Key points
A single solid yellow line marks the center of a two-way road.
Source: Handbook p. 13
“A single solid yellow line marks the center of a road with two-way traffic.”
California Driver's Handbook, Handbook p. 13Do not pass over double solid yellow lines.
Source: Handbook p. 13
“Double Solid Yellow Lines Do not pass over double solid yellow lines.”
California Driver's Handbook, Handbook p. 13Two sets of double yellow lines 2 or more feet apart are a barrier. Do not drive over it or turn across it except at openings.
Source: Handbook p. 13
“Two sets of solid double yellow lines spaced two or more feet apart are considered a barrier. Do not drive on or over this barrier, make a left turn, or make a U-turn across it, except at designated openings.”
California Driver's Handbook, Handbook p. 13A broken yellow line next to your lane means you may pass when it is safe.
Source: Handbook p. 13
“A broken yellow line indicates you may pass if the broken line is next to your driving lane. Only pass when it is safe.”
California Driver's Handbook, Handbook p. 13Never change lanes over double solid white lines.
Source: Handbook p. 14
“Never change lanes over double solid white lines.”
California Driver's Handbook, Handbook p. 14You may drive only 200 feet in the center left turn lane.
Source: Handbook p. 16
“You may only drive for 200 feet in the center left turn lane.”
California Driver's Handbook, Handbook p. 16On a two-lane road where passing is unsafe, use a turnout if five or more vehicles are following you.
Source: Handbook p. 16
“You must use a turnout area or lane to let other vehicles pass when you are driving slowly on a two-lane road, where passing is unsafe, and there are five or more vehicles following you.”
California Driver's Handbook, Handbook p. 16You may drive in a bike lane only to park where permitted, to enter or leave the road, or to turn within 200 feet of an intersection.
Source: Handbook p. 17
“It is illegal to drive in a bicycle lane unless you are: • Parking (where permitted). • Entering or leaving the road. • Turning (within 200 feet of an intersection).”
California Driver's Handbook, Handbook p. 17The left, or fast, lane is called the Number 1 Lane.
Source: Handbook p. 15
“The left (or fast) lane is called the Number 1 Lane.”
California Driver's Handbook, Handbook p. 15
Numbers to know
| Number | What it means | Manual |
|---|---|---|
| 2 feet | spacing that makes two sets of double yellow lines a barrier | Handbook p. 13 |
| 200 feet | maximum distance in a center left turn lane | Handbook p. 16 |
| 5 vehicles | line of followers that requires you to use a turnout | Handbook p. 16 |
| 200 feet | you may enter a bike lane this close to your turn | Handbook p. 17 |
| Number 1 Lane | name for the far left lane | Handbook p. 15 |
3 questions from the California practice test
1. What are two sets of solid double yellow lines spaced two or more feet apart?
- A passing lane for faster traffic
- A barrier you must not drive over except at designated openings
- A center left turn lane for 200 feet
- A shoulder marking for disabled vehicles
Show answer
A barrier you must not drive over except at designated openings. Two sets of solid double yellow lines spaced at least two feet apart are treated as a barrier. They are not a center left turn lane, which has a broken inner line and a solid outer line on both sides. The cue is two separate double-yellow pairs with space between them. Do not drive on or across that area, and do not make a left turn or U-turn across it except at a marked opening.
2. Double solid white lines separate your lane from the carpool lane beside it. What do those lines tell you?
- You may cross whenever traffic in your lane slows down
- They are a barrier you may not cross to change lanes
- You may cross only during posted carpool hours
- They mark the edge of the roadway shoulder
Show answer
They are a barrier you may not cross to change lanes. Two solid white lines mark a barrier between a regular lane and a preferential lane, and drivers may not change lanes across them. Congestion in your own lane does not create an exception, and the posted hours govern who may occupy the carpool lane, not where you may enter it. These lines also appear near freeway on and off ramps for the same reason. Enter and leave a carpool lane only at the designated openings, where the solid lines give way to a dashed segment or a gap in the striping.
3. How is a California center left turn lane marked?
- By a single solid white line on each side
- By two painted lines on each side, the inner line broken and the outer line solid
- By a broken white line on each side
- By double solid yellow lines on each side
Show answer
By two painted lines on each side, the inner line broken and the outer line solid. A center left turn lane sits in the middle of a two-way street and is marked on both sides by two painted lines: the inner line is broken and the outer line is solid. The broken inner line lets vehicles from either direction enter to prepare for a left turn or U-turn, while the solid outer line separates it from the through lanes. Two sets of solid double yellow lines spaced two or more feet apart mean a barrier, not a turn lane.
Practice this topic
Lock it in with signals and markings questions from the free California practice test. Every answer comes with a plain English explanation.
Source: the California Driver's Handbook, Section 6: Navigating the Roads. This lesson is a plain English summary, not the law itself; where it differs, the manual and the statute govern. Last checked 2026-09-27.
