1% of your bloodstream is composed of alcohol. It is federal law that a person 21 years or older with a . 08 BAC or more is considered impaired and it is illegal for them to drive a vehicle. However, even if your BAC is under 0.08 and you drive, you are still subject to criminal citation if found to be impaired.

Is 0.15 alcohol level high?

0.10 – 0.12% – Obvious physical impairment and loss of judgment. Speech may be slurred. 0.13 – 0.15% – At this point, your blood alcohol level is quite high. You'll be affected by blurred vision, loss of coordination and balance, and potentially dysphoria (anxiety or restlessness).

How bad is a 0.20 BAC?

0.20 BAC: Felling dazed, confused or otherwise disoriented. May need help to stand or walk. If you injure yourself you may not feel the pain. Some people experience nausea and vomiting at this level.