The Advanced Clean Fleets (ACF) Regulation is the latest development in CARB’s decades‑long history of setting increasingly stringent emission standards for mobile sources that are needed to protect the public health and welfare of Californians. The ACF Regulation requires fleets that are well suited for electrification to reduce emissions through requirements to both phase-in the use of Zero-Emission Vehicles (ZEVs) for targeted fleets and requirements that manufacturers only manufacture...
