North Carolina is considering taxing drivers for how far they drive.

The proposed "road-use tax" would at first be simple, with the state checking your odometer annually and taxing you based on how many miles you've driven. 

But transportation experts say new GPS technology could allow the state to charge people different rates based on when and where they drive.

Talk of a Vehicle Miles Traveled tax has long been discussed as a necessity, especially since cars are becoming more efficient, leading to a drop in gas tax revenue.

The 21st Century Transportation Committee suggested that motorists pay a quarter-cent for each mile they drive, with the first 2,000 miles free. A motorist who drives 12,000 miles a year would pay $25, possibly when their car is inspected. (Char-O)