| Passenger Car | Trucks and SUVs | |
| Minimum Fuel Economy for New Vehicle | 22 mpg (EPA combined) | 18 mpg (EPA combined) |
| $3500 Voucher | Mileage improvement of at least 4 mpg | Mileage improvement of at least 2 mpg |
| $4500 Voucher | Mileage improvement of at least 10 mpg | Mileage improvement of at least 5 mpg |