41. The World Forum recalled the report of the Chair of GRPE on its seventy-eighth session (ECE/TRANS/WP.29/GRPE/78) and approved the report.

Amendments to GTR (WLTP) as approved by GRPE based upon documents GRPE/2019/2 and GRPE-78-25/Rev.1. The amendment package will be sent to WP.29 for consideration during its June 2019 session.

13. The expert from EC, leading the drafting coordination of IWG on WLTP, introduced ECE/TRANS/WP.29/GRPE/2019/2, GRPE-78-21-Rev.1 and GRPE-78-25-Rev.1 proposing the draft Amendment 5 to UN GTR No. 15. as well as the corresponding report GRPE-78-03-Rev.1 on the development of this amendment.

14. GRPE adopted ECE/TRANS/WP.29/GRPE/2019/2 and GRPE-78-21-Rev.1 as amended by Addendum 1 to this report and requested the secretariat to submit it to WP.29 and the Executive Committee of the 1998 Agreement (AC.3) for consideration and vote at their June 2019 sessions as draft Amendment 5 to UN GTR No. 15. GRPE also adopted the technical report (GRPE-78-03-Rev.1) as reproduced in Annex VII. GRPE requested the secretariat to submit Addendum 1 and Annex VII of the session report to WP.29 and AC.3 for consideration and vote at their June 2019 sessions.

41. The World Forum recalled the report of the Chair of GRPE on its seventy-eighth session (ECE/TRANS/WP.29/GRPE/78) and approved the report.

Amendment 2 to UN GTR No. 19 (WLTP EVAP) as approved by GRPE based upon documents GRPE/2019/4 and GRPE-78-28.

15. As introduced by the secretary of the task force on evaporative emissions, GRPE also adopted ECE/TRANS/WP.29/GRPE/2019/4 (amended by GRPE-78-28) as reproduced in Addendum 2 to this report, proposing draft Amendment 2 to the UN GTR No. 19 (WLTP EVAP) as well as the corresponding report on the development of this amendment (GRPE-78-09) as reproduced in Annex VIII. GRPE requested the secretariat to submit Addendum 2 and Annex VIII to WP.29 and AC.3 for consideration and vote at their June 2019 sessions as draft Amendment 2 to UN GTR No. 19.

41. The World Forum recalled the report of the Chair of GRPE on its seventy-eighth session (ECE/TRANS/WP.29/GRPE/78) and approved the report.

2. Mr. Rijnders, Chair of GRPE, opened the meeting, welcomed the participants and expressed the best wishes for the New Year. GRPE adopted the provisional agenda of the seventy-eighth session (ECE/TRANS/WP.29/GRPE/2019/1), as updated and consolidated in GRPE-78-11-Rev.3. GRPE took note of GRPE-78-01-Rev.1 on the organization of GRPE Informal Working Group (IWG) meetings held during the week.

4. The secretariat introduced GRPE-78-02, announcing that the next GRPE session would take place on from 21 to 24 May 2019 and recalling the corresponding deadline (25 February 2019) for the submission of official documents. The Chairs and Secretaries of IWGs were invited to approach the secretariat to define the calendar of IWGs meetings for the May 2019 GRPE session.

13. The expert from EC, leading the drafting coordination of IWG on WLTP, introduced ECE/TRANS/WP.29/GRPE/2019/2, GRPE-78-21-Rev.1 and GRPE-78-25-Rev.1 proposing the draft Amendment 5 to UN GTR No. 15. as well as the corresponding report GRPE-78-03-Rev.1 on the development of this amendment.

14. GRPE adopted ECE/TRANS/WP.29/GRPE/2019/2 and GRPE-78-21-Rev.1 as amended by Addendum 1 to this report and requested the secretariat to submit it to WP.29 and the Executive Committee of the 1998 Agreement (AC.3) for consideration and vote at their June 2019 sessions as draft Amendment 5 to UN GTR No. 15. GRPE also adopted the technical report (GRPE-78-03-Rev.1) as reproduced in Annex VII. GRPE requested the secretariat to submit Addendum 1 and Annex VII of the session report to WP.29 and AC.3 for consideration and vote at their June 2019 sessions.

