Regulatory Signs
Slower Traffic Keep Right sign
Drivers moving below the normal flow of traffic must use the right-hand lane so faster vehicles can pass on the left.
- Shape
- Vertical rectangle
- Color
- White with black
- Type
- Regulatory
What to do
- Move over instead of holding up the line behind you.
How to read it
Vertical rectangle. Taller than it is wide. Most signs in this shape state a rule you must follow.
White with black. Black on white is a regulatory sign: a traffic law you must follow.
Regulatory sign. Regulatory signs state traffic laws. Ignoring one is a violation.
Signs follow the national standard (the MUTCD) in every state. Your state handbook is the final word for your test.
Related signs
Signs that look similar or come up together on the test.
Road signs quiz and flashcards
Drill every sign on your phone, along with the rest of your state’s test.
Not a government website. USA DMV (usadmv.app) is an independent study resource. It is not affiliated with, endorsed by or operated by any state DMV, the Texas Department of Public Safety or any other government agency. Practice questions are written to reflect official driver handbooks but are not the official test questions. Always confirm current requirements with your state’s licensing agency.