| Particle Measurement Programme (PMP) Last session: March 2025 |
| Tyre Abrasion (TA) Last session: March 2025 |
| GRPE AV Regulation Screening (TF-AVRS) Next session: 4 Apr |
| Automotive Life Cycle Assessment (A-LCA) Last session: March 2025 |
| Vehicle Interior Air Quality (VIAQ) Last session: March 2025 |
| WLTP 04/05 Series Ad Hoc Group (WLTP-AH) Last session: March 2025 |
| L-Vehicle Environmental and Propulsion Performance Requirements (EPPR) Next session: 16 Apr |
| Electric Vehicles and the Environment (EVE) Next session: 14-15 Apr |
| Global Real Driving Emissions (RDE) Last session: January 2021 |
| WLTP Informal Group (WLTP) Last session: June 2020 |
| Gaseous Fueled Vehicles Informal Group (GFV) Last session: June 2016 |
| Heavy-Duty Hybrids Informal Group (HDH) Last session: March 2016 |
| Vehicle Propulsion System Definitions (VPSD) Last session: February 2015 |
| Retrofit Emission Control Devices Informal Group (REC) Last session: January 2014 |
| MACTP Informal Group (MACTP) Last session: June 2012 |
| Environmentally Friendly Vehicles Informal Group (EFV) Last session: June 2011 |
| HFCV-Environment Subgroup (H2SGE) Last session: June 2010 |
| Fuel Quality (FQ) Last session: June 2010 |
| AV Fitness (FIT) |