NTSB Wants DUI Limit Lowered To .05

The National Transportation Safety Board voted Tuesday to recommend that all 50 states lower the blood-alcohol threshold for drivers from 0.08 to 0.05.

Drunken driving claims the lives of more than a third of the people killed each year on U.S. highways, according to the NTSB.

The NTSB's report, "Reaching Zero: Actions to Eliminate Alcohol-Impaired Driving" describes the scope of the problem and includes safety recommendations to address impaired driving.

Currently, the legal limit for drunk driving is a blood alcohol content of .08.

The report says the decrease could save 500 to 800 lives a year. The death rate has remained consistent for the past decade and a half.

Canada and most European countries' limits are already at .05 or lower.

The Associated Press contributed this report.