Washington State Department of Licensing Knowledge Test

What does a solid yellow line on your side of the street indicate?

1. You can pass if it is safe

2. No passing allowed

3. It is a bike lane

4. Passing is only allowed at intersections

The correct answer is: No passing allowed

A solid yellow line on your side of the street indicates that no passing is allowed. This marking serves as a warning to drivers that overtaking another vehicle would be unsafe due to potential oncoming traffic or other hazards. The solid line emphasizes the need for caution and safety, reinforcing that it is intended to keep drivers from attempting to pass where visibility is limited or where the road conditions do not allow for safe maneuvering. The presence of this line is a critical part of road signage and indicates a need for all drivers to adhere strictly to the rule of not crossing it to ensure safety for all road users.