The federal government is crediting seat belt use and campaigns to combat drunken driving for far fewer U.S. traffic deaths, Bloomberg reports.
The number of people killed on U.S. highways fell last year to the lowest level since 1950.
Fatalities in motor vehicle crashes fell to 33,808 in 2009, a 10 percent decline from 2008, the National Highway Traffic Safety Administration said last week. The decrease came even though Americans drove 0.2 percent more miles than the year before.
But in a statement, NHTSA Administrator David Strickland said, "We are still losing more than 30,000 lives a year on our highways, and about a third of these involve drunk driving."