What is the legal blood alcohol content (BAC) that defines being legally drunk in Washington State?

Answer: B — At or above .08 percent

In Washington State, the legal blood alcohol content (BAC) limit that defines being legally drunk for drivers aged 21 and older is .08 percent. This threshold is established to ensure that drivers maintain a level of cognitive and motor function necessary for safe driving. A BAC of .08 means that 0.08% of the person's blood volume is alcohol, which is enough to impair driving abilities significantly. Drivers must be aware that exceeding this legal limit can lead to severe penalties, including fines, license suspension, and potential jail time, as it indicates a level of intoxication that compromises safety on the road. It is also important to note that there are stricter limits for underage drivers and commercial drivers, reflecting the varying degrees of responsibility associated with driving under these different categories.