California Air Resources Board

On-Road Motorcycles (ONMC) include two- and three-wheeled motor vehicles which are intended for use on public roads. The California Air Resources Board (CARB) administers a program to reduce the air quality impact from this vehicle category. Reducing ONMC emissions is part of CARB’s broader Mobile Source Strategy, and Zero-Emission Motorcycles (ZEMs) will play an important role by providing consumers a clean alternative to traditional internal combustion engines.
More about this program