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Alcohol and Drug Impairment Laws Flashcards

7 cards from real TX DMV practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Alcohol and Drug Impairment Laws flashcards as text

  1. In Texas, what is the legal blood alcohol concentration (BAC) limit for commercial vehicle drivers?

    Answer: 0.04%

    Commercial drivers in Texas are held to a stricter BAC limit of 0.04%, half the standard limit.

  2. Under Texas law, what penalty applies for a first DWI offense if your BAC was 0.15% or higher?

    Answer: Class A misdemeanor

    A first DWI with BAC of 0.15% or higher is elevated to a Class A misdemeanor in Texas.

  3. How long can a Texas judge order an ignition interlock device (IID) for a first DWI conviction?

    Answer: Up to 1 year

    For a first DWI conviction, Texas law allows a judge to require an IID for up to one year.

  4. In Texas, a person is considered legally intoxicated when their BAC reaches:

    Answer: 0.08%

    Texas law defines legal intoxication as having a BAC of 0.08% or higher.

  5. Which Texas law makes it illegal to drive while impaired by any substance — not just alcohol?

    Answer: Driving While Intoxicated (DWI) statute

    Texas's DWI statute covers impairment by alcohol, controlled substances, or any other substance.

  6. A Texas driver with a valid prescription for a controlled substance is still subject to a DWI charge if:

    Answer: The drug impairs their driving

    Having a valid prescription is not a defense if the medication causes driving impairment.

  7. What is the minimum jail time for a second DWI conviction in Texas?

    Answer: 30 days

    A second DWI conviction in Texas carries a mandatory minimum of 30 days in jail.