| GTR No. 2 Motorcycle Emissions and Fuel Consumption | GTR 0002 | |
| UN R47 Moped Emissions | UN Regulation | UNR 0047 |
| GTR No. 18 Motorcycle On-Board Diagnostic Systems | GTR 0018 | |
| L-vehicle Propulsion-unit Performance Requirements | Regulatory Project | Motorcycle Propulsion Unit Performance |
| Durability of L-category Vehicle Pollution Control Devices | Regulatory Project | L-vehicle Pollution Control Durability |
| Measurement of Motorcycle Max Power | Regulatory Project | Motorcycle Max Power |