Texas Car / Permit practice question · Alcohol & Drugs

In Texas, an adult 21 or older is legally intoxicated to drive at a blood alcohol concentration (BAC) of:

Answer choices

• 0.02 or higher
• 0.04 or higher
• 0.05 or higher
• 0.08 or higher— Correct answer

Why this is the answer

Texas treats an adult 21 or older as legally intoxicated at a BAC of 0.08 or more. The legal limit can also be reached with any amount that causes loss of the normal use of your mental or physical faculties, so you can be charged below 0.08. The lower numbers in the other choices are not the adult threshold.

Source: Texas Driver Handbook — Alcohol and Driving

Content reviewed against official driver handbooks · August 12, 2026