A study published in January, 2018, established that lowering the blood alcohol concentration (BAC) limit from 0.08 to 0.05 across all states would save lives. Another study released back in 2013 by the National Transportation Safety Board (NTSB) pointed out many of the same issues and reasons for change.
As a nation, we have made a lot of progress in reducing drunk driving, especially during the twenty years that started in the early 1980s. This includes limiting the legal BAC to 0.08 percent and increasing the drinking age to 21. But following the early 2000s, progress ground to a halt, and DUI numbers have started to rise again.
Statistical averages indicate that one-third of all traffic deaths are due to at least one of the drivers in the crash operating under the influence of alcohol. Forty percent of the persons who die in collisions are not drunk drivers—they are victims. The deaths that result from alcohol-impaired driving have added up recently to more than 10,000 each year; we would all like to see this number drop to zero.