Mileage tax idea would use GPS in cars to track drivers ' usage . Transportation Secretary LaHood calls it an idea `` we should look at '' but not necessarily implement. It added , `` Such programs may not be ripe for widespread implementation in the U.S. yet , but are maturing rapidly . '' Oregon carried out a pilot program and deemed it `` successful ''
Mileage tax idea would use GPS in cars to track drivers ' usage . Transportation Secretary LaHood calls it an idea `` we should look at '' but not necessarily implement. Oregon carried out a pilot program and deemed it `` successful ''