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Alcohol, Drugs, and Impaired Driving Flashcards

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

Read the first 6 Alcohol, Drugs, and Impaired Driving flashcards as text

  1. What is the legal blood alcohol concentration (BAC) limit for drivers 21 and older in Massachusetts?

    Answer: 0.08%

    Massachusetts sets the legal BAC limit at 0.08% for drivers age 21 and older — at or above this level you are considered legally impaired.

  2. What is the BAC limit for drivers under 21 in Massachusetts?

    Answer: 0.02%

    Massachusetts has a zero-tolerance policy for underage drivers with a BAC limit of 0.02%, effectively prohibiting any alcohol consumption before driving.

  3. What is the BAC limit for commercial vehicle drivers in Massachusetts?

    Answer: 0.04%

    Commercial driver license holders are held to a stricter 0.04% BAC limit in Massachusetts because of the increased responsibility and risk involved.

  4. Under Massachusetts' implied consent law, what happens if you refuse a breathalyzer test after arrest?

    Answer: Your license is automatically suspended for at least 6 months

    Refusing a breathalyzer in Massachusetts results in an automatic license suspension of at least 180 days under the implied consent law.

  5. Which of the following can impair driving ability as much as alcohol?

    Answer: Certain prescription and over-the-counter medications

    Many prescription and over-the-counter medications cause drowsiness, blurred vision, and slowed reaction time that can impair driving as seriously as alcohol.

  6. What does OUI stand for in Massachusetts driving law?

    Answer: Operating Under Influence

    OUI stands for Operating Under the Influence and is the Massachusetts term for what other states call DUI or DWI.

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Sources & references

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  1. mass.gov — Test delivery, eligibility, exam format, renewal, time limit, score validity, retake fee, retake policy, test dates, fees · verified Oct 2026