While most states have a presumptive BAC limit of .08, you can be arrested and convicted of DUI/DWI/DUII or driving while impaired regardless of your BAC level.
In general all that is required is that the officer believe that your driving is impaired.
0.08%
It's illegal to operate a vehicle if ones BAC is .08 or higher.
Any BAC over .000.
.025 BAC
In most countries, it is illegal to drive with a blood alcohol concentration (BAC) of 0.06 or higher. It is considered a level above the legal limit for safe driving. It is important to always abide by local laws and regulations regarding alcohol consumption and driving.
In Tennessee, if you are under the age of 21, it is illegal to drive with a blood alcohol concentration (BAC) of 0.02 or greater. This zero-tolerance policy is in place to discourage underage drinking and driving. Violating this law can result in serious penalties, including fines, license suspension, and mandatory alcohol education programs.
It's not illegal to have a certain level in your blood. It's illegal if you want to drive.
That depends on the person's BAC, which drops at the rate of about .015 of BAC per hour.
0.8% BAC, I think...
when their BAC is at or above .05%
It means that the blood alcohol level is 0.08%, or that the bloodstream is 8 parts alcohol out of 10000. This level is sufficient to cause impairment such that most states in the US set that as the point beyond which it is illegal to drive. Note that a BAC of 0.40 is generally fatal. Alcohol is a poison, after all.
when their BAC is at or above .05%