| Pollution and Energy (GRPE) Next session: 14-17 Oct (Subgroup meeting 14-15 Apr) |
| Noise (GRB) Last session: January 2019 |
| Lighting and Light-signalling (GRE) Next session: 22-25 Apr (Subgroup meeting 8 Apr) |
| Brakes and Running Gear (GRRF) Last session: February 2018 |
| General Safety (GRSG) Next session: 7-11 Apr (Subgroup meeting 1 Apr) |
| Passive Safety (GRSP) Next session: 5-9 May (Subgroup meeting 1-3 Apr) |
| Automated/Connected Vehicles (GRVA) Next session: 2-6 Jun (Subgroup meeting 4 Apr) |
| Working Party on Noise & Tyres (GRBP) Next session: 3-5 Sep (Subgroup meeting 8 Apr) |