Blood Alcohol Content

Student pointing at Jayhawk Buddy System Merchandise talking with a staff member behind the table

Blood alcohol content (BAC) is the concentration of alcohol in one's bloodstream, expressed as a percentage. BAC is used to determine whether a person is legally intoxicated, especially in operating or attempting to operate a motor vehicle.

In Kansas, it is illegal to operate or attempt to operate a motor vehicle while having a BAC of .08% or above. If you are under 21 years of age, the Zero Tolerance Law makes it illegal to operate or attempt to operate a motor vehicle with a BAC of .02 or above.

There are many factors that can affect a person's BAC, including but not limited to:

  • Age
  • Alcohol content of drinks consumed
  • Body weight/composition
  • Food consumption
  • Genetics
  • Rate of consumption

More Alcohol Facts