Regulatory signMUTCD R4-1Rectangle · white
Do Not Pass Sign
What it means
Passing other vehicles is not allowed from here on.
What you should do
Stay in your lane until a Pass With Care sign or the end of the zone.
Don't confuse it with
Pass With Care (R4-2)The no-passing zone has ended; you may pass when it is safe.
Check yourself · 3 questions
Question 1 of 3Regulatory
What does this sign mean?
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No Right TurnSign image: public domain, via Wikimedia Commons. Sources