What does BAC stand for in the context of alcohol consumption?

In the context of alcohol consumption, BAC stands for Blood Alcohol Concentration. This term refers to the amount of alcohol present in a person's bloodstream, typically expressed as a percentage. For example, a BAC of 0.08% indicates that 0.08% of a person's blood weight is alcohol. This measurement is crucial as it helps determine the level of intoxication and the legal limits for operating a vehicle, helping to maintain public safety by assessing whether an individual is impaired due to alcohol consumption.

Understanding BAC is important for servers and bartenders as they are responsible for monitoring patrons' alcohol consumption and ensuring responsible service. A higher BAC can lead to increased impairment, and servers may need to refuse service based on a customer's level of intoxication.