Final answer:
The legal limit of blood alcohol content for a driver above 21 years of age is 0.08% .
Step-by-step explanation:
The legal BAC limit for drivers over 21 is 0.08% . This means that if a driver's blood alcohol concentration (BAC) is equal to or exceeds 0.08%, they are considered legally intoxicated and should not be operating a vehicle.
This standard was set by the National Minimum Drinking Age Act of 1984. Factors such as metabolism rate and individual characteristics can affect intoxication levels.
The legal limit of blood alcohol content (BAC) for a driver above 21 years of age is 0.08%. This limit was established as a national standard through the National Minimum Drinking Age Act of 1984.
In terms of metabolism, alcohol is broken down in the human body at a rate of about 15 mg/dL per hour, meaning that it can take at least five hours for a legally intoxicated person to reach sobriety.
It's also important to note that the immediate effects of alcohol can vary based on an individual's age, sex, health condition, and the amount of alcohol consumed.