Final answer:
According to the state of Kansas laws, if you are 21, your BAC must be below 0.08% in order to drive.
Step-by-step explanation:
The state of Kansas has established a law regarding Blood Alcohol Concentration (BAC) levels for individuals who are 21 years old and above.
In order to drive legally in Kansas, your BAC must be below 0.08% by volume.
It is important to note that driving under the influence of alcohol can impair your skills and judgment, making it dangerous for yourself and others on the road. It is always best to avoid drinking and driving altogether.