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.

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.

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).

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.

57. Following the suggestion of the WP.29, the secretariat introduced GRRF-78-04 containing a list of definitions in the Regulations under the responsibility of GRRF. The Chair of GRRF recalled GRRF‑76‑03 and noted that no follow-up action was defined. The secretariat announced that it was looking for a central and suitable location on the website to collect this useful information.

47. The expert from ETRTO presented GRRF-82-21 collecting the definitions in UN Regulations on tyres. He added that doing this review, they noted some possible harmonization of definitions across the Regulations. They invited the delegates to review the document and to indicate whether GRRF would support amending the Regulations in order to harmonize the definitions when relevant or develop a Resolution containing definitions. GRRF agreed to keep this document on the agenda of the next session.

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.

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.

14. The expert from Germany introduced ECE/TRANS/WP.29/GRRF/2017/12 as amended by GRRF-84-04 (Justification), clarifying the verification of the sufficient movement on the balancer without having to take measurements underneath the trailer in a potentially unsecure position. GRRF adopted this proposal.

15. GRRF requested the secretariat to submit the three official documents above as draft Supplement 15 to the 11 series of amendments to Regulation No. 13 for consideration and vote by WP.29 and AC.1 at their March 2018 session.

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.

45. The GRRF chair informed that GRRF reconfirmed ECE/TRANS/WP.29/2017/10 proposing a new series of amendments to Regulation No. 79 (Steering equipment) with provisions for Corrective Steering Function (CSF) and Automatically Commanded Steering Function (ACSF), but proposed amendments and clarifications to the document as reproduced in WP.29-171-06. He highlighted that some dates were still in square brackets.

69. Concerning the proposal under item 4.7.3., WP.29 took note that the technical provisions were proposed to WP.29 and AC.1 on the basis of a consensus by GRRF. The Chair of GRRF informed WP.29 that GRRF did not conclude their discussion on the dates of the transitional provisions, necessary for the introduction of the technical requirements as the 02 series of amendments to Regulation No. 79. WP.29, with the exception of Japan, agreed that this policy matter should be decided during this session. The representative from OICA introduced WP.29-171-28 proposing to align the transitional provisions on those in the guidelines proposed in ECE/TRANS/WP.29/2017/53 as well as proposing alternative transitional provisions dates. The representative from Japan introduced WP.29-171-34 expressing concerns that the application date of the new technical requirements for all types of vehicles was decided without an ad hoc meeting of GRRF and that the application date could have some influence for existing models equipped with these functions being beneficial for safety that would need to be modified to comply with the 02 series of amendments to UN Regulation No.79. He proposed to discuss this issue before next June session and introduce a footnote in the Regulation stating that the date mentioned in para. 12.3 (“[2021/2024]”) may be reassessed at the 172nd session of WP.29. The representative of OICA welcomed the statements by the representative of Japan and explained that the proposed 02 series of amendments to UN Regulation No. 79 entailed far more than software changes and that the implications were far-reaching, as detailed in WP.29-171-28. The secretariat mentioned that the proposed footnote (if adopted) would not take effect before the potential entry into force of this 02 series, expected in January 2018 and proposed instead to insert the corresponding information in the session report, recalling the wish of Japan to reassess para. 12.3. at the June 2017 session of WP.29. The representative of EU mentioned that fatalities occurred in the past related to the misuse of these advanced technologies and informed about their mandate to vote in favour of the current proposed text at this session on the basis of the year 2021 as an application date.

70. Agenda item 4.7.3, Regulation No. 79, ECE/TRANS/WP.29/2017/10, amend the document as reproduced in Annex IV to the session report.

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.

45. The GRRF chair informed that GRRF reconfirmed ECE/TRANS/WP.29/2017/10 proposing a new series of amendments to Regulation No. 79 (Steering equipment) with provisions for Corrective Steering Function (CSF) and Automatically Commanded Steering Function (ACSF), but proposed amendments and clarifications to the document as reproduced in WP.29-171-06. He highlighted that some dates were still in square brackets.

