The deadline for the submission of official working documents is 9 March 2018. The session, including GRPE informal working group meetings, is scheduled to be held in Geneva, Palais des Nations, starting on Monday, 4 June 2018, from 9.30 a.m. until Friday, 8 June 2018, at 5.30 p.m. Interpretation services should be provided from 6 June (2.30 p.m.) to 8 June (12.30 p.m.) 2018.
7. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2018/13 clarifying the basis of the petrol tank capacity restriction for mono fuel gas vehicles. GRPE adopted the proposal.
8. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2018/14 and ECE/TRANS/WP.29/GRPE/2018/16 aimed at clarifying provisions on mode selection when measuring emissions from OVC-HEV and bi-fuel gas vehicles. The expert from the Netherlands proposed amendments (GRPE-77-02 and GRPE-77-03) to ECE/TRANS/WP.29/GRPE/2018/14 and ECE/TRANS/WP.29/GRPE/2018/16 respectively. The experts from France and Sweden supported the proposals from the expert from The Netherlands. GRPE adopted the proposals as reproduced in Annexes IV and V respectively.
9. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2018/15 and ECE/TRANS/WP.29/GRPE/2018/17 aimed at adapting the provisions in UN Regulation No. 83 and UN Regulation No. 101 to allow the usage of WLTP-based Ki and Deterioration Factor (DF) factors as well as On-Board Diagnostics (OBD) demos. The experts from EC and UK proposed minor corrections to ECE/TRANS/WP.29/GRPE/2018/15 that GRPE adopted as reproduced in Annex VI. GRPE also adopted ECE/TRANS/WP.29/GRPE/2018/17.
10. The expert from OICA introduced ECE/TRANS/WP.29/GRPE/2018/18 aimed at modifying the Constant Volume Sampling system temperature sensor time response requirement in UN Regulation No. 83. The Chair of GRPE requested clearer provisions to align with the work performed under the IWG on WLTP. The Expert from OICA presented informal document GRPE-77-31 amending ECE/TRANS/WP.29/GRPE/2018/18. GRPE adopted the proposal as reproduced in Annex VII.
11. The expert from EC presented informal document GRPE‑77‑11, superseding documents ECE/TRANS/WP.29/GRPE/76 (Annex IV), ECE/TRANS/WP.29/2018/48/Add.1 and ECE/TRANS/WP.29/2018/49/Add.1, aimed at clarifying Selective Catalytic Reduction (SCR) level warning provisions. GRPE adopted GRPE-77-11 as reproduced in Addendum 1 to the session report.
12. GRPE requested the secretariat to submit ECE/TRANS/WP.29/GRPE/2018/13, Annexes IV, VI and VII and Addendum 1 to the report to WP.29 and the Administrative Committee of the 1958 Agreement (AC.1) for consideration and vote at their November 2018 sessions as draft Supplements 2, 1, 12, 12 and 18 to the 03, the 04, the 05, the 06 and the 07 series of amendments to UN Regulation No. 83 respectively.
13. GRPE requested the secretariat to submit ECE/TRANS/WP.29/GRPE/2018/17 and Annex V to the report to WP.29 and AC.1 for consideration and vote at their November 2018 sessions as draft Supplements 10 and 8 to the 00 and the 01 series of amendments to UN Regulation No. 101 respectively.
14. The expert from OICA presented GRPE-77-05, proposing to provisions regarding reference fuels and Particulate Number (PN) levels in UN Regulation No. 83. The expert from France supported the intent of the document and would contact the expert from OICA if further explanations would be needed.