What is Michigan’s BAC Limit? Recently the Michigan Legislature acted to prevent state BAC limits from reverting back to .10, keeping the limit at .08. To allow otherwise would have rendered Michigan ineligible for significant federal highway funding which is tied to the lower BAC limit. The National Transportation Safety Board issues safety regulations, many of which have become law. Their victories include lowering the limit to .08 in the first place, and raising the drinking age from 18 to 21. They have decided to make their next fight lowering the BAC limit again, this time to .05. Citing Australia and Ireland who have lowered their rates to .05, the NTSB states that the US is practically alone in having such a high BAC limit. They allege that Australia saw 8%-18% reduction in drunken driving deaths. That seems like a fairly large margin of error.
For your reference here is a map of BAC limits around the world.
It seems if this were really such a problem, we would be hearing a lot of anecdotal evidence of people being pulled over, breathalyzed, and blowing between .05 and .08. In our experience, this is pretty rare. Most clients who have been arrested for Drinking and Driving offenses blow at least a .10, plausibly because until that point of inebriation driving impairment is not often visible.