Apr 28 - By Joan Lowy, Associated Press Writer
A House committee chairman said Tuesday that he wants Congress to enact a mileage-based tax on cars and trucks to pay for highway programs now rather than wait years to test the idea.

Jan 2 - By Ryan Kost, Associated Press Writer
Oregon is among a growing number of states exploring ways to tax drivers based on the number of miles they drive instead of how much gas they use, even going so far as to install GPS monitoring devices in 300 vehicles. The idea first emerged nearly 10 years ago as Oregon lawmakers worried that fuel-efficient cars such as gas-electric hybrids could pose a threat to road upkeep, which is paid for largely with gasoline taxes.