MUTCD R3-19 · Regulatory signs
This median lane is for left turns only
What it means
This median lane is for left turns only
What to do about it
LANE FOR LEFT TURN ONLY marks a mandatory left-turn lane added at a median. Where U-turns are also allowed the R3-19b sign is used instead. (MUTCD R3-19, Section 2B.28.)
Practice this on the real test format
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Get the appSign designations follow the MUTCD and the California MUTCD published by Caltrans; meanings are checked against the California Driver's Handbook (DL 600, rev. 6/2025). Edited by Fernando Aguilera. Aprobify is not affiliated with the California DMV.
Signs in the same family
These sit next to it in the regulatory signs series — the ones most easily mixed up with it.
- R3-9f Post-mounted version of the reversible lane control sign
- R3-9g The point ahead where a reversible lane changes direction
- R3-9i End of the reversible lane section
- R3-18 No U-turn and no left turn
- R3-19a Start of a median lane reserved for U-turns
- R3-19b Median lane where both U-turns and left turns are allowed
