Arizona Truck Speed Limit
No split in Arizona. Trucks run 75 on rural interstates like cars (A.R.S. 28-701). The catch is criminal speed: more than 85 mph anywhere is a class 3 misdemeanor (A.R.S. 28-701.02), so the 75 corridors leave a heavy truck almost no cushion.
How fast a truck can run in Arizona
No split in Arizona. Trucks run 75 on rural interstates like cars (A.R.S. 28-701). The catch is criminal speed: more than 85 mph anywhere is a class 3 misdemeanor (A.R.S. 28-701.02), so the 75 corridors leave a heavy truck almost no cushion.
Truck-specific rules and quirks
- Arizona runs 75 on rural interstates statewide with no truck split, but treats extreme speed as a crime: over 85 mph anywhere is a class 3 misdemeanor (A.R.S. 28-701.02).
What a speeding ticket costs
Arizona criminalizes extreme speed. More than 85 mph anywhere, or 20-plus over in a business or residential district, is a class 3 misdemeanor (A.R.S. 28-701.02), not a simple ticket.
Arizona Truck Speed Limit FAQ
What is the truck speed limit in Arizona?
Do trucks have a lower speed limit than cars in Arizona?
What is the speeding penalty for a truck in Arizona?
Reference information for planning, not legal advice. Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it. Last reviewed July 2026. Source: https://www.iihs.org/topics/speed/speed-limit-laws. See our Terms & Disclaimer.
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