| UN R41 Motorcycle Noise | UN Regulation | UNR 0041 |
| UN R51 Vehicle Noise Emissions | UN Regulation | UNR 0051 |
| UN R117 Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance | UN Regulation | UNR 0117 |
| Non-Exhaust Particle Emissions | NEPE | |
| Vehicle Sound | Vehicle Sound |