11. The representative from CITA introduced GRPE-79-06 on the highlights of the CITA annual congress held in Republic of Korea in April 2019. He summarized the latest updates on emissions measurements during PTI tests. The Chair highlighted the importance of the topic and recalled it has been included in the draft priority list of GRPE (see para. 6).

12. The representative from Spain referred to the measurement of particulate number (PN) and asked whether a mature technology to measure PN during PTI tests was available on the market. The representative from CITA explained that the technology was mature and that some countries were about to implement PN measurements during PTI tests in the coming years, in the 2020/2021 time horizon. The representative from Netherlands confirmed PN tests are expected in 2021. He also highlighted the importance of in-use emission monitoring in the rapid technology changes the vehicle industry is facing, with digitalization, over-the-air updates and self-learning features that need to be considered.

13. The representative from CITA introduced GRPE-79-05 proposing amendments to the 06 and 07 series of amendments to UN Regulation No. 83. The representative from EC wondered if the proposed new paragraph 5.1.9. would not be more appropriate in UN Regulation No. 49 where there is evidence of Selective Catalytic Reduction (SCR) tampering of heavy-duty vehicle was better documented. The representative from CITA reckoned the issue with SCR tampering in heavy-duty applications was existing and documented and clarified the intention to amend UN Regulation No. 83 was to anticipate expected future issues for light-duty vehicles.

14. The representative from OICA stated the proposed amendment implied physical changes to existing vehicles for infrequent road worthiness tests. He added that such proposal does not make tampering more difficult. He said a better way would be to address the offer of tampering devices, for example following the initiative from Austria legally prohibiting the sale and advertisement of tampering devices. He did not support the proposal and encouraged closer collaboration with CITA to improve the situation of road-side and inspection tests. The representative from CITA agreed the proposal needed to be strengthened, and this proposal was a first step. He said that authorities performing road worthiness tests needed to be able to measure emissions to characterize tampering, which was not often the case today, partly because of lack of access to software and sensors signals of the vehicles.

15. The Chair highlighted undertaking the issue of tampering was an ample strategy needing diverse approaches to it, through vehicle design, PTI, roadside inspection, market availability, etc. and invited CITA to table a working document for the next session of GRPE in January 2020, in close collaboration with EC, OICA and other interested stakeholders.

16. The expert from OICA introduced GRPE-79-10 requiring clarification on the consolidation of ECE/TRANS/GRPE/2017/2 into UN Regulation No. 83. The representative from EC suggested that the issue identified could originate from how the document was drafted. The Chair accepted the request for clarification was valid and acknowledged the request for guidance from GRPE on consolidation interpretation when needed. The representative from the Russian Federation, as submitter of ECE/TRANS/GRPE/2017/2, confirmed that the new text is an addition to the existing paragraph, not a substitution. The Chair confirmed that paragraph 1.1. consolidated with Supplement 10 and 5 to the 06 and 07 series of amendments to UN Regulation No. 83 should read:

17. The expert from OICA updated GRPE on the status of the work related to propose an amendment to UN Regulation No. 101 (GRPE-79-11) to accept the tests currently performed in the European Union in the interest of correlation between NEDC and WLTP outside of the European Union where such correlation does not exist. The representative of Australia described the measure taken in the country to accept approvals based on WLTP and still rely on NEDC-based values for fiscal and labelling purposes.

18. The expert from OICA introduced GRPE-79-15, GRPE-79-16 and GRPE-79-17 proposing modifications to the 07 series of amendments to UN Regulation No. 83 on On-Board Diagnosis (OBD). The representative from Netherlands, France and EC required more time to analyse the proposals and to consult internally with the appropriate experts on OBD. The representative from EC requested a more thorough assessment and more detailed specifications of the needs and requirements to amend the regulatory text. The Chair acknowledged that the specific expertise on OBD from CPs was in most cases not present in the room and proposed OICA to further develop the proposals and submit as working documents for the next session of GRPE in January 2020.