69. Concerning the proposal under item 4.7.3., WP.29 took note that the technical provisions were proposed to WP.29 and AC.1 on the basis of a consensus by GRRF. The Chair of GRRF informed WP.29 that GRRF did not conclude their discussion on the dates of the transitional provisions, necessary for the introduction of the technical requirements as the 02 series of amendments to Regulation No. 79. WP.29, with the exception of Japan, agreed that this policy matter should be decided during this session. The representative from OICA introduced WP.29-171-28 proposing to align the transitional provisions on those in the guidelines proposed in ECE/TRANS/WP.29/2017/53 as well as proposing alternative transitional provisions dates. The representative from Japan introduced WP.29-171-34 expressing concerns that the application date of the new technical requirements for all types of vehicles was decided without an ad hoc meeting of GRRF and that the application date could have some influence for existing models equipped with these functions being beneficial for safety that would need to be modified to comply with the 02 series of amendments to UN Regulation No.79. He proposed to discuss this issue before next June session and introduce a footnote in the Regulation stating that the date mentioned in para. 12.3 (“[2021/2024]”) may be reassessed at the 172nd session of WP.29. The representative of OICA welcomed the statements by the representative of Japan and explained that the proposed 02 series of amendments to UN Regulation No. 79 entailed far more than software changes and that the implications were far-reaching, as detailed in WP.29-171-28. The secretariat mentioned that the proposed footnote (if adopted) would not take effect before the potential entry into force of this 02 series, expected in January 2018 and proposed instead to insert the corresponding information in the session report, recalling the wish of Japan to reassess para. 12.3. at the June 2017 session of WP.29. The representative of EU mentioned that fatalities occurred in the past related to the misuse of these advanced technologies and informed about their mandate to vote in favour of the current proposed text at this session on the basis of the year 2021 as an application date.

70. Agenda item 4.7.3, Regulation No. 79, ECE/TRANS/WP.29/2017/10, amend the document as reproduced in Annex IV to the session report.

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.

45. The GRRF chair informed that GRRF reconfirmed ECE/TRANS/WP.29/2017/10 proposing a new series of amendments to Regulation No. 79 (Steering equipment) with provisions for Corrective Steering Function (CSF) and Automatically Commanded Steering Function (ACSF), but proposed amendments and clarifications to the document as reproduced in WP.29-171-06. He highlighted that some dates were still in square brackets.

69. Concerning the proposal under item 4.7.3., WP.29 took note that the technical provisions were proposed to WP.29 and AC.1 on the basis of a consensus by GRRF. The Chair of GRRF informed WP.29 that GRRF did not conclude their discussion on the dates of the transitional provisions, necessary for the introduction of the technical requirements as the 02 series of amendments to Regulation No. 79. WP.29, with the exception of Japan, agreed that this policy matter should be decided during this session. The representative from OICA introduced WP.29-171-28 proposing to align the transitional provisions on those in the guidelines proposed in ECE/TRANS/WP.29/2017/53 as well as proposing alternative transitional provisions dates. The representative from Japan introduced WP.29-171-34 expressing concerns that the application date of the new technical requirements for all types of vehicles was decided without an ad hoc meeting of GRRF and that the application date could have some influence for existing models equipped with these functions being beneficial for safety that would need to be modified to comply with the 02 series of amendments to UN Regulation No.79. He proposed to discuss this issue before next June session and introduce a footnote in the Regulation stating that the date mentioned in para. 12.3 (“[2021/2024]”) may be reassessed at the 172nd session of WP.29. The representative of OICA welcomed the statements by the representative of Japan and explained that the proposed 02 series of amendments to UN Regulation No. 79 entailed far more than software changes and that the implications were far-reaching, as detailed in WP.29-171-28. The secretariat mentioned that the proposed footnote (if adopted) would not take effect before the potential entry into force of this 02 series, expected in January 2018 and proposed instead to insert the corresponding information in the session report, recalling the wish of Japan to reassess para. 12.3. at the June 2017 session of WP.29. The representative of EU mentioned that fatalities occurred in the past related to the misuse of these advanced technologies and informed about their mandate to vote in favour of the current proposed text at this session on the basis of the year 2021 as an application date.

