| GTR No. 2 WMTC | Motorcycle Emissions and Fuel Consumption | Global Technical Regulations | Measurement procedure for two-wheeled motorcycles equipped with a positive or compression ignition engine with regard to the emission of gaseous pollutants, CO2 emissions and fuel consumption WMTC Motorcycle Emissions and Fuel Consumption GTR No. 2 GTR No. 2 | GTR | 2 |
| GTR No. 17 Motorcycle Evaporative Emissions | Motorcycle crankcase and evaporative emissions | Global Technical Regulations | Measurement procedure for two- or three-wheeled light motor vehicle equipped with a combustion engine with regard to the crankcase and evaporative emissions. Motorcycle Evaporative Emissions Motorcycle crankcase and evaporative emissions GTR No. 17 GTR No. 17 | GTR | 17 |
| GTR No. 18 L-OBD | Motorcycle On-Board Diagnostic Systems | Global Technical Regulations | Project to establish a Global Technical Regulation and its homologous UN Regulation for motorcycle and moped on-board diagnostic systems. L-OBD Motorcycle On-Board Diagnostic Systems GTR No. 18 GTR No. 18 | GTR | 18 |
| GTR No. 23 L-vehicle Pollution Control Durability | Durability of L-category Vehicle Pollution Control Devices | Global Technical Regulations | Requirements for Two- and Three-wheeled Light Motor Vehicles with regard to the Durability of the Pollution Control Devices This proposed global technical regulation would supplement the three main environmental performance verification test types (i.e., I, II, and VII as envisioned for GTR No. 2 by the Informal Working Group on Environmental and Propulsion Performance Requirements of L-category vehicles (EPPR)) with procedures for verifying pollution device/system durability. This effort includes both the development of the GTR and its UN Regulation counterpart. For convenience, materials concerning both efforts are grouped here. L-vehicle Pollution Control Durability Durability of L-category Vehicle Pollution Control Devices GTR No. 23 GTR No. 23 | GTR | 23 |
| L-vehicle Environmental and Propulsion Performance Requirements | L-vehicle Environmental and Propulsion Performance Requirements | WP.29 Discussion Topics | Requirements for two- and three-wheeled light motor vehicles with regard to propulsion unit performance Originally proposed by the European Union, this program has evolved into several distinct efforts under the EPPR informal group to establish and/or amend global technical regulations regarding propulsion unit performance characteristics of two- and three-wheeled light vehicles. L-vehicle EPPR L-vehicle Environmental and Propulsion Performance Requirements WP.29 Discussion Topic L-vehicle EPPR | Topic | |
| Measurement of Motorcycle Max Power | Measurement of Motorcycle Max Power | WP.29 Discussion Topics | Discussion under the EPPR informal group for a global technical regulation to establish uniform procedures for the measurement of maximum engine power for motorcycles. Motorcycle Max Power Measurement of Motorcycle Max Power WP.29 Discussion Topic Motorcycle Max Power | Topic | |
| UN R40 Motorcycle Emissions | Emission of Gaseous Pollutants by Motorcycles | UN(ECE) Regulations | Uniform Provisions Concerning the Approval of Motor Cycles Equipped with a Positive-Ignition Engine with regard to the Emission of Gaseous Pollutants by the Engine Motorcycle Emissions Emission of Gaseous Pollutants by Motorcycles UN Regulation No. 40 UN R40 | UNR | 40 |
| UN R47 Moped Emissions | Moped Emissions | UN(ECE) Regulations | Uniform Provisions Concerning the Approval of Mopeds Equipped with a Positive-Ignition Engine with regard to the Emission of Gaseous Pollutants by the Engine Moped Emissions Moped Emissions UN Regulation No. 47 UN R47 | UNR | 47 |