129. The representative of the Netherlands, Co-Chair of the IWG on PTI, introduced WP.29-191-34 providing details related to the PTI test for checking particulate filters of diesel cars with a particle counter, reporting on the reasons and activities that led to the elaboration of ECE/TRANS/WP.29/2023/137 and introducing ECE/TRANS/WP.29/2023/138 containing a proposed amendment to the Consolidated Resolution R.E.6 introducing the specifications and test methods.

130. The Chair of GRPE showed his appreciation to assist the IWG on PTI to help improve UN Rule No. 1 and R.E.6, and reminded the key role GRs play in amending text annexed to any of the 3 agreements.

131. WP.29 adopted ECE/TRANS/WP.29/2023/138 and requested the secretariat to produce the final document and post it on the UNECE website.