70. Agenda item 4.7.3, Regulation No. 79, ECE/TRANS/WP.29/2017/10, amend the document as reproduced in Annex IV to the session report.

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.

45. The GRRF chair informed that GRRF reconfirmed ECE/TRANS/WP.29/2017/10 proposing a new series of amendments to Regulation No. 79 (Steering equipment) with provisions for Corrective Steering Function (CSF) and Automatically Commanded Steering Function (ACSF), but proposed amendments and clarifications to the document as reproduced in WP.29-171-06. He highlighted that some dates were still in square brackets.

69. Concerning the proposal under item 4.7.3., WP.29 took note that the technical provisions were proposed to WP.29 and AC.1 on the basis of a consensus by GRRF. The Chair of GRRF informed WP.29 that GRRF did not conclude their discussion on the dates of the transitional provisions, necessary for the introduction of the technical requirements as the 02 series of amendments to Regulation No. 79. WP.29, with the exception of Japan, agreed that this policy matter should be decided during this session. The representative from OICA introduced WP.29-171-28 proposing to align the transitional provisions on those in the guidelines proposed in ECE/TRANS/WP.29/2017/53 as well as proposing alternative transitional provisions dates. The representative from Japan introduced WP.29-171-34 expressing concerns that the application date of the new technical requirements for all types of vehicles was decided without an ad hoc meeting of GRRF and that the application date could have some influence for existing models equipped with these functions being beneficial for safety that would need to be modified to comply with the 02 series of amendments to UN Regulation No.79. He proposed to discuss this issue before next June session and introduce a footnote in the Regulation stating that the date mentioned in para. 12.3 (“[2021/2024]”) may be reassessed at the 172nd session of WP.29. The representative of OICA welcomed the statements by the representative of Japan and explained that the proposed 02 series of amendments to UN Regulation No. 79 entailed far more than software changes and that the implications were far-reaching, as detailed in WP.29-171-28. The secretariat mentioned that the proposed footnote (if adopted) would not take effect before the potential entry into force of this 02 series, expected in January 2018 and proposed instead to insert the corresponding information in the session report, recalling the wish of Japan to reassess para. 12.3. at the June 2017 session of WP.29. The representative of EU mentioned that fatalities occurred in the past related to the misuse of these advanced technologies and informed about their mandate to vote in favour of the current proposed text at this session on the basis of the year 2021 as an application date.

70. Agenda item 4.7.3, Regulation No. 79, ECE/TRANS/WP.29/2017/10, amend the document as reproduced in Annex IV to the session report.

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.

24. The expert from Italy consulted GRRF (GRRF-82-04) on a proposal to develop an amendment to GTR No. 3 on motorcycle braking. He informed that Italy, at the forty-eighth session of AC.3, would propose to sponsor this amendment, harmonizing the provisions of the GTR and those in Regulation No. 78, dealing with Electromagnetic Compatibility (EMC), tri-cycles Anti-lock Braking Systems (ABS), Emergency Stop Signal and means to disable the ABS function (‘ABS switch’). The expert from Canada pointed out potential challenges related to the absence of specific EMC testing requirements for braking systems and the obligation to justify why mandating the fitment of ABS on tri-cycles. GRRF supported the content of GRRF-82-04. The expert from Italy volunteered to request the authorization to develop Amend. 3 to GTR No. 3 at the forty-eighth session of AC. 3 in November 2016.

