Practice question

In Missouri, it is illegal for an adult driver to operate a motor vehicle with a minimum blood alcohol concentration (BAC) of:

  1. 0.08 percent.
  2. 0.05 percent.
  3. 0.02 percent.
  4. 0.008 percent.

Answer: A — 0.08 percent.

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Practice more: 2026 Missouri Permit Test 20 →