Stop sign
A regulatory sign requiring traffic to come to a complete stop before entering the intersection.
Rules vary by state and country. This explains the sign's standard meaning in the U.S. Manual on Uniform Traffic Control Devices; it isn't legal advice.
How to read it
The STOP sign is the only octagonal sign in the MUTCD, so its shape identifies it even from behind or when the legend is covered.
Also searched as: octagon sign, R1-1.
More road signs
Sources
- Manual on Uniform Traffic Control Devices for Streets and Highways, 11th edition, MUTCD, U.S. Federal Highway Administration
- Standard Highway Signs and Markings, U.S. Federal Highway Administration
Last reviewed September 23, 2026.