143. The representative of Italy presented ECE/TRANS/WP.29/51 proposing that AC.3 authorize the development of an amendment to GTR No. 3 under the sponsorship of his country, in order to align the provisions of global technical regulation No. 3 with those of Regulation No. 78, to ensure electromagnetic immunity of ABS-systems, introduce ABS performance requirements for category 3-5 vehicles (three-wheelers), ensure uniform requirements for equipment such as Electronic Stop Signal System and the means to disable the ABS, if equipped. This amendment aimed to harmonize the global technical regulation with recent amendments of the UN Regulation No.78 and was submitted to AC.3 for consideration.

144. The AC.3 adopted the ECE/TRANS/WP.29/2017/51 and requested the secretariat to reproduce it as an AC.3 document for the fiftieth session of AC.3 in June 2017.

18. The expert from Italy introduced ECE/TRANS/WP.29/GRRF/2017/15 with provisions aimed at aligning the text of UN GTR No. 3 and UN Regulation No. 78 especially 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. The expert from Canada answered to the proposal (GRRF-84-10). The expert from Italy presented ECE/TRANS/WP.29/GRRF/2017/16 with the report on the activities related to the amendment proposal to UN GTR No.3. The expert from India informed GRRF about regulatory activities in his Country on the obligation to install ABS on new motorcycle with an engine capacity of 125 cm3 and more.

19. GRRF recommended the expert from Italy to keep the draft amendment to GTR No. 3 as harmonized as possible with UN Regulation No. 78 especially with regard to the ABS switch to avoid subsequent amendments to UN Regulation No. 78.

20. The expert from Italy agreed to submit a revised proposal for the February 2018 session of GRRF.

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.

18. The expert from Italy introduced ECE/TRANS/WP.29/GRRF/2017/15 with provisions aimed at aligning the text of UN GTR No. 3 and UN Regulation No. 78 especially 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. The expert from Canada answered to the proposal (GRRF-84-10). The expert from Italy presented ECE/TRANS/WP.29/GRRF/2017/16 with the report on the activities related to the amendment proposal to UN GTR No.3. The expert from India informed GRRF about regulatory activities in his Country on the obligation to install ABS on new motorcycle with an engine capacity of 125 cm3 and more.

19. GRRF recommended the expert from Italy to keep the draft amendment to GTR No. 3 as harmonized as possible with UN Regulation No. 78 especially with regard to the ABS switch to avoid subsequent amendments to UN Regulation No. 78.

20. The expert from Italy agreed to submit a revised proposal for the February 2018 session of GRRF.

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

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.

57. The GRRF chair mentioned that document ECE/TRANS/WP29/2018/35 would still contain square brackets. WP.29 agreed to remove the square brackets and to agree on transitional provision dates (as reflected in para. 92).

92. In ECE/TRANS/WP.29/2018/35, paragraphs 2.1.4., amend to read:

93. WP.29 noted the concern raised by the representative of OICA on the selection of an early date of application for the transitional provisions in paragraphs 12.2.3. and 12.2.4., which could create serious development difficulties, due to the introduction of new requirements compared to the very recently adopted 02 series of amendments, while vehicles are currently under development for the latter.

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.

45. The GRRF chair informed that GRRF reconfirmed ECE/TRANS/WP.29/2017/10 proposing a new series of amendments to Regulation No. 79 (Steering equipment) with provisions for Corrective Steering Function (CSF) and Automatically Commanded Steering Function (ACSF), but proposed amendments and clarifications to the document as reproduced in WP.29-171-06. He highlighted that some dates were still in square brackets.