26. The expert from CITA introduced GRPE-78-04 detailing some methods to manipulate emission control devices in light and heavy-duty vehicles. He called for further actions within GRPE to prevent manipulations of emission control systems. The Chair highlighted that GRPE would be the appropriate body to tackle those issues but also recognized the important role that IWG on Periodic Technical Inspection (PTI) had to make proposals to address the issues highlighted by the representative from CITA.

27. The expert from Austria supported the findings and the position from the expert from CITA. He shared the view that Type Approval (TA) and PTI are strongly connected and that activities to better link those two should start as soon as possible. The expert from Poland agreed that most air pollution was from older vehicles, and that fleet renewal must be accelerated. He acknowledged that PTI cannot capture all tampering as it stood, and that a more systematic use of Mini Portable Emission Measurement System (PEMS) might have helped solve the issue. The expert from OICA called for a holistic approach, that includes individual behavioural aspects to tampering.

28. The representative from EC stated that she was well aware of the issue and highlighted the fact that PTI tests had historically been developed elsewhere and included in TA legislation as Type II tests, as it required a simple and cheap test procedure. The secretariat reminded that all parties, including NGOs were allowed to submit proposals under the 1958 Agreement.

29. The Chair recalled that the mandate of GRPE also include legal provisions for the whole life of the vehicle and called for discussions on improvements to the PTI test to take place in the forthcoming sessions of GRPE.

58. The GRPE Ambassador to IWG on International Whole Vehicle Type Approval (IWVTA) introduced GRPE-78-05-Rev.1 which lists the GRPE-related UN Regulations and their status for a potential inclusion in UN Regulation No. 0. The secretariat informed GRPE that GRPE, as a formal body under WP.29, can decide on which UN Regulations to include, taking the opinion of IWG on IWVTA into account.

59. The representatives from Switzerland, UK and EC supported the inclusion of UN Regulation No. 133 into UN Regulation No. 0. The Chair also indicated that UN Regulation is part of the European Union Whole Vehicle Type Approval (EUWVTA), and therefore there should not weaken national legislations because of IWVTA.

60. The representative from Japan did not support the introduction of UN Regulations Nos. 24, 49 and 133 into UN Regulation No. 0.

61. The secretariat and Chair informed GRPE that candidate UN Regulations to UN Regulation No. 0 are reviewed annually and that the possibility of Limited IWVTA (L-IWVTA) existed for Contracting Parties not willing to accept Uniform IWVTA (U-IWVTA).

62. GRPE requested Contracting Parties to raise their interest at the next IWVTA meeting in March 2019 to work on UN Regulations, such as UN Regulations Nos. 24 and 49 that need to be split to be included into UN Regulation No. 0.

63. The GRPE Ambassador to IWG on IWVTA introduced GRPE-78-06 which reviews the provisions about approval numbering in UN Regulations developed and maintained by GRPE. He highlighted, for example, the impossibility for certain characters to be used in approval numbering such as “*” that were used in UN Regulations Nos. 115 and 143 to specify fuel type.

64. The Chair asked each Contracting Party to request their Type Approval Authorities if the approval numbering was in compliance with Schedule 4 of the 58 Agreement.

65. The representatives from France, the Netherlands and UK committed themselves to internally verify this compliance.

Proposal to expand the scope of UN R24 to include Category T vehicles (agricultural and forestry tractors).

36. The expert from the Russian Federation introduced GRPE-78-07 on a proposal to extend the scope of UN Regulation No. 24 to agricultural vehicles of Category T. The expert from EC stated that vehicles of Category T were covered by UN Regulations No. 96 and 120 instead of UN Regulation No. 24. The representatives from Italy, UK, EC and EUROMOT expressed positions against the proposal. GRPE rejected the adoption of GRPE-78-07.

