4 Nov 2020 GTR 4: Proposal for an amendment (Japan) GRPE/2021/7 2020-11-04
10 Jun 2020 Proposal to amend the PMP informal group terms of reference GRPE-81-13 2020-06-10
20 Jan 2020 Work by GRPE – Priorities and recurrent items GRPE-80-05/Rev.1 2020-01-20
20 Jan 2020 EPA Update on the Cleaner Trucks Initiative (US EPA) GRPE-80-33 2020-01-20
17 Jan 2020 GRPE priority emission items list GRPE-80-04/Rev.3 2020-01-17
15 Jan 2020 Discrepancies between GTR 4 and UN R49 (OICA) GRPE-80-17 2020-01-15
15 Jan 2020 UN GTR 4 Proposal for corrigendum (OICA) GRPE-80-25 2020-01-15