Regulatory signs
No Left Turn sign
Left turns are not allowed here.
What it looks like
White square sign with a black left-turn arrow inside a red circle with a red slash.
- Type
- Regulatory
- Federal design code
- MUTCD R3-2
From real handbooks
How permit tests ask about it
15 of our verified questions in 15 states show this sign. A few of them, each from a different handbook where we can:
1.A sign shows a symbol with a red circle and a red slash over it. What does it mean?
- AThe action shown is prohibited
- BThe action shown is recommended
- CA service is nearby
- DA hazard is ahead
Show the answer
✓ A. The action shown is prohibited
Some regulatory signs have a red circle with a red slash over a symbol. This means the action shown is not allowed.
Source: Kentucky Driver Manual (Kentucky State Police) (none printed), page 46
2.What does this sign mean?
- AKeep to the left side
- BThe left lane ends ahead
- CLeft turns are not allowed
- DOnly left turns allowed
Show the answer
✓ C. Left turns are not allowed
Any turn shown inside a red circle with a slash is banned.
Source: Oregon Driver Manual 2026-2027 (Form 735-37) (2026 - 2027), page 15
3.What does this sign mean?
- ALeft turns only from this lane
- BA sharp left curve is ahead
- CLeft lane ends ahead
- DYou may not turn left here
Show the answer
✓ D. You may not turn left here
A no-turn sign points in the direction you are not allowed to turn.
Source: Wisconsin Motorists' Handbook (BDS126) (2026), page 28