Is 10 BAC High? Understanding a 0.10 Blood Alcohol Level
                                
                                
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                                    4 min read                                
                            
                                In most U.S. states, the legal limit for driving is a 0.08% Blood Alcohol Concentration (BAC), meaning that a 10 BAC (or 0.10%) is unquestionably high and indicates a state of significant impairment and legal risk. This level severely impacts motor skills, judgment, and reaction time, making any activity requiring concentration, especially driving, profoundly dangerous.