What does a BAC of .08 refer to in terms of alcohol content?

A BAC (Blood Alcohol Concentration) of .08 refers to 0.08 grams of alcohol per 100 milliliters of blood. This measurement is used to determine a person's level of intoxication and is a standard benchmark in the United States for legal driving limits. When a person's BAC reaches .08, they are generally considered to be impaired and legally intoxicated, meaning their ability to operate a vehicle safely is compromised.

This measurement is critical because it provides a clear and quantifiable way to evaluate whether an individual is in a state that poses a risk to themselves and others when driving. The definition of BAC helps to support laws and regulations aimed at reducing alcohol-related accidents and ensuring road safety.