30 May 2023	PMP informal group: Proposal to revise the terms of reference	GRPE-89-27	2023-05-30
26 Jun 2023	Agenda for the 29 June 2023 PMP informal group session	PMP-53.3-01	2023-06-26
26 Jun 2023	Brake emissions: Proposal for Annex C text	PMP-53.3-02	2023-06-26
29 Jun 2023	PMP informal group: Updated terms of reference (final version)	PMP-53.3-03	2023-06-29
30 Jun 2023	Overview slides for the PMP informal group session on 29 June 2023	PMP-53.3-04	2023-06-30
30 Jun 2023	Brake Emissions: Replacement Brake Parts (JRC)	PMP-53.3-05	2023-06-30
30 Jun 2023	OICA Working-Group on Ducting & Enclosure for brake emission testing (OICA)	PMP-53.3-06	2023-06-30
5 Jul 2023	Filter Systems for Brake Emission Reduction (Mann+Hummel)	PMP-53.3-07	2023-07-05
5 Jul 2023	New Research on Brake Wear Particulate Matter Emissions from Several Heavy Truck Vocations in California (ERG, LINK, and Caltrans)	PMP-53.3-08	2023-07-05
7 Jul 2023	Minutes of the 29 June 2023 PMP informal group session	PMP-53.3-09	2023-07-07