 6 to the 02 series of amendments to Regulation No. 117 Text as adopted by the Working Party on Brakes and Running Gear (GRRF) at its 75th session based upon a proposal by the European Commission, France and ETRTO to introduce wet grip provisions and testing procedures for tyres of categories C2 and C3.

27. The expert from the Russian Federation introduced a proposal for corrections in the Russian version of UN Regulation No. 117 with the aim of aligning the English and Russian texts (ECE/TRANS/WP.29/GRRF/2013/17). GRRF adopted the proposal and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2014 sessions as draft Corrigendum 3 to 02 series of amendments to UN Regulation No. 117 (Russian text only).

GRRF/2013/17 | Proposal for a corrigendum to the Russian-language text of UN Regulation No. 117

28. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2013/18, proposing to correct the text of UN Regulation No. 117. GRRF adopted this proposal and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their March 2014 sessions as draft Corrigendum 4 to 02 series of amendments to UN Regulation No. 117.

GRRF/2013/18 | Proposal for corrigendum to UN Regulation No. 117 Supplement 2 to the 02 series of amendments to Regulation No. 117 (Document WP.29/2012/54) as adopted at the June WP.29 session contained a typo where the snow temperature range for the snow grip test should be ‐4°C to ‐15°C, but the 'minus' sign was omitted before the first figure.

29. The expert from ETRTO withdrew ECE/TRANS/WP.29/GRRF/2013/30 and, as a result, the experts from the Russian Federation withdrew GRB-58-13. The expert from Canada sought for information from GRRF on the temperature to test snow tyres. The expert from IMMA offered to provide information to Canada in a bilateral discussion.

GRB-58-13 | Changes to proposal for Supplement 6 to the 02 series of amendments to UN R117 Proposal to revise the European Tyre and Rim Technical Organisation (ETRTO) proposals (documents GRB-58-02 and GRRF/2013/30) to correct inconsistencies in time measurement accuracy in annex 6 of the regulation.

GRRF/2013/30 | Proposal for amendments to Regulation No. 117 Text prepared by the European Tyre and Rim Technical Organisation (ETRTO) in order to correct inconsistencies in time measurement accuracy in Annex 6 of UN R 117.

30. The expert from ETRTO proposed inserting new tyre sizes in Annex 5 of UN Regulation No. 54 (ECE/TRANS/WP.29/GRRF/2013/19). GRRF adopted this proposal and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2014 sessions as draft Supplement 19 to UN Regulation No. 54.

GRRF/2013/19 | Proposal for amendment to UN Regulation No. 54 Proposal to incorporate additional tire sizes within the regulation for commercial vehicle tires sold in countries requiring type approval according to UN Regulation No. 54.

31. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2013/26, proposing to correct the text of UN Regulation No. 54. GRRF adopted this proposal and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2014 sessions as draft Corrigendum 6 to UN Regulation No. 54.

GRRF/2013/26 | Proposal for corrigendum to Regulation No. 54 Text prepared by the European Tyre and Rim Technical Organisation (ETRTO) to correct editorial errors in the adopted proposal for Supplement 18 to Regulation No. 54 (document WP.29/2012/49).

32. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2013/20 and sought guidance. The expert from IMMA proposed to collaborate with ETRTO on this subject. GRRF noted, the amendments proposed in ECE/TRANS/WP.29/GRRF/2013/22 were linked to this item. GRRF agreed to resume consideration of this subject at its next session on the basis of a revised proposal by the expert from ETRTO.

GRRF/2013/20 | Proposal for amendments to UN Regulation No. 75 Proposal to include ATV tires in the motorcycle and moped tire regulation in order to enable the type approval of tires designed to equip quadricycles covered by the new Regulation (EU) No. 168/2013 of 15 January 2013 on the approval and market surveillance of two- or three-wheel vehicles and quadricycles (L category vehicles). These tires may also equip some agricultural tractors (SbS vehicles) covered by the new EU Regulation.

GRRF/2013/22 | Proposal for amendments to Regulation No. 106 Text prepared by the European Tyre and Rim Technical Organisation (ETRTO) to remove All Terrain Vehicles (ATV) tires from UN Regulation 106 on agricultural tires.

33. The expert from ETRTO presented ECE/TRANS/WP.29/GRRF/2013/21, proposing a clarification of “the second load/speed performance” test. GRRF adopted this proposal and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2014 sessions as draft Supplement 14 to UN Regulation No. 75.

