One of the most serious offenses that a driver may be charged with is driving while impaired, DWI. All states have DWI laws in place to restrict driving a motor vehicle while impaired due to the use of drugs or alcohol. In North Carolina, the legal blood alcohol concentration (BAC) limit is 0.08%. The police may arrest a driver when their BAC is 0.08% or higher, or they are suspected of driving while impaired. Some people think there is a magic number of drinks they can consume before they reach impairment, but that is not true.
How the Body Utilizes Alcohol