69. Concerning the proposal under item 4.7.3., WP.29 took note that the technical provisions were proposed to WP.29 and AC.1 on the basis of a consensus by GRRF. The Chair of GRRF informed WP.29 that GRRF did not conclude their discussion on the dates of the transitional provisions, necessary for the introduction of the technical requirements as the 02 series of amendments to Regulation No. 79. WP.29, with the exception of Japan, agreed that this policy matter should be decided during this session. The representative from OICA introduced WP.29-171-28 proposing to align the transitional provisions on those in the guidelines proposed in ECE/TRANS/WP.29/2017/53 as well as proposing alternative transitional provisions dates. The representative from Japan introduced WP.29-171-34 expressing concerns that the application date of the new technical requirements for all types of vehicles was decided without an ad hoc meeting of GRRF and that the application date could have some influence for existing models equipped with these functions being beneficial for safety that would need to be modified to comply with the 02 series of amendments to UN Regulation No.79. He proposed to discuss this issue before next June session and introduce a footnote in the Regulation stating that the date mentioned in para. 12.3 (“[2021/2024]”) may be reassessed at the 172nd session of WP.29. The representative of OICA welcomed the statements by the representative of Japan and explained that the proposed 02 series of amendments to UN Regulation No. 79 entailed far more than software changes and that the implications were far-reaching, as detailed in WP.29-171-28. The secretariat mentioned that the proposed footnote (if adopted) would not take effect before the potential entry into force of this 02 series, expected in January 2018 and proposed instead to insert the corresponding information in the session report, recalling the wish of Japan to reassess para. 12.3. at the June 2017 session of WP.29. The representative of EU mentioned that fatalities occurred in the past related to the misuse of these advanced technologies and informed about their mandate to vote in favour of the current proposed text at this session on the basis of the year 2021 as an application date.

70. Agenda item 4.7.3, Regulation No. 79, ECE/TRANS/WP.29/2017/10, amend the document as reproduced in Annex IV to the session report.

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.

56. GRRF adopted GRRF-82-12-Rev.3, subject to confirmation in January 2017 by GRRF, and requested the secretariat to submit it to WP.29 and AC.1 as a draft Supplement 6 to the 01 series of amendments to Regulation No. 79 (Steering equipment) for consideration and vote in March 2017.

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.

48. The expert from OICA introduced ECE/TRANS/WP.29/GRRF/2017/23 as amended by GRRF-84-22 with provisions to be included in UN Regulations Nos. 13, 13-H, 79 and 140 related to the stability control warning activation by Corrective Steering Functions and Automatically Commanded Steering Functions. The proposal received some comments. GRRF amended the proposal as reflected in GRRF-84-39.

49. GRRF agreed with the proposal as amended by Annex V of the GRRF session report and requested the secretariat to submit it [together with GRRF-84-22] as draft supplements to Regulations Nos. 13, 13-H, 79 and 140 to WP.29 and AC.1 for consideration and vote at their March 2018 sessions.

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.

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.

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.

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.

21. The expert from Poland introduced ECE/TRANS/WP.29/GRRF/2016/32 proposing to introduce requirements in Regulation No. 55 imposing that a coupling device can only be installed on an M1 vehicle which was designed for its installation. The intention of the proposal received a general support. The expert from Denmark proposed that it should also apply to vehicles of category N1. The experts from the Netherlands and Spain noted that the text of the Regulation already contained provisions in that sense (a list with such provisions is available in the IWG working paper R55-07-06). GRRF supported the idea proposed and agreed to revisit this item at its January 2017 session on the basis of a revised proposal that the experts from Denmark, the Netherlands, Poland and Spain volunteered to prepare.

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.

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.

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.

45. The GRRF chair informed that GRRF reconfirmed ECE/TRANS/WP.29/2017/10 proposing a new series of amendments to Regulation No. 79 (Steering equipment) with provisions for Corrective Steering Function (CSF) and Automatically Commanded Steering Function (ACSF), but proposed amendments and clarifications to the document as reproduced in WP.29-171-06. He highlighted that some dates were still in square brackets.

