What is the legal blood alcohol limit for driving in the US?

What is the legal blood alcohol limit for driving in the US?

Richard Saferstein (Former Chief Forensic Scientist) gives expert video advice on: What is forensic toxicology?; What is the legal blood alcohol limit for driving in the US?; How long is alcohol detectable in a person's body? and more...

In all states in the United States the legal limit is .08 percent. We call that the per se level. By per se, we mean that the level is the only thing that the state has to prove in terms of getting a conviction for drinking and driving. Just that level and no other, I think, is necessary for conviction in a drinking and driving case.