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South Dakota Operator License Knowledge Practice Test
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Safe & Responsible DrivingStandalone practice
A 30-year-old driver takes a breath test after a traffic stop. What is the lowest alcohol concentration at which South Dakota law makes it illegal for this driver to drive, even if the driving seems normal?
Correct answer: 0.08 percent
Why
You can be arrested at this level even when you are not moving, if you are in physical control of the vehicle. A lower level does not make driving safe: a driver under 0.08 percent can still be convicted if alcohol affects the driving. The only safe choice is not to drive after drinking.
Verified against South Dakota Driver License Manual · Alcohol and the law · p. 20
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