Low Clearance
Category
Warning
Shape
Diamond
Color
Black on yellow
The overpass or structure ahead has limited height clearance. Tall vehicles must not go under it unless they fit within the posted height.
Common test question
On the DMV permit test you may be shown this sign and asked “What does this sign mean?” The answer is Low Clearance. Recognize it by its diamond shape and black on yellow colors — a hallmark of warning signs.
Practice with the Road Signs Quiz →