GRRF/2013/21 | Proposal for amendments to Regulation No. 75 Text prepared by the European Tyre and Rim Technical Organisation (ETRTO) to clarify the test procedure of the second load/speed performance test used for tires designed for speeds above 240 km/h for tires (as identified by the letter code "V" or "Z" in the size designation).

34. The expert from ETRTO proposed to insert new tyre sizes in Annex 5 of UN Regulation No. 106 (ECE/TRANS/WP.29/GRRF/2013/23). GRRF adopted this proposal and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2014 sessions as draft Supplement 11 to the original version of UN Regulation No. 106.

GRRF/2013/23 | Proposal for amendments to Regulation No. 106 Text prepared the European Tyre and Rim Technical Organisation (ETRTO) to introduce new tire sizes.

35. The expert from ETRTO introduced ECE/TRANS/WP.29/GRRF/2013/24. GRRF noted that the proposed amendments to paragraph 3.1.13. need clarifications and agreed to revisit this item at its next session on the basis of a revised proposal by the expert from ETRTO.

GRRF/2013/24 | Proposal for amendments to Regulation No. 106 Editorial improvements to the wording of marking requirements, superseding document GRRF-74-03.

36. In the absence of a new proposal, GRRF agreed to defer this agenda item to its next session.

37. On behalf of CLCCR, the expert from CLEPA proposed amendments to UN Regulation No. 79 (ECE/TRANS/WP.29/GRRF/2013/25) inserting new requirements for trailers with a steering control system utilising electrical energy from the towing vehicle. The proposal received some comments (GRRF-75-11). The expert from Japan noted the absence of a definition for “IP54”. GRRF agreed to resume consideration of this subject at its next session on the basis of a revised proposal.

GRRF-75-11 | OICA comments regarding document GRRF/2013/25 OICA comments on the CLCCR proposal to remove restrictions in UN R76 on the use of energy from a towing vehicle by its trailer.

GRRF/2013/25 | Proposal for amendments to Regulation No. 79 At the 74th GRRF session, CLCCR presented document GRRF-74-37 which noted that a design restriction in UN R79 prevents trailers from using energy from a towing vehicle. Following discussion, a number of delegates indicated their support for an amendment to remove this restriction and enable the use of new technologies.

38. The expert from Japan withdrew ECE/TRANS/WP.29/GRRF/2013/6 as amended by GRRF-74-05. Referring to GRRF-75-34, he presented GRRF-75-33 with statistical data and estimations on LKAS benefits and invited interested experts to a meeting to further discuss this item. The expert from OICA introduced GRRF-75-12 as well as GRRF-75-04 correcting GRRF-74-18 containing comments on the Japanese proposal to regulate LKAS and PAS. The expert from the Russian Federation noted that including specific requirements on LKAS into Regulation No. 79 would be against the spirit of IWVTA. GRRF agreed to resume consideration of this subject at its next session.

GRRF-74-05 | Correction to the table 1 in document GRRF/2013/6 Correction to the schedule envisioned for work on the proposed new regulation for lane-keeping assist systems (LKAS) and parking assist systems (PAS).

GRRF-75-04 | CLEPA/OICA comments to Japan proposal to regulate LKAS and PAS OICA positions opposed to the Japanese proposal for new regulations to govern lane-keeping assist systems and parking assist system, arguing that such systems are already covered under UN Regulation 79.

GRRF-75-12 | OICA comments on Japan documents GRRF-74-40 and 41 regarding LKAS OICA comments on Japan's proposal and supporting justification for a new regulation on lane-keeping assistance systems (documents GRRF-74-40 and GRRF-74-41).

GRRF-75-33 | Traffic Accidents caused by Lane Departure in Japan Presentation to further discussions on Japan's proposal to establish a new UN Regulation on lane-keeping assistance systems.

GRRF-75-34 | Consultation concerning treatment of Lane Keeping Assist System in Regulation No. 79 Joint invitation by Sweden and Japan to an ad hoc meeting to discuss the possibility of amendment Regulation No. 79 to introduce provisions of lane-keeping assistance and other corrective steering systems.

GRRF/2013/6 | Proposal for an informal group on Lane Keeping Assist and Parking Assist Systems Proposal to establish an expert group with a mandate to prepare new harmonized regulations for lane-keeping and parking-assist systems.

