As of November 19, 2025, heavy-duty CORE funding is closed and new voucher applications are no longer being accepted. Register to receive funding updates.

The California Air Resources Board (CARB), in partnership with CALSTART, launched the Clean Off-Road Equipment Voucher Incentive Project (CORE) to accelerate the purchase of zero-emission off-road equipment in California.

CORE, analogous to the Clean Truck and Bus Voucher Incentive Project (HVIP), is a project intended to promote the purchase of off-road freight and other heavy-duty off-road vehicles and equipment powered by zero-emission technology by offering vouchers to help offset the higher costs of such equipment. Because CORE is designed to support the expansion of zero-emission operations among California’s off-road fleets, it benefits Californians through reductions in air pollution and greenhouse gas emissions. Additionally, the program helps deploy and advance critical technologies necessary for California to meet its long-term air quality and climate goals.