What is the legal blood alcohol concentration (BAC) limit for drivers aged 21 and over in Texas?

Answer: B — 0.08%

In Texas, the legal blood alcohol concentration (BAC) limit for drivers aged 21 and over is set at 0.08%. This limit is based on research showing that at or above this level, a person's ability to operate a vehicle safely is significantly impaired. Driving with a BAC of 0.08% or higher can result in serious legal penalties, including fines, license suspension, and possible jail time. The standard was established to promote safe driving and reduce the number of alcohol-related accidents on the roads. This legal threshold aligns with guidelines that have been adopted in many other states across the United States, reinforcing the importance of a consistent approach to preventing impaired driving.