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

The legal blood alcohol concentration (BAC) limit for drivers aged 21 and older in Texas is 0.08%. This standard is established to promote road safety and reduce the risk of accidents caused by impaired driving. When a driver's BAC reaches 0.08%, it is considered that their ability to operate a vehicle safely is significantly impaired, affecting judgment, coordination, and reaction times.

Setting the limit at 0.08% reflects a consensus in many states that this level creates an increased risk for drivers, passengers, and other road users. Driving with a BAC at or above this threshold can lead to serious legal consequences, including fines, license suspension, and potential jail time, as it is classified as driving while intoxicated (DWI).

The other options represent BAC levels that are below or above the legal limit. A BAC of 0.05% may still indicate some level of impairment, while limits above 0.08% are clearly beyond the legal threshold for driving. Understanding this limit is crucial for safe driving and compliance with Texas laws.