Follow the control that applies to you
Drivers, people riding bicycles, and pedestrians must follow an applicable official traffic-control device unless an authorized officer directs otherwise.
Read RCW 46.61.050Washington permit test study topic
Washington road signs and traffic signals
A sign or signal can change what a driver must do in the same roadway situation. Start by identifying the official traffic control that applies, then read the conditions around it.
Take the free 20-question previewOriginal study material based on current Washington laws. Independent resource; not affiliated with Washington DOL.
Sign recognition
Learn the signs by shape and purpose
Start with the shape and color, then read the word, number, or symbol before deciding what the sign requires.
The eight-sided shape makes a STOP sign distinctive before you read the word.
The downward-pointing triangle gives a YIELD sign its recognizable outline.
The posted number is the essential detail on this rectangular regulatory sign.
The yellow diamond warns that a traffic signal is ahead.
Official sign artwork: FHWA Standard Highway Signs, 2024 Release 3
State-specific details
How Washington treats traffic controls
Shape recognition is only the first step. Washington law also defines who must follow a control and what different signal systems mean.
Sources checked July 28, 2026
Read pedestrian signals separately
A WALK symbol permits a pedestrian to begin crossing. A steady or flashing hand means do not enter, while drivers must still stop for someone who lawfully began crossing earlier.
Read RCW 46.61.060Overhead signals control individual lanes
When lane-direction signals are operating, a green indication opens the lane to travel and a red indication means do not enter or use that lane.
Read RCW 46.61.070Primary sources
Check the current Washington source
Chapter 46.61 RCW addresses obedience to applicable official traffic-control devices and also contains provisions for pedestrian and lane-direction-control signals. Use the current official text when a signal, symbol, or exception matters.
Put it into practice
Practice the explanation, too
The no-account preview helps you practice identifying the applicable rule and checking the source-linked explanation.