Texas Defensive Driving Written Practice Test 2025 - Free Defensive Driving Practice Questions and Study Guide

The legal blood alcohol concentration (BAC) limit for drivers over 21 in Texas is set at 0.08%. This means that a driver is considered legally intoxicated and may face penalties, including fines, license suspension, or even jail time, if their BAC exceeds this limit. The establishment of this standard plays a critical role in promoting road safety by discouraging individuals from driving under the influence of alcohol.

The BAC limit of 0.08% is widely recognized across many states in the U.S. as a threshold that balances personal freedom with public safety. It reflects a body of research that suggests impairment begins at lower levels; however, the 0.08% mark serves as a clear legal boundary.

A lower limit, such as 0.05% or 0.02%, does exist for certain organizations, like commercial drivers or for those under the legal drinking age, recognizing that these groups may face stricter regulations due to their vulnerability and the nature of their driving responsibilities. The limit of 0.10% is outdated for most drivers over 21, as it exceeds the established threshold for intoxication in Texas and can lead to increased risks on the road. Understanding this limit helps to foster responsible drinking habits and increase safety