83. The representative of China presented WP.29-172-21 to provide an overview on the development of the China Automotive Testing Cycle (CATC). She explained the need to replace the currently used New European Driving Cycle (NEDC) by a new cycle representing actual driving conditions in China. She mentioned the target to finalize the development of CATC in year 2018 and then to evaluate results and assess the comparison between CATC and WLTP. She clarified that data have not been available when WLTP started to be developed but now data collected by more than 40 cities were used to develop CATC.

84. The Chair of WP.29 pointed out that complications may arise in future if WLTP is not implemented by all Contracting Parties to the 1998 Agreement that notified UN GTR No. 15 and its amendments.