Funding Resources

Clean Cities’ Alternative Fuels Data Center maintains a comprehensive database of Federal and State laws and incentives related to alternative fuels and vehicles, air quality, fuel efficiency, and other transportation—related topics.

Securing funding is critical to the success of efforts to cut petroleum use in transportation. Funding opportunities for Clean Cities projects are available from many sources inside and outside the U.S. Department of Energy (DOE).

Clean Cities has awarded more than $300 million to fund hundreds of projects across the country that cut petroleum use in transportation. Visit the Clean Cities projects page to learn more.

When applying for funding, contact your Clean Cities coordinator for help navigating the process successfully.


Current Funding Opportunities

Find current transportation-related funding opportunities, including Clean Cities Funding Opportunity Announcements issued by DOE, when available.

Related Funding Opportunities

Learn about related funding opportunities to pursue through organizations and federal agencies outside Clean Cities

HVIP Funding is Still Available

California’s Hybrid and Zero-Emission Truck and Bus Voucher Incentive Project (HVIP) is still open. The program opened in March 2022 with $196.6 million available for standard HVIP voucher requests, in addition to the following set-aside funds:

·$65.6 million for public transit buses

·$122 million for the Public School Bus Set-Aside for Small and Medium Air Districts

·Approximately $46 million for class 8 tractors performing drayage operations

Funding Availability

Unlike prior years, funding will not be allocated in waves. All funding is available until the funds are depleted.

Implementation Manual

The FY21-22 Implementation Manual is available at Dealers and other participants should familiarize themselves with the new Implementation Manual. FAQs to help guide you through the policy changes are at

While funds specifically set aside for drayage trucks, school buses, and ISEF have been fully subscribed, requests for these vehicles continue to be accepted and funded out of standard HVIP funds, first-come, first served.

Funding Updates

Click here to view the currently available funds. The data is updated daily during business hours. Dealers will also be advised of funding status via the online Voucher Processing Center Portal.

VW Mitigation Trust

The Volkswagen (VW) Environmental Mitigation Trust provides about $423 million for California to mitigate the excess nitrogen oxide (NOx) emissions caused by VW’s use of illegal emissions testing defeat devices in certain VW diesel vehicles.

The trust provides funding for zero-emission transit, school and shuttle buses, zero-emission trucks and combustion freight and marine, and zero-emission freight and marine and infrastructure.

Blog at