The board hosted a forum earlier this year on the problem of drivers impaired by alcohol and drugs. Alcohol-impaired crashes overall accounted for nearly 31 percent motor vehicle fatalities 2010.

News Family of teen killed by drunken driver urges ignition locks Published: Jun. 12, 2008, 7:25 p.m. By The Associated Press ...

The board's study analyzed data from 1,566 crashes from 2004 to 2009, as well as nine wrong-way collisions NTSB directly investigated. In 59 percent of the accidents, wrong-way drivers had blood ...