No U-turn sign
A U-shaped arrow inside a red circle with a slash. U-turns are prohibited there.
How to read it
The red circle and slash mean the movement pictured inside is not allowed, as California's and Florida's handbooks describe it. The MUTCD places at least one sign where a No Left Turn sign would go. Where both left turns and U-turns are banned, a combined No U-Turn/No Left Turn sign (R3-18) can be used instead.
Rules vary by state and country. This explains the sign's standard meaning in the U.S. Manual on Uniform Traffic Control Devices; it isn't legal advice.
At roundabouts
The MUTCD does not allow No U-Turn signs on the approaches to a roundabout to prohibit turning left onto the circle.
Read next
- Next in Road signsNo turn on red signA regulatory sign reading NO TURN ON RED. At that intersection, turning while the signal is red is not allowed.
- The same shape in Recycling symbolsGreen DotA mark used on packaging in some European countries. It shows that the producer has paid towards collecting and recycling packaging, and does not necessarily mean the item itself can be recycled.
More road signs
The same shape elsewhere
Browse symbols drawn with arrows, circles or curves and waves.
Sources
- MUTCD 2009 Edition, Chapter 2B: Regulatory Signs, Barricades, and Gates, MUTCD 2009, Part 2, U.S. Federal Highway Administration, Section 2B.18
- Pennsylvania Driver's Manual, Chapter 2: Signals, Signs and Pavement Markings, Pennsylvania Department of Transportation, p. 11
- California Driver's Handbook, Section 7: Laws and Rules of the Road, California Department of Motor Vehicles, Signs
- Official Florida Driver License Handbook, rev. 08/2023, Florida Department of Highway Safety and Motor Vehicles, p. 49
Researched, edited and approved by Rory Hansen before publishing. Last reviewed September 25, 2026. How we research
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