6. The Secretary introduced GRPE-78-08 and reported on relevant items discussed during the 175th and 176th sessions of the World Forum for Harmonization of Vehicle Regulations (WP.29). He referred to ECE/TRANS/WP.29/1138 and ECE/TRANS/WP.29/1139 for further details.

15. As introduced by the secretary of the task force on evaporative emissions, GRPE also adopted ECE/TRANS/WP.29/GRPE/2019/4 (amended by GRPE-78-28) as reproduced in Addendum 2 to this report, proposing draft Amendment 2 to the UN GTR No. 19 (WLTP EVAP) as well as the corresponding report on the development of this amendment (GRPE-78-09) as reproduced in Annex VIII. GRPE requested the secretariat to submit Addendum 2 and Annex VIII to WP.29 and AC.3 for consideration and vote at their June 2019 sessions as draft Amendment 2 to UN GTR No. 19.

Proposal from the GRPE secretariat to correct omissions found in document WP.29/2018/148 (proposal for Supplement 8 to the 07 series of amendments) as adopted by WP.29. This document can also be downloaded in marked up .pdf and word versions with tracked changes.

8. The secretariat introduced GRPE-78-10 correcting omissions in ECE/TRANS/WP.29/2018/148 adopted in the November 2018 session of WP.29. GRPE adopted GRPE-78-10 as reproduced in Annex V to the session report.

10. GRPE requested the secretariat to submit Annexes IV and VI of the report to WP.29 and Administrative Committee of the 1958 Agreement (AC.1) for consideration and vote at their June 2019 sessions as draft Supplement 13 and 9 to the 06 and 07 series of amendments to UN Regulation No. 83 respectively. GRPE also requested to submit Annex V of the report to WP.29 and AC.1 for consideration and vote at their June 2019 sessions as draft Corrigendum 1 to Supplement 8 to the 07 series of amendments to UN Regulation No. 83.

2. Mr. Rijnders, Chair of GRPE, opened the meeting, welcomed the participants and expressed the best wishes for the New Year. GRPE adopted the provisional agenda of the seventy-eighth session (ECE/TRANS/WP.29/GRPE/2019/1), as updated and consolidated in GRPE-78-11-Rev.3. GRPE took note of GRPE-78-01-Rev.1 on the organization of GRPE Informal Working Group (IWG) meetings held during the week.

42. The Chair of IWG on Particle Measurement Programme (PMP) presented a status report on activities on exhaust and non-exhaust particle emissions (GRPE-78-12-Rev.1). He informed GRPE about a change of secretary of IWG and informed GRPE about a change in timeline to deliver more rapidly a methodology to measure sub-23 nm exhaust particles. He noted that the timeline for the other activities of the group were not impacted by this anticipated delivery for sub-23 nm particles measurement provisions.

43. The representative from EC welcomed the decision to prioritize the work on the sub-23 nm exhaust particles measurement. She emphasized that EC would do their best to provide a drafting coordinator to assist the activities of IWGs on PMP, RDE and WLTP.

44. GRPE acknowledged the progress made by IWG on PMP and noted that the group had not requested a meeting room for the GRPE week in May 2019.

12. The Chair of IWG on the Worldwide harmonized Light vehicles Test Procedures (WLTP) reported on the ongoing activities (GRPE-78-13). He reported on the progress of the different task forces under this IWG and stated that a delay is to be expected in the development of the low temperature test provisions for WLTP.

16. The expert from EC, leading the task force on the transposition of WLTP into a UN Regulation annexed to the 1958 Agreement, introduced GRPE-78-14-Rev.1 on the activities of his group. He reported on an alternative concept to transpose UN GTR No.15 into a UN Regulation to avoid disharmonization by including Level 1a (Europe) in the 08 series of amendment to UN Regulation No. 83. He detailed why the representatives from Japan objected to the proposal during a recent meeting of the task force.

