New Hampshire Truck Speed Limit
65 mph on the interstates for trucks and cars both. No split. One stretch runs higher: I-93 from mile marker 45 to the Vermont line is posted 70 (RSA 265:60), trucks included. Other four-lane divided highways are 65, and secondary roads default to 55. New Hampshire uses a fixed statewide fine schedule, so a ticket costs the same in every county.
How fast a truck can run in New Hampshire
65 mph on the interstates for trucks and cars both. No split. One stretch runs higher: I-93 from mile marker 45 to the Vermont line is posted 70 (RSA 265:60), trucks included. Other four-lane divided highways are 65, and secondary roads default to 55. New Hampshire uses a fixed statewide fine schedule, so a ticket costs the same in every county.
Truck-specific rules and quirks
- Slower traffic keep right; pass on the left.
- One stretch runs above 65: I-93 from mile marker 45 up to the Vermont line is posted 70 (RSA 265:60), and that number applies to trucks. New Hampshire sets fines on a fixed statewide schedule (DSMV 428), so a ticket costs the same in every county.
What a speeding ticket costs
Fines follow a fixed statewide schedule (DSMV 428), the same in every court: roughly $80 for 1-5 mph over and about $124 for 6-10 over, climbing with speed. Push far enough over and you get a mandatory court date instead of a mailed fine. No county-by-county lottery.
New Hampshire Truck Speed Limit FAQ
What is the truck speed limit in New Hampshire?
Do trucks have a lower speed limit than cars in New Hampshire?
What is the speeding penalty for a truck in New Hampshire?
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 Traffic laws change and this can be out of date, so always confirm the current statute and obey posted signs before you rely on it.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://gc.nh.gov/rsa/html/xxi/265/265-60.htm. See our Terms & Disclaimer.
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