The legal limit under Connecticut DUI law is .08 BAC (blood alcohol content). Connecticut laws establish that to Operate While Under the Influence (OWI) with a BAC of .08 or higher is “per se” against the law. Simply driving while your blood has over .08% alcohol is illegal. The state doesn't need to prove that you were impaired or driving unsafely. The number is sufficient to find you guilty of a DUI charge. See my DUI laws & penalties page for more info.