Speed Limit Sign (USA): meaning and what to do
Quick answer:The maximum legal speed in mph. Keep at or below it.
The US speed limit sign is a white rectangle with SPEED LIMIT and a number in miles per hour. It is the maximum legal speed in good conditions; drive slower when weather, traffic or visibility require.
What to do when you see this sign
Keep at or below it.
Good to know: The US uses white rectangles for regulatory signs instead of red circles.
What kind of sign is it?
US regulatory sign (MUTCD). US regulatory signs are mostly white rectangles with black lettering, plus the stop, yield, do not enter and wrong way signs. They state laws you must obey.
Learn how to read every sign family by shape and colour in road signs and their meanings.
Questions about this sign
What does the speed limit sign mean?
Related signs
More guides
Contact us
Found a mistake, want a sign added, or have a question about road rules in your country? Send an email and we'll reply as soon as we can.
We can't give legal advice about a specific ticket. For that, contact a solicitor or traffic attorney.