| Passenger Car | Light-Duty Truck | Large Light-Duty Truck (6,000 - 8,500 GVW) | Work Truck (8,500 - 10,000 GVW) | |
| Minimum Fuel Economy for New Vehicle (EPA combined) | 22 MPG | 18 MPG | 15 MPG | Not applicable |
| To qualify for a $3,500 voucher | At least 4 MPG more than the trade-in vehicle | At least 2 MPG more than the trade-in vehicle | At least 1 MPG more than the trade-in vehicle or trade-in of a work truck | Trade-in must be 2001 model year or older work truck |
| To qualify for a $4,500 voucher | At least 10 MPG more than the trade-in vehicle | At least 5 MPG more than the trade-in vehicle | At least 2 MPG more than the trade-in vehicle | Not applicable |