17. He highlighted a request for the work on the transposition to be delayed by six months, with a draft working document to be proposed for the January 2020 session of GRPE. EC and Japan backed this request for a delay.

18. He also underlined the urgency of the task force to work on the definition of the most stringent, harmonized level (so called Level 2). The Chair recalled the need for harmonization of the legal provisions for mutual recognition at the most stringent level. He emphasized that harmonization should not force Contracting Parties to reduce their national level of stringency in emission performance.

19. The representative from EC agreed with the Chair on the need for harmonization and committed the EC to arrange meetings to solve the remaining issues. She also reminded the need to include Real Driving Emissions (RDE) provision within the 58 Agreement to be in line with the latest legislative developments in Europe.

20. The representative from Japan also agreed with the objective of harmonization.

21. The representative from OICA thanked the positive feedback from the chair, EC and Japan on reaching harmonization and reminded GRPE that harmonization had to be technically and economically feasible and insisted industry stakeholders remain available to be involved in any forthcoming discussions.

22. GRPE noted the request for a meeting room for one and half day during the GRPE week in May 2019.

31. The expert from OICA introduced GRPE-78-15 and summarized the workshop on the harmonization of heavy duty fuel economy measurements held by OICA earlier during the GRPE week. He thanked the secretariat for the assistance in organizing the event. He highlighted the high level of interest shown by all parties involved in the workshop.

32. The Chair encouraged GRPE to start activities in this topic. He suggested a follow-up workshop in January 2020 to gauge progress. The expert from OICA confirmed activities on this topic is of high priority to them, and he confirmed his willingness to organize such a workshop prior to the January 2020 session of GRPE.

Proposal for amendments to the draft supplements to the 06 and 07 series of amendments to:

1. correct errors in Working Paper 2019.08,
2. expand 2019.08 to clarify the special provisions, and
3. resolve a current contradiction of requirements concerning the provision of SCR reagent consumption data via the serial port of the standard diagnostic connector.

7. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2019/8 and GRPE-78-27 clarifying the relationship between approval levels, reference fuels and particulate number limits for positive ignition engines and to modify the calculation formulae for determining evaporative emissions in accordance with changes already agreed in UN GTR No. 19. He stated that GRPE-78-27 superseded GRPE-78-16 and GRPE-78-16 has therefore not been introduced. He stated that some amendments were about harmonizing national legislation and SAE standards. The Chair insisted that ISO or SAE standards should fit the needs of UN Regulations and not that UN Regulations should align with ISO/SAE standards. The representative from the EC opposed to the change on SCR provisions and accepted the other amendments proposed. The representative from the UK and EC sought clarifications on the use of characters to reflect emission levels. The experts from EC and UK proposed minor corrections to ECE/TRANS/WP.29/GRPE/2019/8 and GRPE-78-27 that GRPE adopted as reproduced in Annex IV to the session report.

57. The representative from OICA introduced GRPE-78-17, GRPE-78-18 and GRPE 78 19 proposing a scheme to maintain M.R.2. The Chair acknowledged the potential benefits of maintaining M.R.2 but required more time to find the best way forward. He invited each Contracting Party to consult internally on how to best perform this activity in the future. The representative from EC supported the future work on such activity.

57. The representative from OICA introduced GRPE-78-17, GRPE-78-18 and GRPE 78 19 proposing a scheme to maintain M.R.2. The Chair acknowledged the potential benefits of maintaining M.R.2 but required more time to find the best way forward. He invited each Contracting Party to consult internally on how to best perform this activity in the future. The representative from EC supported the future work on such activity.

57. The representative from OICA introduced GRPE-78-17, GRPE-78-18 and GRPE 78 19 proposing a scheme to maintain M.R.2. The Chair acknowledged the potential benefits of maintaining M.R.2 but required more time to find the best way forward. He invited each Contracting Party to consult internally on how to best perform this activity in the future. The representative from EC supported the future work on such activity.

