Summary of State Speed Laws - NHTSA

Basis for a Speed Law Violation: Posted (Minimum) Speed Limit: Based on engineering
(continued) and traffic investigations, the State Transportation
Commission may establish a minimum speed limit on a
highway. §32-25-5.2
Other: I. The State Transportation Commission may promulgate
regulations establishing the maximum speed for any motor
vehicle, trailer, or wagon. 446 §32-25-6
II. No person shall tow a manufactured home or mobile home
with a width >102 inches >55 mph on an interstate highway or
>45 mph on any other highway. §32-25-6.1
III. No person shall drive a vehicle that is equipped with solid
rubber or cushion tires >10 mph. §32-25-6.2
IV. When a driver's view is obstructed at a railway crossing or
an intersection, the maximum lawful speed is 15 mph. §§32-
25-13 and 32-25-15
V. The State Transportation Commission may establish
"limited" speed zones for portions of State highways that are
undergoing maintenance during the hours work is actually
performed. §32-25-19.1
VI. Certain overweight vehicles which are hauling agricultural
products may be driven on the highways not >50 mph. §32-
22-42.2
Adjudication of Speed Law Violations:
Civil/Criminal Adjudication of Violation: All speed law violations are Class 2 misdemeanors. §§32-22-
42.2, 32-25-1.1 et seq. and 32-26-1
Other: N/A
Sanctions Following an Adjudication of a Speed Law Violation:
Criminal Sanctions:
Imprisonment:
Term (Day, Month, Years,
Etc.): Not more than 30 days. 447 §22-6-2
Mandatory Minimum Term: None
Fine:
Amount ($ Range): Not more than $200. §22-6-2
Mandatory Min. Fine ($): None
Other Penalties:
Traffic School:
Other: The fines are double for exceeding the "limited" posted speed
limit in a construction zone. However, the maximum fine
cannot be >$200. §32-25-19.1
Licensing Action:
Type of Licensing Action
446 I. Such regulations apply to the following types of vehicles: (1) any motor vehicle, trailer, or wagon including the load
weighing >10,000 lbs.; (2) any motor vehicle, trailer or wagon having a gross weight >8,000 lbs. on one axle; and (3) any
motor vehicle, trailer or wagon having a gross load >600 lbs. per inch width of tire as defined in the statute. §32-25-6
449 If they are financially able, offenders may be required to pay for the cost of their confinement in a county jail. §24-11-45
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