40. The Chair of the IWG on PMP presented a status report (GRPE-71-23) on the activities of the group. He explained the ongoing work on non-exhaust particle emissions as a result of brake wear and the interaction between tyre and road. He informed GRPE that the IWG would submit, once the study would be concluded, a final report on the main findings and conclusions to be used as basis for discussion at GRPE. He also reported on the ongoing considerations of the group on the measurement of Particle Number (PN) during the regeneration and the measurement of exhaust particle emissions with a size below twenty-three nanometre.

41. GRPE acknowledged the progress made by the group and noted the request for a meeting room for half a day during the GRPE week in January 2016.