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Iowa Class C Knowledge Test Practice
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Passing target: 20/25 correct (TLA practice target)
Regulatory, Lane & Parking SignsStandalone practice
A red sign face shows a horizontal white bar and the words DO NOT ENTER. What does it mean?

Correct answer: Do not enter from the side facing the sign.
Why
DO NOT ENTER identifies an approach that traffic may not lawfully use from the facing direction.
Verified against Iowa Driver's License Manual · Regulatory Signs · p. 8
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