Presentation raising concerns during the transition from NEDC to WLTP and proposing measures to facilitate this transition pending adoption of WLTP under the 1958 Agreement.

11. The expert from OICA introduced GRPE-78-20 proposing to amend UN Regulation No.101 to permit the measurement of fuel and energy consumption and CO2 emissions using road loads which are calculated according to the method used in EU correlation. The representative from EC sought clarifications on the use of CO2MPAS for this proposal. The representative from OICA explained that CO2MPAS formula are expected to be used for the calculation of road load coefficients, without using the CO2MPAS software itself. The representative from EC backed the proposal and requested that the EU JRC be involved in developing the working document. The Chair thanked the representative from OICA for initiating this effort and for making the latest legislative provisions available to all Contracting Parties.

Proposals from the WLTP informal group to clarify and make editorial corrections to its original submission (document GRPE/2019/2).

13. The expert from EC, leading the drafting coordination of IWG on WLTP, introduced ECE/TRANS/WP.29/GRPE/2019/2, GRPE-78-21-Rev.1 and GRPE-78-25-Rev.1 proposing the draft Amendment 5 to UN GTR No. 15. as well as the corresponding report GRPE-78-03-Rev.1 on the development of this amendment.

14. GRPE adopted ECE/TRANS/WP.29/GRPE/2019/2 and GRPE-78-21-Rev.1 as amended by Addendum 1 to this report and requested the secretariat to submit it to WP.29 and the Executive Committee of the 1998 Agreement (AC.3) for consideration and vote at their June 2019 sessions as draft Amendment 5 to UN GTR No. 15. GRPE also adopted the technical report (GRPE-78-03-Rev.1) as reproduced in Annex VII. GRPE requested the secretariat to submit Addendum 1 and Annex VII of the session report to WP.29 and AC.3 for consideration and vote at their June 2019 sessions.

Proposal to correct and clarify provisions of the regulation.

9. The expert from EC introduced GRPE-78-22 introducing minor changes to the 06 and 07 series of amendments to UN Regulation No. 83. The representative from OICA agreed to the changes and expressed his wish to have the changes included as soon as possible in UN Regulation No. 83. The experts from EC, UK proposed minor corrections to GRPE-78-22 that GRPE adopted as reproduced in Annex VI to the session report.

10. GRPE requested the secretariat to submit Annexes IV and VI of the report to WP.29 and Administrative Committee of the 1958 Agreement (AC.1) for consideration and vote at their June 2019 sessions as draft Supplement 13 and 9 to the 06 and 07 series of amendments to UN Regulation No. 83 respectively. GRPE also requested to submit Annex V of the report to WP.29 and AC.1 for consideration and vote at their June 2019 sessions as draft Corrigendum 1 to Supplement 8 to the 07 series of amendments to UN Regulation No. 83.

23. The representative from EC introduced GRPE-78-23 detailing the latest activities from IWG on RDE. The Chair congratulated the members of IWG for their dedication and for the fast start of the activities within IWG. GRPE approved the approach to include all Contracting Parties into the work from the start and was looking forward to receiving the next update from IWG during the next GRPE session in May 2019.

24. The representative from EC also presented the draft terms of references for IWG on RDE (GRP-78-24). The timeline has been revised following comments received from WP.29 (ECE/TRANS/WP.29/1139, para. 60), with the updated mandate expiring in January 2021.

25. GRPE endorsed the terms of references for IWG on RDE.

46. The Chair of IWG on Environmental and Propulsion Performance Requirements for L-category vehicles (EPPR) presented a status report (GRPE-78-26). He updated GRPE on the progress in IWG on OBD2 and introduced two topics that IWG might be willing to tackle in the future, dealing with durability and propulsion performance of L-category vehicles.

47. GRPE acknowledged the progress made by IWG on EPPR and noted the request for a meeting room for one-and-half days during the GRPE week in May 2019.

