No Left Turn Sign — Meaning

By DMV Master Editorial Team Updated April 28, 2026 Also: NO LEFT TURN

Category: Regulatory
Shape: Vertical Rectangle
Colors: Black, Red, White
Text: (symbol)
MUTCD Code: R3-2

What does the No Left Turn Sign mean?

The No Left Turn sign shows a black left-turn arrow inside a red circle with a red diagonal slash. It prohibits left turns at the marked intersection. Often used to keep traffic flowing through busy intersections or to prevent dangerous left-turn movements.

What to do when you see this sign

1
Do not turn left at the marked intersection
2
Continue straight and turn at the next allowed intersection
3
If you need to reach a destination on the left, plan a different route (right turns + circle around)
4
Watch for time-of-day restrictions that limit when the prohibition is active

Where you'll see it

At busy commuter intersections during rush hour
On divided highways with restricted left turns
Near schools and emergency exits
At intersections without left-turn signal phases

Test trap: don't get caught by this

A No Left Turn sign with a time plate (e.g., "7 AM – 9 AM, MON–FRI") only applies during those hours. Outside those hours, left turns are permitted. Always check for time plates.

Practice questions about the No Left Turn Sign

Test your knowledge with real DMV-style questions, each with the correct answer and explanation.

What does this sign mean?

View answer & explanation

States that test this sign

The No Left Turn Sign appears in DMV practice tests for 50 states. Click any state to see its full DMV practice page.

Frequently asked questions

Is the No Left Turn sign always in effect?

Not always — many are restricted to certain times of day, shown on a plaque below the sign. Outside the posted hours, left turns are usually allowed.

Can I make a U-turn if Left Turn is prohibited?

Not necessarily. A No Left Turn sign does not by itself ban U-turns, but a U-turn typically requires the same path through the intersection. Look for a separate No U-Turn sign to be sure.

What should I do if I missed my left turn because of the sign?

Continue straight to the next intersection and either turn there or use side streets to circle back. Do not back up or perform an illegal turn.