| 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 Environmental and Propulsion Performance Requirements | L-vehicle EPPR | |
| GTR No. 23 Durability of L-category Vehicle Pollution Control Devices | GTR 0023 | |
| Measurement of Motorcycle Max Power | Motorcycle Max Power |