4. Following a brief introduction from the GRPE Chair and the Technical Secretary of the WLTP informal working group, the draft manager of the WLTP UN GTR presented GRPE-67-07, outlining the development of ECE/TRANS/WP.29/GRPE/2013/13 and describing the amendments proposed in GRPE-67-04-Rev.1.

6. GRPE adopted ECE/TRANS/WP.29/GRPE/2013/13, as amended by GRPE-67-04- Rev.1, and requested the secretariat to submit the adopted proposal to WP.29 and AC.3 for consideration at their March 2014 session. GRPE also adopted GRPE-67-05-Rev.3, as reproduced in Annex II of the session report, including explicit references to GRPE-68-03 and GRPE-68-04 in paragraphs 51 and 73, respectively. The Chair of GRPE expressed his appreciation for the contribution of all experts that took part in the WLTP UN GTR development.

13. The secretary of the WLTP informal subgroup on the Development of the Harmonized driving Cycle (DHC) introduced GRPE-66-34, containing the report on the progress made since January 2013. Having stated that almost all open issues were successfully closed, he reported that DHC successfully developed the harmonized test cycles, including the downscale procedure (even if the downscale calculation formula requires finalization after correcting minor issues), the mode construction, and the gear shift prescription (notwithstanding continued work for its improvement). A draft final report on the development of the Worldwide harmonized Light vehicles Test Cycle (WLTC) is already available and will be included in the Technical Report.