By SARA KHANMANDI, Associated Press The cost of driving schools for young drivers in the United States has fallen from $20 million to $10 million, according to a new report.

The study, released Thursday by the American Automobile Association, estimates that, at least, half of those schools could be eliminated, but the real cost could be even lower.

The analysis includes cost-plus grants for driver education, vehicle registration and licensing, vehicle inspection and maintenance and driver education and licensing costs, among other things.

A big factor in reducing costs is the elimination of a costly federal mandate for drivers’ licenses that the AP says is costing taxpayers more than $400 million a year.

The AP’s analysis estimates that there could be savings of $5 million to as much as $100 million annually if states adopted a similar approach to reducing costs.

The Associated Press contributed to this report.