39. The ambassador of GRRF reported on the activities of the IWVTA informal group and its subgroups (GRRF-75-43). He focused on the activities related to the future UN Regulation No. 0.

GRRF-74-43 | Tests supporting provisions for the snow test for tyres of category C3 Relation between L&R slip ratio difference and ACC without TCS and Differential Lock and Comparison between Traction Control System “ON” and “OFF”.

40. The expert from Japan introduced GRRF-75-10. He proposed removing UN Regulation No. 89 from the list of UN Regulations applicable for IWVTA. GRRF endorsed the proposal of OICA to rather affect it into the letter (c) (“for those Regulations needing major amendments or creation of UN regulations, which will be reviewed in the second step”). GRRF agreed to resume, at its next session, consideration of the question whether Tyre Pressure Monitoring System (TPMS) provisions should be separated from UN Regulation No. 64.

GRRF-75-10 | Proposal for amendments to the IWVTA relevance assessment of the UN Regulations in scope of GRRF

41. The expert from OICA introduced GRRF-75-20 proposing a first draft for a new UN Regulation on tyre installation and requested guidance. The expert from EC proposed to extend the scope of the proposal to vehicle categories M, N and O to harmonize the proposal with the corresponding Commission Regulation No. 458/2011. He announced that the EC would consider applying this Regulation and replacing the corresponding Commission Regulation. The expert from the Russian Federation proposed to refer explicitly to UN Regulations Nos. 30, 54 and 117 in the draft. GRRF invited the experts to send comments to the OICA expert not later than 29 November 2013. GRRF agreed to resume consideration of this proposal at its next session on the basis of a revised document that the expert from OICA volunteered to prepare.

GRRF-75-20 | ETRTO/OICA proposal for a new Regulation on the installation of tyres Proposal for a new regulation for the approval to tires installed on a vehicle. This regulations is proposed for use within the International Whole Vehicle Type Approval system in order to ensure proper tire fitment on a vehicle under IWVTA evaluation.

42. The expert from OICA introduced GRRF-75-14, GRRF-75-15 and GRRF-75-16 proposing amendments to UN Regulation No. 13-H and proposing separation of the provisions in UN Regulations for braking systems, Electronic Stability Control (ESC) and Brake Assist Systems (BAS). The Chair invited the experts to provide the OICA expert with written comments not later than 29 November 2013. GRRF agreed to resume consideration of this item at its next session on the basis of a revised proposal, which the expert from OICA volunteered to prepare.

GRRF-75-14 | CLEPA/OICA proposal for a separate regulation on Brake Assist Systems Proposal to transfer brake assist systems provisions out of UN Regulation 13-H and into a new stand-alone regulation. The proposal arises from a perceived need to simplify UN R13-H to facilitate its application within the proposed international whole vehicle type approval.

GRRF-75-15 | CLEPA/OICA proposal for a separate Regulation on Electronic Stability Controls Proposal to transfer electronic stability control systems provisions out of UN Regulation 13-H and into a new stand-alone regulation. The proposal arises from a perceived need to simplify UN R13-H to facilitate its application within the proposed international whole vehicle type approval.

GRRF-75-16 | Proposal for draft amendments to Regulations No. 13-H pursuant to the proposal to remove ESC/BAS provisions Proposal to delete references to electronic control systems and brake assist systems within UN R13-H in order to simplify use of the regulation within the proposed international whole vehicle type approval regulation. These provisions would be taken up by new separate UN Regulations.

43. The expert from OICA introduced GRRF-75-39 proposing several options for the inclusion of the Annex on complex electronic systems (see UN Regulations Nos. 79, 13 and 13-H) in the future UN Regulations on BAS, ESC and the amended UN Regulation No. 13-H. GRRF noted the absence of a list with “Pros and Cons” for each option. The expert from OICA volunteered to prepare such a list, to be considered at the February 2014 session of GRRF.

GRRF-75-39 | UN R13-H: Proposal to split out ESC and BAS provisions and handling of the CEL Annex Presentation of issues regarding the UN R13-H provisions on complex electronic control (CEL) systems and the proposals to separate electronic stability controls (ESC) and brake assist systems (BAS) from the light vehicle braking regulation. Since ESC and BAS are subject to CEL provisions, this raises a question on how best to apply CEL across what would be three separate regulations (13-H, ESC, and BAS).

