New Hampshire

DOT Regulations Summary

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Regulations vary depending on your vehicle, load, and configuration.
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Or visit the state website(s) below for additional information:

Legal Dimensions & Weight
Gross Weight 80,000 Lbs
Single Axle 22,400 Lbs
Tandem Axle 36,000 Lbs
Tri Axle 54,000 Lbs
Max Length (Semi) 53 Feet
Max Length (Non-Semi) 45 Feet
Overall Max Length 75 Feet
Front Overhang 3 Feet
Rear Overhang 4 Feet
Width 8.5 Feet
Height 13.5 Feet