What do the initials BAC stand for What does a BAC reading tell you?

BAC stands for Blood Alcohol Concentration. It is a measurement of the amount of alcohol present in a person's bloodstream, expressed as a percentage. A BAC reading indicates the level of intoxication, with higher percentages indicating greater impairment and increased risk of accidents or health issues. For example, a BAC of 0.08% is commonly considered the legal limit for driving in many jurisdictions.