44. GRRF recalled and acknowledged the purpose of ECE/TRANS/WP.29/2013/64 in reference to ECE/TRANS/WP.29/1102, para. 73.

WP.29/2013/64 | Proposal for Revision 2 to Rule No. 1 Text prepared by the Russian Federation and the International Motor Vehicle Inspection Committee (CITA) to align the provisions of Rule No. 1 with Rule No. 2, the latest UN Regulations, and with EU Directives. The draft amendments concern: (i) harmonization of the structure of the Rule No. 1 with Rule No. 2 (Roadworthiness), (ii) introduction of vehicle categories M1 and N1 and trailer categories O2, O3 and O4, and (iii) introduction of inspection methods, defect assessment and current state of practices.

45. In compliance with Rule 37 of the Rules of Procedure (TRANS/WP.29/690 and Amend. 1 and 2), GRRF called for the election of officers on Tuesday morning. Mr. B. Frost (United Kingdom) was unanimously elected Chair of GRRF for this session and for the GRRF sessions scheduled for the year 2014. Mr. H. Kubota (Japan) was elected Vice-Chair of GRRF for the same period.

46. The Secretary reported on the highlights of the 159th and 160th sessions of WP.29 (ECE/TRANS/WP.29/1102, ECE/TRANS/WP.29/1104).

47. The Secretary, recalling the purpose of ECE/TRANS/WP.29/GRRF/2013/31, reported on the conclusion of the Chairs of GRs, during their meeting in June 2013, preferring to not amend all UN Regulations but, for example, to include provisions concerning the revision and extensions of type approvals into the Consolidated Resolution on the Construction of Vehicles (R.E.3). GRRF agreed to resume consideration of this proposal at its next session.

GRRF/2013/31 | Proposal for collective amendments to Regulations Nos. 13, 13-H, 30, 54, 55, 78, 79, and 90 Text prepared by the International Organization of Motor Vehicle Manufacturers (OICA) to introduce the concept of "revision of approvals" into the UN Regulations under GRRF responsibility in order to align the UN Regulations with the EU Whole Vehicle Type Approval Directive 2007/46/EC in order to ease the administrative burden for both manufacturers and approval administrations regarding the extension of existing approvals.

48. The expert from the Russian Federation, recalling the purpose of GRSP-51-03, offered to send to the secretariat a list of acronyms compiled by his administration. The expert from UK offered her support to the Russian expert. GRRF agreed to revisit this item at its next session.

GRSP-51-03 | Abbreviations and Acronyms used in the UN Regulations of GRSP During the 50th session of GRSP, the chairperson had requested participants to prepare a list with abbreviations used in the UN regulations under GRSP. EC had volunteered to carry out this task and it was agreed that the list would be submitted to GRSP as an informal document.

49. The expert from Spain presented GRRF-75-42, on safety issues on proving grounds linked to braking tests and therefore proposed to modify the braking tests protocol. GRRF agreed that safety risks need to be considered, when defining safety rules applying to proving grounds and agreed to consider future proposals for amendments to the related UN Regulations, provided that studies demonstrate equivalence between the existing and the amended test procedures.

GRRF-75-42 | Proposal to modify brake test procedures to improve proving-ground safety Proposal to permit greater discretion in the performance of the fade tests should track safety considerations warrant. In view of several fatal accidents, the test tracks are concerned over requirements to bring the vehicle to a full stop repeatedly and rigidity of the requirement for 15 snubs in quick succession;

50. The expert from the Russian Federation introduced WP.29-160-39, GRRF-75-29 and GRPE-65-20 providing information on the release of particulate emissions from tyre wear and brake pad wear. The Chair invited interested experts willing to participate to the work on this subject to attend to the sessions of the Working Party on Pollution and Energy (GRPE).

GRPE-65-20 | Particulate Matter Emissions from Tires Discussion paper outlining concerns over particulates originating from tire erosion and suggesting a need for global regulatory provisions to limit such environmental risks.

GRRF-75-29 | Discussion paper on the environmental safety of automobiles Position paper calling attention to transport-related particulate matter, including exhaust and non-exhaust particulates, and considering the negative impact on air quality inside motor vehicles due to shortcomings in ventilation and filtration systems.

WP.29-160-39 | Real release of particulates by transport vehicles Background paper in support of the Russian proposal to consider further sources of harmful emissions, especially particulates, such as from tires and brake pads.