| UN R40 Motorcycle Emissions | Emission of Gaseous Pollutants by Motorcycles | 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 | 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 |