To ensure everyone pays their fair share: Considering the range of MPG of today’s vehicles on the road, the gas tax has become inequitable. For the same miles driven, drivers pay widely different amounts for their roadway use, depending on their vehicle’s MPG. This inequity is expected to grow each year as vehicle MPG continues to increase.
One way that drivers could ensure they are not charged for miles driven out of state was by selecting the GPS-enabled plug-in device or smartphone app options for reporting miles. These two options utilize GPS to ensure drivers are only charged for miles they drive in Washington. The State of Washington will not store or record specific location data, only the total number of miles driven in state.
Based on the limited scoping and nature of the pilot, drivers using the “low-tech” or “no-tech” options are not able to distinguish miles driven in or out of state. If a road usage charge system were adopted by the state, policy makers would need to determine how to account for out-of-state mileage.