North Dakota Class D Knowledge Practice Test
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At 10 a.m., fog settles over a rural highway. You can see another vehicle clearly only about 800 feet ahead. What does North Dakota law require for your lights?
At 10 a.m., car A travels on a rural two-way highway in fog. The roadway fades ahead and vehicle B is partly obscured; the card states that vehicles are clearly visible only to about 800 feet.
Correct answer: Turn on your headlights, since vehicles are not clearly visible at 1,000 feet.
Why
Headlights help you see, and they also help other drivers see you. North Dakota requires headlights between sunset and sunrise, and also whenever rain, snow, sleet, hail, smoke, or fog keeps a person or vehicle from being clearly seen 1,000 feet ahead. In fog, also slow down so that you can stop within the distance that you can see.
Verified against 2025-2027 Class D Noncommercial Driver License Manual · Night driving · p. 28
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