69. Concerning the proposal under item 4.7.3., WP.29 took note that the technical provisions were proposed to WP.29 and AC.1 on the basis of a consensus by GRRF. The Chair of GRRF informed WP.29 that GRRF did not conclude their discussion on the dates of the transitional provisions, necessary for the introduction of the technical requirements as the 02 series of amendments to Regulation No. 79. WP.29, with the exception of Japan, agreed that this policy matter should be decided during this session. The representative from OICA introduced WP.29-171-28 proposing to align the transitional provisions on those in the guidelines proposed in ECE/TRANS/WP.29/2017/53 as well as proposing alternative transitional provisions dates. The representative from Japan introduced WP.29-171-34 expressing concerns that the application date of the new technical requirements for all types of vehicles was decided without an ad hoc meeting of GRRF and that the application date could have some influence for existing models equipped with these functions being beneficial for safety that would need to be modified to comply with the 02 series of amendments to UN Regulation No.79. He proposed to discuss this issue before next June session and introduce a footnote in the Regulation stating that the date mentioned in para. 12.3 (“[2021/2024]”) may be reassessed at the 172nd session of WP.29. The representative of OICA welcomed the statements by the representative of Japan and explained that the proposed 02 series of amendments to UN Regulation No. 79 entailed far more than software changes and that the implications were far-reaching, as detailed in WP.29-171-28. The secretariat mentioned that the proposed footnote (if adopted) would not take effect before the potential entry into force of this 02 series, expected in January 2018 and proposed instead to insert the corresponding information in the session report, recalling the wish of Japan to reassess para. 12.3. at the June 2017 session of WP.29. The representative of EU mentioned that fatalities occurred in the past related to the misuse of these advanced technologies and informed about their mandate to vote in favour of the current proposed text at this session on the basis of the year 2021 as an application date.

70. Agenda item 4.7.3, Regulation No. 79, ECE/TRANS/WP.29/2017/10, amend the document as reproduced in Annex IV to the session report.

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.

57. The GRRF chair mentioned that document ECE/TRANS/WP29/2018/35 would still contain square brackets. WP.29 agreed to remove the square brackets and to agree on transitional provision dates (as reflected in para. 92).

92. In ECE/TRANS/WP.29/2018/35, paragraphs 2.1.4., amend to read:

93. WP.29 noted the concern raised by the representative of OICA on the selection of an early date of application for the transitional provisions in paragraphs 12.2.3. and 12.2.4., which could create serious development difficulties, due to the introduction of new requirements compared to the very recently adopted 02 series of amendments, while vehicles are currently under development for the latter.

45. The GRRF chair informed that GRRF reconfirmed ECE/TRANS/WP.29/2017/10 proposing a new series of amendments to Regulation No. 79 (Steering equipment) with provisions for Corrective Steering Function (CSF) and Automatically Commanded Steering Function (ACSF), but proposed amendments and clarifications to the document as reproduced in WP.29-171-06. He highlighted that some dates were still in square brackets.

69. Concerning the proposal under item 4.7.3., WP.29 took note that the technical provisions were proposed to WP.29 and AC.1 on the basis of a consensus by GRRF. The Chair of GRRF informed WP.29 that GRRF did not conclude their discussion on the dates of the transitional provisions, necessary for the introduction of the technical requirements as the 02 series of amendments to Regulation No. 79. WP.29, with the exception of Japan, agreed that this policy matter should be decided during this session. The representative from OICA introduced WP.29-171-28 proposing to align the transitional provisions on those in the guidelines proposed in ECE/TRANS/WP.29/2017/53 as well as proposing alternative transitional provisions dates. The representative from Japan introduced WP.29-171-34 expressing concerns that the application date of the new technical requirements for all types of vehicles was decided without an ad hoc meeting of GRRF and that the application date could have some influence for existing models equipped with these functions being beneficial for safety that would need to be modified to comply with the 02 series of amendments to UN Regulation No.79. He proposed to discuss this issue before next June session and introduce a footnote in the Regulation stating that the date mentioned in para. 12.3 (“[2021/2024]”) may be reassessed at the 172nd session of WP.29. The representative of OICA welcomed the statements by the representative of Japan and explained that the proposed 02 series of amendments to UN Regulation No. 79 entailed far more than software changes and that the implications were far-reaching, as detailed in WP.29-171-28. The secretariat mentioned that the proposed footnote (if adopted) would not take effect before the potential entry into force of this 02 series, expected in January 2018 and proposed instead to insert the corresponding information in the session report, recalling the wish of Japan to reassess para. 12.3. at the June 2017 session of WP.29. The representative of EU mentioned that fatalities occurred in the past related to the misuse of these advanced technologies and informed about their mandate to vote in favour of the current proposed text at this session on the basis of the year 2021 as an application date.

