Broken White Lane Line sign
Separates lanes going the same direction; changing lanes with care is permitted.
What to do
Signal, check mirrors and blind spot, then change lanes when safe.
Before crossing it, signal, check your mirrors and look over your shoulder for vehicles in your blind spot.
Where it's used
Section 3B.06 says lane lines between lanes going the same direction must be white, and where crossing with care is allowed the lane line is a normal-width broken white line. Lane lines are required on all freeways and Interstates and should be used wherever a road has two or more lanes in the same direction. Solid or double solid white lines replace it where lane changes are discouraged or prohibited.
Don't confuse it with
- Broken Yellow Center Line: A broken yellow line separates opposing traffic, while a broken white line separates lanes going your way.
- Solid White Lane Line: A solid white line discourages lane changes, while a broken one allows them with care.
- Type
- pavement-marking
- Shape
- Line marking
- Colors
- white
- MUTCD code
- MUTCD section
- 3B.06
On state permit tests
Our questions for 51 states ask about this sign, including Alabama, Alaska, Arizona, Arkansas and California.
Test yourself
What is the minimum driving age for an Alabama driver license (not a learner license)? (Alabama practice test)
- 15
- 16
- 17
- 18
Show answer
16. The minimum driving age in Alabama is 16, with a learner license available at 15.
A non-resident 16 or older with a valid out-of-state license must get an Alaska license by the end of how many days after entering the state? (Alaska practice test)
- 60 days
- 90 days
- One year
- 30 days
Show answer
90 days. Non-residents 16+ with a valid license may drive, but must obtain an Alaska license by the end of a 90-day period after entry.
More signs
From the Manual on Uniform Traffic Control Devices (MUTCD), 11th edition, section 3B.06. Sign image: public domain.