Driver's License Test Prep
Horizontal white rectangle with the legend At Signal in black text
MUTCD
R10-31P
Category
regulatory
Color
white
Shape
rectangle horizontal
National · MUTCD Sign Reference

At Signal Plaque

Supplemental plaque indicating the regulation applies at the traffic signal.

A small companion plaque mounted with another regulatory sign, used to clarify that the rule above takes effect at the traffic signal rather than at a stop line, ramp, or other location. Most often paired with right-turn or movement-restriction signs that change behavior depending on signal location.

In the same family

Related signs

Red octagon with white border and the word STOP in large white letters across the center.
Stop
Downward-pointing red triangle with a white interior triangle and the word YIELD in red letters.
Yield
Small red rectangular plaque with white border and the words ALL WAY in white letters.
All Way Plaque
Red circle on a square white background with the words DO NOT ENTER in white above and below a wide white horizontal bar.
Do Not Enter
Horizontal red rectangle with the words WRONG WAY stacked in large white letters.
Wrong Way
Source

FHWA SHSM Interim — R10-31P (https://mutcd.fhwa.dot.gov/shsm_interim/zip_files/r10_31p.zip) (Public domain (FHWA))

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