When I was a kid in Florida, it was either 1.5 or 1.3. In the late 1900's, It was dropped to 1.0. Then the liberal do-gooders tackled "drunk driving" and we are trying to lower the limit even further. It's a crock in my opinion (and I don't even drink).
Dear god! I hope you meant 0.15, 0.13, and 0.1, unless people with alcohol poisoning were allowed to drive