For passenger vehicles, the California Air Resources provides the DriveClean tool which you can use to identify state and local incentives that can lower the cost of your ZEV purchase.
If you are seeking incentives for medium-, heavy-duty and off-road ZEVs, we suggest using CALSTART’s Funding Finder, which sorts incentives by region.
In addition, the state maintains a comprehensive grants and financing opportunities tool called the California Grants Portal.