What does the acronym BAC refer to?

The acronym BAC stands for Blood Alcohol Concentration, which is a measure used to determine the amount of alcohol present in an individual's bloodstream. It is typically expressed as a percentage. For example, a BAC of 0.08% indicates that there are 0.08 grams of alcohol for every 100 milliliters of blood. This measurement is critical in various contexts, especially in assessing whether an individual is legally impaired for activities such as driving. Understanding BAC is essential for anyone involved in transportation, as it directly relates to safety regulations and legal limits regarding alcohol consumption and operating a vehicle.