Proposal for amendments to the draft supplements to the 06 and 07 series of amendments to:

1. correct errors in Working Paper 2019.08,
2. expand 2019.08 to clarify the special provisions, and
3. resolve a current contradiction of requirements concerning the provision of SCR reagent consumption data via the serial port of the standard diagnostic connector.

7. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2019/8 and GRPE-78-27 clarifying the relationship between approval levels, reference fuels and particulate number limits for positive ignition engines and to modify the calculation formulae for determining evaporative emissions in accordance with changes already agreed in UN GTR No. 19. He stated that GRPE-78-27 superseded GRPE-78-16 and GRPE-78-16 has therefore not been introduced. He stated that some amendments were about harmonizing national legislation and SAE standards. The Chair insisted that ISO or SAE standards should fit the needs of UN Regulations and not that UN Regulations should align with ISO/SAE standards. The representative from the EC opposed to the change on SCR provisions and accepted the other amendments proposed. The representative from the UK and EC sought clarifications on the use of characters to reflect emission levels. The experts from EC and UK proposed minor corrections to ECE/TRANS/WP.29/GRPE/2019/8 and GRPE-78-27 that GRPE adopted as reproduced in Annex IV to the session report.

10. GRPE requested the secretariat to submit Annexes IV and VI of the report to WP.29 and Administrative Committee of the 1958 Agreement (AC.1) for consideration and vote at their June 2019 sessions as draft Supplement 13 and 9 to the 06 and 07 series of amendments to UN Regulation No. 83 respectively. GRPE also requested to submit Annex V of the report to WP.29 and AC.1 for consideration and vote at their June 2019 sessions as draft Corrigendum 1 to Supplement 8 to the 07 series of amendments to UN Regulation No. 83.

Editorial corrections from the WLTP informal to its original submission.

15. As introduced by the secretary of the task force on evaporative emissions, GRPE also adopted ECE/TRANS/WP.29/GRPE/2019/4 (amended by GRPE-78-28) as reproduced in Addendum 2 to this report, proposing draft Amendment 2 to the UN GTR No. 19 (WLTP EVAP) as well as the corresponding report on the development of this amendment (GRPE-78-09) as reproduced in Annex VIII. GRPE requested the secretariat to submit Addendum 2 and Annex VIII to WP.29 and AC.3 for consideration and vote at their June 2019 sessions as draft Amendment 2 to UN GTR No. 19.

66. The Chair of IWG on Vehicles Interior Air Quality (VIAQ) presented a status report on the ongoing activities of the group (GRPE-78-29). He informed GRPE about the latest progress and the items agreed during the last IWG meetings, highlighting that the amendments to Mutual Resolution No. 3 were being developed according to schedule.

67. GRPE acknowledged the progress made by IWG on VIAQ and noted the request for no meeting room during the GRPE week in May 2019.

49. The Secretary of IWG on Electric Vehicles and the Environment (EVE) presented a status report on the on-going activities of IWG (GRPE-78-30-Rev.1).

50. She explained that the ongoing work on UN GTR on Determination of Electrified Vehicle Power (DEVP) had been delayed due to unexpected and inconsistent results obtained during the validation testing of the power measurement approaches, mainly regarding its reproducibility and repeatability. The delay in developing the UN GTR was expected to be at least half a year, and IWG had still not agreed on a new timeline for developing the draft proposal.

51. She reported on the activity on battery durability, where the activities had progressed well. She added that a consensus on the next steps for this research activities was still to be found.

52. She informed GRPE that IWG on EVE had made a presentation to the Cleaner Electricity Production (CEP) expert group of the Energy Division of ECE to seek their partnership on the project to assess upstream emissions from electric vehicles. The Secretary of GRPE agreed to follow-up with colleagues from ECE Energy Division.

53. GRPE reviewed and endorsed the request for authorization to develop the provisions on DEVP as a new UN GTR (ECE/TRANS/WP.29/2019/33), to be adopted during the March 2019 session of WP.29.