70. Agenda item 4.7.3, Regulation No. 79, ECE/TRANS/WP.29/2017/10, amend the document as reproduced in Annex IV to the session report.

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.

13. The expert from CLEPA presented ECE/TRANS/WP.29/GRRF/2016/27, as amended by GRRF-82-03. GRRF supported the aim of this proposal. The proposal received several comments of editorial nature. GRRF agreed to keep both documents on the agenda of the next GRRF session.

13. The expert from CLEPA introduced ECE/TRANS/WP.29/GRRF/2017/11 with a clarification of Footnote 12. GRRF adopted this proposal.

15. GRRF requested the secretariat to submit the three official documents above as draft Supplement 15 to the 11 series of amendments to Regulation No. 13 for consideration and vote by WP.29 and AC.1 at their March 2018 session.

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.

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.

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.

90. In ECE/TRANS/WP.29/2018/9, Annex 21, paragraph 2.1.4., second subparagraph, amend to read:

“Additionally, interventions by systems related to the vehicle stability function (including traction control, trailer stability assist, corner brake control, other similar functions that use throttle individual torque control to operate and share common components with vehicle stability function, and ESC or VSF intervention on the steering angle of one or more wheels for the purpose of vehicle stability) may also be indicated to the driver by this flashing optical warning signal.”

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.

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.

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.

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.

For agenda item 4.8.3., document ECE/TRANS/WP.29/2017/70:

In para. 2.16., for "28.5.5. " read “28.5”.

In para. 6.2.1., for “D is the conventional…”, read : “d is the conventional…”

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.

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.

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.

53. The expert from Germany introduced ECE/TRANS/WP.29/GRRF/2016/45, containing four options as possible ways forward to progress on ACSF. The Secretary of the IWG on Automatically Commanded Steering Function (ACSF) gave a presentation reporting on the progress made by the group (GRRF-82-17). He reported on definitions proposed for ACSF of Categories A to E, clarifications proposed for Corrective Steering Functions (CSF) and new provisions proposed for RCP. GRRF acknowledged the status report received and agreed to work on an amendment to Option 4 as proposed by GRRF-82-12. The proposal for Option 4 received several comments in GRRF-82-08, GRRF-82-09, GRRF-82-14, GRRF-82-15, GRRF-82-18, GRRF-82-19 and GRRF-82-26.

59. The expert from the European Commission presented GRRF-82-18 reporting on research activities looking for ways to improve Annex 6 on Complex Electronic Systems in Regulation No. 79 and introducing GRRF-82-19 with amendments to this annex. GRRF requested the secretariat to distribute GRRF-82-19 with an official symbol at its next session.

57. The GRRF chair mentioned that document ECE/TRANS/WP29/2018/35 would still contain square brackets. WP.29 agreed to remove the square brackets and to agree on transitional provision dates (as reflected in para. 92).

92. In ECE/TRANS/WP.29/2018/35, paragraphs 2.1.4., amend to read:

93. WP.29 noted the concern raised by the representative of OICA on the selection of an early date of application for the transitional provisions in paragraphs 12.2.3. and 12.2.4., which could create serious development difficulties, due to the introduction of new requirements compared to the very recently adopted 02 series of amendments, while vehicles are currently under development for the latter.

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.

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.

35. The expert from ETRTO presented ECE/TRANS/WP.29/GRRF/2016/38, proposing amendments on tyre markings, similar amendments to those proposed by the expert from France (see ECE/TRANS/WP.29/GRRF/2016/37) and harmonized provisions with those in another EU Regulation (namely Regulation EU 167/2013) which defines vehicles of Category S as “interchangeable towed equipment”. GRRF amended the proposal, as reflected in GRRF-82-24-Rev.1.