40. GRPE acknowledged the progress made by the group and agreed to appoint Giorgio Martini (EC) as Chair of the PMP group, while secretariat services will be assured by Caroline Hosier (OICA). The PMP Chair reported on the progress of the informal group on the PMP (GRPE-65-16-Rev.1). He explained that the Joint Research Centre of the EC has finalized, in 2012, the PMP Heavy Duty Round Robin and the PMP volatile Particle Removal (VPR) Round Robin. The preliminary results were presented to the PMP informal group in July 2012 during an audio conference. Following an observation by the expert from OICA on the activity concerning submicron 23 nm particles, he agreed on the need to revise the PMP terms of reference and mandate, taking into account the most recent developments of the PMP group activities.

41. Given the limited room availability at the Palais des Nations, the group will meet before the next GRPE session at the EC Joint Research Centre facilities. GRPE requested the PMP group to elaborate a revision and an update of its terms of reference, also indicating the date of the end (or renewal) of the mandate, aiming to consider it at its next session.