54. The representative from EC highlighted that the work done by IWG was very important, and that the activities should be undertaken at GRPE. She insisted on further efforts to finish the activities on time or risk that activities would have to be held at the national / regional level.

55. GRPE acknowledged the progress of IWG on EVE and encouraged the group to deliver on the important activities that are needed in many Contracting Parties. GRPE noted the request for a meeting room for half a day during the GRPE week in May 2019.

48. The Chair of IWG on EPPR briefly introduced the latest draft amendment to UN GTR No. 2 that is expected to be submitted as a working document for the next session of GRPE in May 2019.

68. The representative of EC informed GRPE that the EU had started the post-EURO 6 / VI legislative process, that was expected to last for about two years. She highlighted that the work undertaken at GRPE on, among other important activities, low temperature test, particulates measurement and electric-vehicle related activities were of paramount importance to the process and she encouraged the work to be performed by GRPE and finalized by 2020.

69. GRPE agreed to further discuss the issue during the next session in May 2019 to learn more about the potential impact of the EU process on post EURO 6 / VI on GRPE activities.

2. Mr. Rijnders, Chair of GRPE, opened the meeting, welcomed the participants and expressed the best wishes for the New Year. GRPE adopted the provisional agenda of the seventy-eighth session (ECE/TRANS/WP.29/GRPE/2019/1), as updated and consolidated in GRPE-78-11-Rev.3. GRPE took note of GRPE-78-01-Rev.1 on the organization of GRPE Informal Working Group (IWG) meetings held during the week.

Series of proposals from the WLTP informal group to improve and clarify the text of GTR 15 on light vehicle emissions. This document is also available with track changes: pdf version and doc version.

13. The expert from EC, leading the drafting coordination of IWG on WLTP, introduced ECE/TRANS/WP.29/GRPE/2019/2, GRPE-78-21-Rev.1 and GRPE-78-25-Rev.1 proposing the draft Amendment 5 to UN GTR No. 15. as well as the corresponding report GRPE-78-03-Rev.1 on the development of this amendment.

14. GRPE adopted ECE/TRANS/WP.29/GRPE/2019/2 and GRPE-78-21-Rev.1 as amended by Addendum 1 to this report and requested the secretariat to submit it to WP.29 and the Executive Committee of the 1998 Agreement (AC.3) for consideration and vote at their June 2019 sessions as draft Amendment 5 to UN GTR No. 15. GRPE also adopted the technical report (GRPE-78-03-Rev.1) as reproduced in Annex VII. GRPE requested the secretariat to submit Addendum 1 and Annex VII of the session report to WP.29 and AC.3 for consideration and vote at their June 2019 sessions.

Proposal to align UN R115 with the GTR No. 15 WLTC test cycle.

33. The expert from Italy presented ECE/TRANS/WP.29/GRPE/2019/3 which introduced a reference to WLTP as an alternative for emission tests stated in UN Regulation No. 115. GRPE adopted ECE/TRANS/WP.29/GRPE/2019/3.

34. GRPE requested the secretariat to submit ECE/TRANS/WP.29/GRPE/2019/3 to WP.29 and AC.1 for consideration and vote at their June 2019 sessions as draft Supplement 8 to UN Regulation No. 115.

Proposal to introduce improvements and amendments concerning the evaporative emission family definitions and the Type 4 test procedures with regard to test equipment requirements and calibrations, evaporative emission measurement enclosures, and use of variable volume SHED facilities. The document is also available in versions with track changes: pdf format and doc format.

15. As introduced by the secretary of the task force on evaporative emissions, GRPE also adopted ECE/TRANS/WP.29/GRPE/2019/4 (amended by GRPE-78-28) as reproduced in Addendum 2 to this report, proposing draft Amendment 2 to the UN GTR No. 19 (WLTP EVAP) as well as the corresponding report on the development of this amendment (GRPE-78-09) as reproduced in Annex VIII. GRPE requested the secretariat to submit Addendum 2 and Annex VIII to WP.29 and AC.3 for consideration and vote at their June 2019 sessions as draft Amendment 2 to UN GTR No. 19.

