Regulatory signMUTCD R3-9bRectangle · white
Center Lane Left Turn Only Sign
What it means
The center lane is shared by left-turning traffic from both directions.
What you should do
Use the center lane only to make a left turn, never to pass or to drive along.
Don't confuse it with
Double Arrow (W12-1)Traffic may pass on either side of an island or object ahead.
Check yourself · 3 questions
Question 1 of 3Regulatory
What does this sign mean?
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More regulatory signs
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No U-Turn
No Left Turn
Bike Lane
Wrong Way
Left Turn Yield on GreenSign image: public domain, via Wikimedia Commons. Sources