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Center Lane Only: What It Means & What To Do

Center Lane Only (R3-9a) - rectangle (vertical) white with black/red regulatory sign: The center lane is for left turns only
MUTCD CodeR3-9a
CategoryRegulatory Signs
ShapeRectangle (vertical)
ColorWhite with black/red

What Does the Center Lane Only Mean?

The center lane is for left turns only. Never use it to pass or to travel through traffic.

About This Sign

The center lane is only used for vehicles turning left, and should never be used for passing or moving through traffic. The only time a vehicle should enter the center lane is at a point where the vehicle will have time to slow down or stop to make a safe left turn.

Other Regulatory Signs

Stop Sign (R1-1) - octagon red with white regulatory sign: Come to a complete stop before the stop line or crosswalk

Stop Sign

R1-1

Yield Sign (R1-2) - triangle (inverted) red and white regulatory sign: Slow down and be prepared to stop

Yield Sign

R1-2

Stop for Pedestrians in Crosswalk (R1-5b) - rectangle (vertical) white with black/red regulatory sign: Stop for pedestrians within the crosswalk

Stop for Pedestrians in Crosswalk

R1-5b

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Center Lane Only - DMV Road Sign Meaning & Test Guide | DMV IQ