The BAC level is garbage. At least around here you can get something similar for any level of alcohol in your system, but they talk about that much. Honestly, if you're going to make the BAC so low that 2 drinks can get you, just go zero tolerance. Ohh but wait, then people might not drink and drive... It's really silly to think that someone is going to make increasingly responsible decisions on a drug that makes it harder to make good decisions. It's a whole lot easier to say, "I can't drink, I'm driving." than, "This is my last one." after a couple.