White Edge Line (right edge) sign
A solid white line marking the right-hand edge of the roadway.
What to do
Keep to the left of it; it helps you stay on the road at night and in bad weather.
At night or in fog, use the white edge line to keep your position, and look toward it instead of at oncoming headlights.
Where it's used
Section 3B.09 says right edge lines, if used, must be normal-width solid white lines marking the right edge of the roadway; they help guide drivers in bad weather and poor visibility, and widths of 6 inches or more can improve safety. Section 3B.10 requires them on freeways, expressways and busier rural arterials, and they are generally not carried through intersections except as dotted extensions.
Don't confuse it with
- Yellow Left Edge Line: A yellow edge line marks the left edge of a one-way roadway, while the white edge line marks the right edge.
- Solid White Lane Line: A solid white lane line separates two lanes, while an edge line marks the edge of the travel lanes.
- Type
- pavement-marking
- Shape
- Line marking
- Colors
- white
- MUTCD code
- MUTCD section
- 3B.09
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.09. Sign image: public domain.