Just out of curiosity... What's the alcohol limit in the US?
I'd guess it's as much as you can consume and still maintain consciousness
Joking aside, I assume you mean legal limit for DUI (driving under the influence). Generally speaking it's 0.08% BAC, although it's up to each state to set both the limit and penalties. Here in California, for drivers under 21, the limit is 0.01%.
A recent news article in the local paper: http://www.mercurynews.com/crime-courts/ci_20884491/
Previous account of the accident and conviction: http://www.bicyclelaw.com/news/n.cfm/ju ... n-accident
69 year old driver seriously injures a bicyclist during a hit-and-run back in 2009. At the time he was on probation for a DUI conviction. He asked his mechanic to fix his car by ordering a replacement mirror from outside the area. Mechanic then reports to police his suspicions after hearing news reports on the injured cyclist. February of this year he is convicted of felony hit-and-run causing serious and permanent injury. Then just this past week, right before being sentenced, he's stopped for erratic driving in the same area as the accident 3 years ago. He admits drinking a couple of beers and his BAC is 0.039, not enough to meet the legal limit so he's released. Judge sentences him to 3 years in state prison and revokes his driving privileges for the rest of his life.