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Informal Document GRPE-78-16

Document Title UN R83: Proposal for amendments, including to document GRPE/2019/8
Reference Number GRPE-78-16
Origin OICA
Document Date 9 January 2019
Document Posted 9 January 2019
Meeting Session(s)

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 He stated that GRPE-78-27 superseded GRPE-78-16 and GRPE-78-16 has therefore not been introduced.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.


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.

Document Status Superseded
Related Documents
GRPE-78-27 | UN R83: Proposal for amendments, including to document GRPE/2019/8