California Air Resources Board

ISEF emissions reductions are not calculated separately from the Clean Truck and Bus (HVIP) project and are included in the Cumulative Outcomes for HVIP, which can be found on the HVIP Outcomes and Results page.

ISEF Cumulative Statistics Since Launch

The number of vouchers finalized, and the funding redeemed, increases as vouchers continue to be processed.​ Statistics are expected to be updated biannually.