12 June 2018 Heavy-duty vehicle fuel efficiency harmonization (OICA) GRPE-77-08	GRPE-77-08	2018-06-12
9 January 2019 Heavy-Duty Vehicle Fuel Efficiency workshop highlights (OICA) GRPE-78-15	GRPE-78-15	2019-01-09
21 May 2019 Workshop on heavy-duty vehicle fuel efficiency harmonization (OICA) GRPE-79-12	GRPE-79-12	2019-05-21
17 January 2020 GRPE priority emission items list GRPE-80-04/Rev.3	GRPE-80-04/Rev.3	2020-01-17
31 May 2022 Heavy-Duty Engine and Vehicle Standards: Control of Air Pollution from New Motor Vehicles (US EPA) GRPE-86-33	GRPE-86-33	2022-05-31
10 January 2024 HD Fuel Economy Harmonisation (OICA) GRPE-90-38	GRPE-90-38	2024-01-10
25 June 2024 Draft minutes of GRPE workshops on harmonization of heavy-duty vehicle fuel economy, energy consumption and range determination and on the future of power determination regulations WP.29-193-14	WP.29-193-14	2024-06-25
15 October 2024 IWG on Heavy Duty FE Harmonization: Terms of Reference (OICA) GRPE-91-35	GRPE-91-35	2024-10-15