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Advanced Clean Fleets (ACF) Calculator | California Air Resources Board (CARB)

Download this compliance planning tool published by the California Air Resources Board (CARB) to help fleet owners project the number of zero-emission vehicles (ZEV) needed for their fleets to comply with the High-Priority Fleet Model Year Schedule and the ZEV Milestones Option for the Advanced Clean Fleets (ACF) regulation.

What is the ZEV milestones option?

Fleets that fall under the High Priority and Federal Fleets or the State and Local Government Fleets parts of ACF may choose to use the ZEV Milestones Option, shown in Table 1 below, to meet their ZEV targets.

Percentage of vehicles that must be zero-emission10%25%50%75%100%
Milestone Group 1: Box trucks, vans, buses with two axles, yard tractors, light-duty package delivery vehicles20252028203120332035 and beyond
Milestone Group 2: Work trucks, day cab tractors, buses with three axles20272030203320362039 and beyond
Milestone Group 3: Sleeper cab tractors and specialty vehicles20302033203620392042 and beyond

Table 1: ZEV fleet milestones by milestone group and year

Source: California Air Resources Board (CARB)

Per the CARB website, this tool is provided to assist regulated entities in complying with the Advanced Clean Fleets regulation. In the event any discrepancy exists between this document and the Advanced Clean Fleets regulation, the regulatory text of the Advanced Clean Fleets regulation applies.

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