No Left Turn Sign
Left turns are prohibited at this location
What to do
Do not turn left. Continue straight or turn right.
Tips
Common at busy intersections where left turns would block traffic.
Test yourself
You see this sign while driving. What do you have to do?
Show the answer
Do not turn left. Continue straight or turn right.
Common mistake
Making prohibited left turn
About regulatory signs
Regulatory signs are usually white rectangles with black or red markings, and they carry the force of law — speed limits, turn restrictions, right-of-way. Ignoring one is a traffic violation. The written test regularly checks whether you know exactly what a regulatory sign requires you to do.
Practice questions about this sign
This sign means:
- A. Left lane closed ahead
- B. Sharp left turn ahead
- C. Yield before turning left
- D. No left turn permitted at this intersection
Show answer
D. No left turn permitted at this intersection — The No Left Turn sign prohibits making a left turn at the intersection where it is posted. Violating this sign is a traffic infraction.
Universal rule · checked against MUTCD 11th Edition, Part 2 — Signs (General) — Traffic Signs — General · verified 2026-08-01
Frequently asked questions
What does the No Left Turn Sign mean?
Left turns are prohibited at this location
What should you do at a No Left Turn Sign?
Do not turn left. Continue straight or turn right.
Reference standard: Federal Highway Administration Manual on Uniform Traffic Control Devices ↗. State and local agencies may add rules or operating times, so follow the complete posted sign where you drive. How DMV Prep sources content.
More regulatory signs
