| Worn Tyres informal group (WT) Last session: November 2024 |
| Tyre Abrasion (TA) Last session: November 2024 |
| Motorcycle RD-ASEP (RDASEPL) Next session: 12 Dec |
| RD-ASEP (RDASEP) Last session: October 2024 |
| Vehicle Sound (TFVS) Last session: October 2024 |
| GRBP Automated Vehicle Regulation Screening (GRBP-TFAVRS) Last session: November 2024 |
| RD-ASEP (M1/N1) (IG-ASEP) Last session: June 2024 |
| Studded Tyres Task Force (TFST) Last session: May 2022 |
| GRBP SIG on Regulation Screening for AV (SIG-AVRS) Last session: January 2024 |
| Task Force QRTV-UN R138.02 (TFQRTV) Last session: November 2023 |
| Noise Measurement Uncertainties (IWGMU) Last session: November 2023 |
| Vehicle/Tyre Noise Measurement Uncertainties (TFMU) Last session: June 2022 |
| Additional Sound Emissions Provisions Informal Group-II (ASEP II) Last session: February 2022 |
| Reverse Warning Task Force (TFRWS) Last session: October 2021 |
| TPMS and Tyre Installation (TPMSTI) Last session: July 2021 |
| Tyre GTR Informal Group (TYREGTR) Last session: September 2019 |
| Quiet Road Transport Vehicles GTR (GTRQRTV) Last session: May 2018 |
| AV Fitness (FIT) |