Double solid white lines
A free practice question for the California permit test, with the answer explained.
Independent practice site. We're not the DMV and aren't connected to any government agency.
What do double solid white lines between two lanes mean?
The rule
Double solid white lines are a barrier between a regular lane and a special lane such as a carpool lane, and also appear near freeway ramps. Never change lanes across them; wait for a broken white line.
Double solid white lines are a barrier. Never cross them to change lanes; wait until you reach a single broken white line.
From the California Driver Handbook, section 6, page 14. This question is our own wording of that rule. The handbook and the DMV have the final word.
Often mixed up with
People confuse these rules with this one. Each has its own practice question.
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