Proposal to clarify the meaning and use of “peripheral devices”.

56. The expert from EC with the support of the expert from UK introduced ECE/TRANS/WP.29/GRPE/2019/5 clarifying the definition of peripheral devices. GRPE adopted ECE/TRANS/WP.29/GRPE/2019/5 and requested the secretariat to submit it to WP.29 and AC.1 for consideration and vote at their June 2019 sessions as draft Amendment 1 to Mutual Resolution No. 2 (M.R.2).

Proposal to align the provisions of the 03 series of amendments to UN R24 with UN R85. Other amendments are proposed in order to bring the format of UN R24 up to date.

35. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2019/6 that aligns the provisions of the 03 series of amendments to UN Regulation No. 24 with UN Regulation No. 85 on engine power measurement. GRPE adopted ECE/TRANS/WP.29/GRPE/2019/6.

37. GRPE requested the secretariat to submit ECE/TRANS/WP.29/GRPE/2019/6 to WP.29 and the AC.1 for consideration and vote at their June 2019 sessions as draft Supplement 5 to the 03 series of amendments to UN Regulation No. 24.

Proposal to reduce testing burdens by introducing an alternative test method to “decrease the charge air cooler outlet temperature by the same amount that the ambient conditions for the vehicle test varied from the standard temperature.” This aligns with SAE J1349, “9.3 Application of Vehicle Transient Data to Net Power Test.”

38. The expert from OICA presented ECE/TRANS/WP.29/GRPE/2019/7 proposing to amend, in UN Regulation No. 85, the wording of the description of auxiliaries to be fitted for testing to reduce potential testing burden. The experts from Netherlands, France, UK and EC did not see the benefit in some part of the proposal and would only support the proposed amendments contained in the first paragraph of the proposal. GRPE adopted ECE/TRANS/WP.29/GRPE/2019/7 as amended by Annex IX.

39. GRPE requested the secretariat to submit Annex IX of the report to WP.29 and the AC.1 for consideration and vote at their June 2019 sessions as draft Supplement 9 to UN Regulation No. 85.

Proposal to clarify the relationship between approval levels, reference fuels and PN limits for PI vehicles and to modify the calculation formulae for determination of evaporative emissions in accordance with changes already agreed in UN GTR No. 19.

7. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2019/8 and GRPE-78-27 clarifying the relationship between approval levels, reference fuels and particulate number limits for positive ignition engines and to modify the calculation formulae for determining evaporative emissions in accordance with changes already agreed in UN GTR No. 19. He stated that GRPE-78-27 superseded GRPE-78-16 and GRPE-78-16 has therefore not been introduced. He stated that some amendments were about harmonizing national legislation and SAE standards. The Chair insisted that ISO or SAE standards should fit the needs of UN Regulations and not that UN Regulations should align with ISO/SAE standards. The representative from the EC opposed to the change on SCR provisions and accepted the other amendments proposed. The representative from the UK and EC sought clarifications on the use of characters to reflect emission levels. The experts from EC and UK proposed minor corrections to ECE/TRANS/WP.29/GRPE/2019/8 and GRPE-78-27 that GRPE adopted as reproduced in Annex IV to the session report.

10. GRPE requested the secretariat to submit Annexes IV and VI of the report to WP.29 and Administrative Committee of the 1958 Agreement (AC.1) for consideration and vote at their June 2019 sessions as draft Supplement 13 and 9 to the 06 and 07 series of amendments to UN Regulation No. 83 respectively. GRPE also requested to submit Annex V of the report to WP.29 and AC.1 for consideration and vote at their June 2019 sessions as draft Corrigendum 1 to Supplement 8 to the 07 series of amendments to UN Regulation No. 83.